Player profile
Ospina Castro, Santiago
Dossier
163 of 192 games analyzed.
Accuracy: 90%
Opened e4: 36/59Opened Nf3: 21/59Opened d4: 1/59Opened b3: 1/59
Castled kingside: 105Same-side castling: 95Opposite-side castling: 13Castled queenside: 10Did not castle: 10
Played in the center: 49Fianchettoed queenside: 49Played on the queenside: 32Fianchettoed kingside: 31Played on the kingside: 29
Active pieces: 93Space advantage: 79Kept the bishop pair: 74Sacrificed material: 66Initiated exchanges: 63Backward pawn: 59Isolated pawn: 44Avoided exchanges: 37Missed tactics: 21Played gambits: 10
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 75 games 42W 21D 8L
Zukertort Opening 18 games 10W 5D 2L
Nimzo-Larsen Variation 15 games 8W 4D 2L
(unspecified)
15 games
8W
4D
2L
Queen's Gambit Invitation 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Sicilian Invitation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Sicilian Defense 15 games 9W 3D 2L
Moscow Variation 3 games 3W 0D 0L
(unspecified)
2 games
2W
0D
0L
Main Line
1 game
1W
0D
0L
Accelerated Dragon 2 games 1W 1D 0L
Maróczy Bind
2 games
1W
1D
0L
Closed 2 games 0W 0D 1L
Traditional
1 game
0W
0D
1L
(unspecified)
1 game
0W
0D
0L
Delayed Alapin Variation 1 game 1W 0D 0L
with d6
1 game
1W
0D
0L
French Variation 1 game 0W 0D 1L
Westerinen Attack
1 game
0W
0D
1L
Najdorf Variation 1 game 1W 0D 0L
Opocensky Variation
1 game
1W
0D
0L
Kalashnikov Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Scheveningen Variation 1 game 0W 1D 0L
Classical Variation
1 game
0W
1D
0L
O'Kelly Variation 1 game 1W 0D 0L
Maróczy Bind, Paulsen Line
1 game
1W
0D
0L
Kan Variation 1 game 1W 0D 0L
Maróczy Bind, Réti Variation
1 game
1W
0D
0L
Four Knights Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
French Defense 9 games 1W 6D 1L
Exchange Variation 4 games 0W 3D 0L
(unspecified)
4 games
0W
3D
0L
Tarrasch Variation 2 games 1W 0D 1L
Open System, Main Line
1 game
1W
0D
0L
Haberditz Variation
1 game
0W
0D
1L
Rubinstein Variation 2 games 0W 2D 0L
Blackburne Defense
1 game
0W
1D
0L
Kasparov Attack
1 game
0W
1D
0L
St. George Defense 1 game 0W 1D 0L
Three Pawn Attack
1 game
0W
1D
0L
Nimzo-Larsen Attack 9 games 6W 2D 1L
Classical Variation 8 games 6W 1D 1L
(unspecified)
8 games
6W
1D
1L
Symmetrical Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Italian Game 6 games 4W 2D 0L
Two Knights Defense 3 games 2W 1D 0L
Modern Bishop's Opening
3 games
2W
1D
0L
Classical Variation 3 games 2W 1D 0L
Giuoco Pianissimo
2 games
1W
1D
0L
Giuoco Pianissimo, with a6
1 game
1W
0D
0L
Caro-Kann Defense 5 games 2W 1D 2L
Exchange Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Main Line 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Tartakower Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Karpov Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
English Opening 3 games 1W 1D 0L
Agincourt Defense 3 games 1W 1D 0L
Wimpy System
2 games
1W
0D
0L
(unspecified)
1 game
0W
1D
0L
Pirc Defense 3 games 2W 1D 0L
Classical Variation 2 games 1W 1D 0L
Quiet System
2 games
1W
1D
0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Petrov's Defense 3 games 3W 0D 0L
Kaufmann Attack 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Bishop's Opening 2 games 2W 0D 0L
Vienna Hybrid 2 games 2W 0D 0L
Spielmann Attack
2 games
2W
0D
0L
Queen's Pawn Game 1 game 1W 0D 0L
Anti-Torre 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Réti Opening 1 game 1W 0D 0L
Anglo-Slav Variation 1 game 1W 0D 0L
Bled Variation
1 game
1W
0D
0L
As Black 78 games 29W 28D 18L
French Defense 29 games 8W 13D 8L
Rubinstein Variation 11 games 3W 2D 6L
Blackburne Defense
11 games
3W
2D
6L
Tarrasch Variation 5 games 1W 4D 0L
(unspecified)
1 game
0W
1D
0L
Open System, Euwe-Keres Line
1 game
0W
1D
0L
Chistyakov Defense
1 game
0W
1D
0L
Eliskases Variation
1 game
0W
1D
0L
Open System, Main Line
1 game
1W
0D
0L
Exchange Variation 3 games 2W 1D 0L
(unspecified)
3 games
2W
1D
0L
Classical Variation 3 games 0W 2D 1L
Shirov-Anand Variation
1 game
0W
1D
0L
Burn Variation, Morozevich Line
1 game
0W
0D
1L
(unspecified)
1 game
0W
1D
0L
Steinitz Variation 3 games 1W 2D 0L
Boleslavsky Variation
3 games
1W
2D
0L
King's Indian Attack 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Advance Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Steiner Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Gambit Declined 15 games 4W 7D 2L
Exchange Variation 5 games 1W 2D 1L
Positional Variation
3 games
1W
1D
0L
Reshevsky Variation
2 games
0W
1D
1L
Harrwitz Attack 3 games 0W 2D 1L
Fianchetto Defense
2 games
0W
1D
1L
(unspecified)
1 game
0W
1D
0L
Tartakower Defense 3 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Makogonov Exchange Variation
1 game
0W
0D
0L
(unspecified) 2 games 0W 2D 0L
(unspecified)
2 games
0W
2D
0L
Cambridge Springs Defense 1 game 1W 0D 0L
Capablanca Variation
1 game
1W
0D
0L
Three Knights Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Sicilian Defense 11 games 6W 3D 2L
Modern Variations 3 games 3W 0D 0L
(unspecified)
3 games
3W
0D
0L
Moscow Variation 2 games 0W 2D 0L
Main Line
1 game
0W
1D
0L
(unspecified)
1 game
0W
1D
0L
Richter-Rauzer Variation 2 games 1W 0D 1L
Modern Variation
1 game
1W
0D
0L
(unspecified)
1 game
0W
0D
1L
Closed 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Delayed Alapin Variation 1 game 0W 1D 0L
with d6
1 game
0W
1D
0L
Chekhover Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Pawn Game 7 games 5W 1D 1L
Symmetrical Variation 3 games 2W 0D 1L
Pseudo-Catalan
2 games
2W
0D
0L
(unspecified)
1 game
0W
0D
1L
London System 3 games 2W 1D 0L
(unspecified)
2 games
2W
0D
0L
with e6
1 game
0W
1D
0L
Torre Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Bogo-Indian Defense 4 games 3W 1D 0L
Retreat Variation 3 games 2W 1D 0L
(unspecified)
3 games
2W
1D
0L
Grünfeld Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Zukertort Opening 3 games 0W 1D 2L
Nimzo-Larsen Variation 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Kingside Fianchetto 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Indian Defense 2 games 1W 1D 0L
London System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
King's Indian Attack 2 games 1W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Sicilian Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Nimzo-Larsen Attack 2 games 1W 0D 0L
Indian Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Classical Variation 1 game 0W 0D 0L
(unspecified)
1 game
0W
0D
0L
Vienna Game 1 game 0W 1D 0L
Mieses Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Rapport-Jobava System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
English Opening 1 game 0W 0D 1L
Agincourt Defense 1 game 0W 0D 1L
Catalan Defense Accepted
1 game
0W
0D
1L
Blunders Top 4 of 561
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 192 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.10.12 | Round 9: Ospina Castro, Santiago - Gomez Silva, Maximiliano | 9.6 | 2026.10.12 Gomez Silva, Maximiliano (144406061) (1891) | 1 | 94.20% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2026.10.12 | Round 8: Loaiza Cuervo, Santiago - Ospina Castro, Santiago | 8.4 | 2026.10.12 Loaiza Cuervo, Santiago (4486820) (2096) | ½ | 95.90% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 | |
| 2026.10.11 | Round 7: Ospina Castro, Santiago - Perez Tangarife, Simon | 7.6 | 2026.10.11 Perez Tangarife, Simon (4492994) (2056) | ½ | 98.40% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| 2026.10.11 | Round 6: Arrieta Hernandez, Cristian - Ospina Castro, Santiago | 6.3 | 2026.10.11 Arrieta Hernandez, Cristian (4455207) (2330) | 0 | 84.10% | 1. Nf3 d5 2. d4 Nf6 3. Nbd2 Bf5 | |
| 2026.10.10 | Round 5: Ayala Delgado, Sergio Alejandro - Ospina Castro, Santiago | 5.6 | 2026.10.10 Ayala Delgado, Sergio Alejandro (4496396) (2105) | 1 | 97.20% | 1. e4 e6 2. d3 d5 3. Nd2 Nf6 | |
| 2026.10.09 | Round 4: Ospina Castro, Santiago - Cano Alcaraz, Juan Jose | 4.3 | 2026.10.09 Cano Alcaraz, Juan Jose (144403224) (2254) | ½ | 96.70% | 1. e4 c6 2. d4 d5 3. exd5 cxd5 | |
| 2026.10.09 | Round 3: Ardila, Oscar Humberto - Ospina Castro, Santiago | 3.6 | 2026.10.09 Ardila, Oscar Humberto (4404742) (1956) | 1 | 90.10% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.10.08 | Round 1: Rueda Ahumada, Gabriel Omar - Ospina Castro, Santiago | 1.12 | 2026.10.08 Rueda Ahumada, Gabriel Omar (4496329) (1934) | ½ | 93.70% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2026.08.09 | Round 9: Ospina Castro, Santiago - Narvaez Ramirez, Faber Alberto | 9.8 | 2026.08.09 Narvaez Ramirez, Faber Alberto (4403002) (2085) | * | 87.40% | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | |
| 2026.08.09 | Round 8: Michelen Rodriguez, Victor Isaac - Ospina Castro, Santiago | 8.6 | 2026.08.09 Michelen Rodriguez, Victor Isaac (6401317) (2141) | ½ | 91.30% | 1. d4 d5 2. Bf4 Nf6 3. e3 e6 | |
| 2026.08.08 | Round 7: Ospina Castro, Santiago - Mora Moron, Jose Ramon | 7.12 | 2026.08.08 Mora Moron, Jose Ramon (3902994) (2044) | 1 | 95.80% | 1. Nf3 Nf6 2. b3 c5 3. Bb2 d6 | |
| 2026.08.07 | Round 6: Simancas Maradei, Miguel Alejand - Ospina Castro, Santiago | 6.12 | 2026.08.07 Simancas Maradei, Miguel Alejand (3905063) (2049) | ½ | 88.50% | 1. e4 c5 2. Nf3 d6 3. c3 Nf6 | |
| 2026.08.07 | Round 5: Ospina Castro, Santiago - Ortiz Monsalve, Sebastian | 5.11 | 2026.08.07 Ortiz Monsalve, Sebastian (4486897) (2032) | ½ | 87.00% | 1. e4 e6 2. d4 d5 3. Nd2 dxe4 | |
| 2026.08.05 | Round 1: Ospina Castro, Santiago - Diaz Larrea, Juan Manuel | 1.13 | 2026.08.05 Diaz Larrea, Juan Manuel (4482972) (1943) | ½ | 95.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.07.12 | Round 11: Cifuentes, John Jairo - Ospina Castro, Santiago | 11.8 | 2026.07.12 Cifuentes, John Jairo (4404467) (2166) | 0 | 96.20% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2026.07.12 | Round 5: Cano Alcaraz, Juan Jose - Ospina Castro, Santiago | 5.11 | 2026.07.12 Cano Alcaraz, Juan Jose (144403224) (2234) | ½ | 97.80% | 1. e4 e5 2. Nc3 Nf6 3. g3 d5 | |
| 2026.07.11 | Round 2: Ospina Castro, Santiago - Arrieta Hernandez, Cristian | 2.3 | 2026.07.11 Arrieta Hernandez, Cristian (4455207) (2339) | ½ | 89.00% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| 2026.04.05 | Round 7: Gomez Cabrera, Juan David - Ospina Castro, Santiago | 7.15 | 2026.04.05 Gomez Cabrera, Juan David (144432011) (1691) | 1 | 99.60% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2026.04.05 | Round 6: Ospina Castro, Santiago - Burbano Rodriguez, Angel Gabriel | 6.19 | 2026.04.05 Burbano Rodriguez, Angel Gabriel (4476255) (1743) | 1 | 92.90% | 1. d4 d5 2. Nf3 Bg4 3. g3 Nf6 | |
| 2026.04.05 | Round 5: Ospina Castro, Santiago - Pinillo Canon, Silvana | 5.7 | 2026.04.05 Pinillo Canon, Silvana (4450850) (1853) | ½ | 76.80% | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | |
| 2026.04.05 | Round 4: Palomino Escobar, Daniel Fernando - Ospina Castro, Santiago | 4.11 | 2026.04.05 Palomino Escobar, Daniel Fernando (4418247) (1949) | 1 | 98.50% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2026.04.05 | Round 3: Ospina Castro, Santiago - Ballesteros Lopez, William | 3.19 | 2026.04.05 Ballesteros Lopez, William (4410424) (1811) | 1 | 91.50% | 1. Nf3 d5 2. b3 c5 3. e3 a6 | |
| 2026.04.05 | Round 2: Giraldo Guevara, Juan Diego - Ospina Castro, Santiago | 2.23 | 2026.04.05 Giraldo Guevara, Juan Diego (4497406) (1742) | 1 | - | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.04.05 | Round 11: Ospina Castro, Santiago - Rodriguez Valencia, Sebastian | 11.8 | 2026.04.05 Rodriguez Valencia, Sebastian (4438213) (1911) | 1 | - | 1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 | |
| 2026.04.05 | Round 10: Gonzalez Velasco, Leandro - Ospina Castro, Santiago | 10.6 | 2026.04.05 Gonzalez Velasco, Leandro (4452879) (2102) | * | - | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2026.04.05 | Round 9: Ospina Castro, Santiago - Mera Rivas, Jose Moises | 9.3 | 2026.04.05 Mera Rivas, Jose Moises (4497619) (1922) | * | - | 1. Nf3 e6 2. b3 d5 3. Bb2 Nf6 | |
| 2026.04.05 | Round 8: Ardila, Oscar Humberto - Ospina Castro, Santiago | 8.3 | 2026.04.05 Ardila, Oscar Humberto (4404742) (1956) | * | - | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2026.04.05 | Round 7: Ospina Castro, Santiago - Cardona Duque, Juan Esteban | 7.4 | 2026.04.05 Cardona Duque, Juan Esteban (4495357) (1883) | ½ | - | 1. Nf3 c5 2. b3 d5 3. e3 Nc6 | |
| 2026.04.05 | Round 6: Mora Munoz, Alejandro - Ospina Castro, Santiago | 6.2 | 2026.04.05 Mora Munoz, Alejandro (4469844) (2069) | 0 | - | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2026.04.04 | Round 5: Ospina Castro, Santiago - Lopez Rayo, Santiago | 5.1 | 2026.04.04 Lopez Rayo, Santiago (4455665) (2414) | ½ | - | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | |
| 2026.04.04 | Round 4: Ospina Castro, Santiago - Campos Gomez, Manuel | 4.1 | 2026.04.04 Campos Gomez, Manuel (4444710) (2368) | 1 | - | 1. Nf3 Nf6 2. b3 c5 3. Bb2 Nc6 | |
| 2026.04.04 | Round 3: Castro Castro, Joaquin - Ospina Castro, Santiago | 3.6 | 2026.04.04 Castro Castro, Joaquin (4483227) (2015) | 1 | - | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2026.04.04 | Round 2: Ospina Castro, Santiago - Delgado Calle, Julian | 2.6 | 2026.04.04 Delgado Calle, Julian (4404947) (1733) | 1 | - | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | |
| 2026.04.04 | Round 1: Cruz Duque, Esteban - Ospina Castro, Santiago | 1.6 | 2026.04.04 Cruz Duque, Esteban (4495985) (1687) | 1 | - | 1. e4 e6 2. Nf3 d5 3. exd5 exd5 | |
| 2026.01.11 | Round 8: Ospina Castro, Santiago - Salazar, Andres Felipe | 8.7 | 2026.01.11 Salazar, Andres Felipe (4405730) (1956) | ½ | 95.80% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| 2026.01.11 | Round 7: Vargas Benavides, Mauricio - Ospina Castro, Santiago | 7.8 | 2026.01.11 Vargas Benavides, Mauricio (4404572) (1919) | ½ | 93.80% | 1. d4 e6 2. Nf3 d5 3. Bf4 Nf6 | |
| 2026.01.10 | Round 6: Ospina Castro, Santiago - Cano Alcaraz, Juan Jose | 6.3 | 2026.01.10 Cano Alcaraz, Juan Jose (144403224) (2287) | 0 | 73.20% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | |
| 2026.01.10 | Round 5: Lopez Idarraga, Daniel Eduardo - Ospina Castro, Santiago | 5.5 | 2026.01.10 Lopez Idarraga, Daniel Eduardo (4405501) (2023) | 1 | 90.00% | 1. d4 d5 2. Nf3 Nf6 3. Bg5 Nbd7 | |
| 2026.01.10 | Round 4: Ospina Castro, Santiago - Pineda Arevalo, Jose Ariel | 4.8 | 2026.01.10 Pineda Arevalo, Jose Ariel (4413172) (1958) | 1 | 88.30% | 1. e4 c5 2. Nf3 d6 3. c3 Nf6 | |
| 2026.01.09 | Round 3: Tobar Beltran, Miguel Angel - Ospina Castro, Santiago | 3.19 | 2026.01.09 Tobar Beltran, Miguel Angel (4479890) (1791) | 1 | 88.80% | 1. d4 e6 2. Bf4 Nf6 3. e3 d5 | |
| 2026.01.08 | Round 2: Ospina Castro, Santiago - Longas Serrano, Edgar | 2.9 | 2026.01.08 Longas Serrano, Edgar (4426398) (1822) | ½ | - | 1. e4 c5 2. Nf3 g6 3. c4 Bg7 | |
| 2026.01.08 | Round 1: Zuluaga, Nicolas - Ospina Castro, Santiago | 1.9 | 2026.01.08 Zuluaga, Nicolas (4405900) (1682) | 1 | 97.40% | 1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 | |
| 2026.01.08 | Round 9: Ospina Castro, Santiago - Jaramillo, Victor Fabian | 9.9 | 2026.01.08 Jaramillo, Victor Fabian (4402766) (2013) | 1 | - | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | |
| 2026.01.08 | Round 8: Arango Arenas, Juan Camilo - Ospina Castro, Santiago | 8.5 | 2026.01.08 Arango Arenas, Juan Camilo (4443535) (2215) | 0 | - | 1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 | |
| 2026.01.08 | Round 7: Ospina Castro, Santiago - Rios, David | 7.7 | 2026.01.08 Rios, David (4410750) (1832) | 1 | - | 1. Nf3 e6 2. b3 f6 3. d4 d5 | |
| 2026.01.07 | Round 6: Munoz Galvez, Jhon Edison - Ospina Castro, Santiago | 6.3 | 2026.01.07 Munoz Galvez, Jhon Edison (4403797) (2267) | 0 | - | 1. Nf3 d5 2. g3 Nf6 3. Bg2 Bg4 | |
| 2026.01.07 | Round 5: Hernandez Jimenez, Xavi - Ospina Castro, Santiago | 5.1 | 2026.01.07 Hernandez Jimenez, Xavi (4494105) (2383) | ½ | - | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2026.01.07 | Round 4: Ospina Castro, Santiago - Roldan Arboleda, Jorge Alain | 4.7 | 2026.01.07 Roldan Arboleda, Jorge Alain (4493710) (1790) | 1 | - | 1. Nf3 Nf6 2. b3 e6 3. Bb2 Be7 | |
| 2026.01.07 | Round 3: Ospina Castro, Santiago - Gutierrez, Jhon Jaime | 3.8 | 2026.01.07 Gutierrez, Jhon Jaime (4428013) (1930) | 1 | - | 1. Nf3 e6 2. b3 d5 3. Bb2 f5 | |
| 2026.01.07 | Round 2: Lopez Ramirez, Jorge Hernan - Ospina Castro, Santiago | 2.9 | 2026.01.07 Lopez Ramirez, Jorge Hernan (4426720) (1891) | 1 | - | 1. e4 e6 2. d4 d5 3. Nd2 dxe4 | |
| 2026.01.07 | Round 1: Ospina Castro, Santiago - Celis Vargas, Walter Enrique | 1.10 | 2026.01.07 Celis Vargas, Walter Enrique (4426533) (1746) | 1 | - | 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 | |
| 2025.05.12 | Round 7: Valencia Quinchia, Isabella - Ospina Castro, Santiago | 7.5 | 2025.05.12 Valencia Quinchia, Isabella (4496302) (1789) | 1 | 95.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.05.11 | Round 6: Ospina Castro, Santiago - Henao Orozco, Luis Carlos | 6.8 | 2025.05.11 Henao Orozco, Luis Carlos (144412380) (1915) | 1 | 96.90% | 1. e4 e5 2. Nc3 Bc5 3. Bc4 Nf6 | |
| 2025.05.10 | Round 5: Diaz Larrea, Juan Manuel - Ospina Castro, Santiago | 5.10 | 2025.05.10 Diaz Larrea, Juan Manuel (4482972) (1921) | ½ | 96.80% | 1. e4 e6 2. d4 d5 3. Nd2 h6 | |
| 2025.05.10 | Round 4: Ospina Castro, Santiago - Arango, Andres Mauricio | 4.4 | 2025.05.10 Arango, Andres Mauricio (4403789) (2033) | 0 | - | 1. e4 c5 2. Nf3 e6 3. b3 a6 | |
| 2025.05.09 | Round 3: Restrepo Ortiz, Brayan David - Ospina Castro, Santiago | 3.1 | 2025.05.09 Restrepo Ortiz, Brayan David (144411839) (1991) | ½ | 95.50% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2025.05.08 | Round 2: Ospina Castro, Santiago - Negron Lizarazo, Juan Sebastian | 2.2 | 2025.05.08 Negron Lizarazo, Juan Sebastian (3936910) (1911) | 1 | 63.00% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 | |
| 2025.05.07 | Round 1: Gallego Herrera, Santiago - Ospina Castro, Santiago | 1.2 | 2025.05.07 Gallego Herrera, Santiago (4426134) (1752) | 1 | 96.00% | 1. d4 d5 2. Nf3 Nf6 3. g3 c5 | |
| 2025.04.19 | Round 9: Martinez Serna, Juan Esteban - Ospina Castro, Santiago | 9.9 | 2025.04.19 Martinez Serna, Juan Esteban (4488334) (1943) | ½ | 99.00% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2025.04.18 | Round 8: Mora Moron, Jose Ramon - Ospina Castro, Santiago | 8.13 | 2025.04.18 Mora Moron, Jose Ramon (3902994) (2020) | 1 | 90.90% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2025.04.18 | Round 7: Ospina Castro, Santiago - Arrieta Hernandez, Cristian | 7.12 | 2025.04.18 Arrieta Hernandez, Cristian (4455207) (2309) | 0 | - | 1. e4 e6 2. d4 d5 3. Nd2 f5 | |
| 2025.04.17 | Round 6: Gomez Barrero, Sergio - Ospina Castro, Santiago | 6.15 | 2025.04.17 Gomez Barrero, Sergio (4417780) (1931) | 1 | 94.70% | 1. b3 Nf6 2. Bb2 d5 3. e3 g6 | |
| 2025.04.17 | Round 5: Ospina Castro, Santiago - Duran Barraza, Mateo Andres | 5.24 | 2025.04.17 Duran Barraza, Mateo Andres (4411820) (1969) | 1 | - | 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 | |
| 2025.04.16 | Round 4: Loaiza Cuervo, Santiago - Ospina Castro, Santiago | 4.17 | 2025.04.16 Loaiza Cuervo, Santiago (4486820) (1985) | ½ | - | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2025.04.15 | Round 3: Ospina Castro, Santiago - Sanchez Barreto, Josue Efrain | 3.23 | 2025.04.15 Sanchez Barreto, Josue Efrain (4477324) (1968) | ½ | - | 1. e4 e6 2. d4 d5 3. Nd2 dxe4 | |
| 2025.04.15 | Round 2: Ortiz Monsalve, Sebastian - Ospina Castro, Santiago | 2.22 | 2025.04.15 Ortiz Monsalve, Sebastian (4486897) (1947) | ½ | - | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| 2025.04.14 | Round 1: Ospina Castro, Santiago - Rivera Valentin, Christian Z. | 1.29 | 2025.04.14 Rivera Valentin, Christian Z. (3110818) (1829) | 1 | 96.80% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | |
| 2024.12.10 | Round 6: Ospina Castro, Santiago - Rodriguez Valencia, Sebastian | 6.1 | 2024.12.10 Rodriguez Valencia, Sebastian (4438213) (1969) | 1 | 79.00% | 1. e4 e5 2. Nf3 Nf6 3. d3 Nc6 | |
| 2024.12.10 | Round 4: Ospina Castro, Santiago - Diaz Meneses, Luisa Fernanda | 4.2 | 2024.12.10 Diaz Meneses, Luisa Fernanda (4421434) (1745) | 1 | 84.80% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.12.09 | Round 7: Ospina Castro, Santiago - Duque Blandon, Daniela | 7.21 | 2024.12.09 Duque Blandon, Daniela (144420790) (1597) | 1 | 93.70% | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 | |
| 2024.12.09 | Round 6: Londono Lopez, Donaldo - Ospina Castro, Santiago | 6.24 | 2024.12.09 Londono Lopez, Donaldo (4462009) (2050) | ½ | 97.70% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2024.12.09 | Round 5: Ospina Castro, Santiago - Marco Antonio Herrera Velasquez | 5.22 | 2024.12.09 Marco Antonio Herrera Velasquez | 1 | 92.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.12.09 | Round 4: Rodriguez Valencia, Sebastian - Ospina Castro, Santiago | 4.23 | 2024.12.09 Rodriguez Valencia, Sebastian (4438213) (1915) | ½ | 95.50% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2024.12.09 | Round 3: Ospina Castro, Santiago - Puerta Rendon, Josue | 3.24 | 2024.12.09 Puerta Rendon, Josue (4444922) (1845) | 1 | 90.60% | 1. Nf3 d5 2. b3 e6 3. Bb2 c5 | |
| 2024.12.09 | Round 2: Sanchez Riobo, Emily Dainne - Ospina Castro, Santiago | 2.22 | 2024.12.09 Sanchez Riobo, Emily Dainne (4441001) (1741) | 1 | 86.70% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2024.12.09 | Round 1: Ospina Castro, Santiago - Diaz Meneses, Luisa Fernanda | 1.24 | 2024.12.09 Diaz Meneses, Luisa Fernanda (4421434) (1752) | 1 | 95.00% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | |
| 2024.11.11 | Round 8: Arrieta Hernandez, Cristian - Ospina Castro, Santiago | 9.1 | 2024.11.11 Arrieta Hernandez, Cristian (4455207) (2260) | 0 | 82.20% | 1. Nf3 d5 2. c4 e6 3. d4 Nf6 | |
| 2024.11.11 | Round 2: Ospina Castro, Santiago - Garcia Pantoja, Roberto | 2.1 | 2024.11.11 Garcia Pantoja, Roberto (3509265) (2519) | 0 | 83.10% | 1. Nf3 d5 2. b3 c6 3. Bb2 Bf5 | |
| 2024.11.10 | Round 2: Bobadilla Viera, Jorge Samuel - Ospina Castro, Santiago | 2.5 | 2024.11.10 Bobadilla Viera, Jorge Samuel (3906353) (2363) | ½ | 94.60% | 1. d4 Nf6 2. c3 d5 3. Bg5 e6 | |
| 2024.10.14 | Round 9: Mitkov, Nikola - Ospina Castro, Santiago | 9.2 | 2024.10.14 Mitkov, Nikola (15000290) (2346) | 0 | 79.10% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2024.10.14 | Round 8: Ospina Castro, Santiago - Narvaez, Zamir | 8.6 | 2024.10.14 Narvaez, Zamir (4404238) (2080) | 1 | 90.60% | 1. e4 c5 2. Nf3 g6 3. c4 Nc6 | |
| 2024.10.13 | Round 7: Ramos Ariza, Juan Manuel - Ospina Castro, Santiago | 7.8 | 2024.10.13 Ramos Ariza, Juan Manuel (4422740) (2090) | ½ | 67.40% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2024.10.13 | Round 6: Ospina Castro, Santiago - Garzon Camelo, Andres Santiago | 6.6 | 2024.10.13 Garzon Camelo, Andres Santiago (4496370) (2282) | ½ | 96.00% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.10.12 | Round 5: Moncada Correa, Sara - Ospina Castro, Santiago | 5.8 | 2024.10.12 Moncada Correa, Sara (4460642) (2044) | ½ | 98.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2024.10.12 | Round 4: Ospina Castro, Santiago - Ortiz Monsalve, Sebastian | 4.7 | 2024.10.12 Ortiz Monsalve, Sebastian (4486897) (2008) | ½ | 66.90% | 1. e4 e6 2. d4 a6 3. c4 d5 | |
| 2024.10.11 | Round 3: Zapata, Juan Carlos - Ospina Castro, Santiago | 3.7 | 2024.10.11 Zapata, Juan Carlos (4403479) (2015) | 1 | 93.70% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2024.10.10 | Round 1: Valderrama Castano, Julian Camil - Ospina Castro, Santiago | 1.10 | 2024.10.10 Valderrama Castano, Julian Camil (4416775) (1909) | 0 | 81.50% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2024.10.03 | Ronda 14: Ospina Castro, Santiago - Vargas Villalobos, Daniel Fernando | 14.4 | 2024.10.03 Vargas Villalobos, Daniel Fernando (4452020) (1764) | 1 | 92.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.10.03 | Ronda 13: Vargas Villalobos, Daniel Fernando - Ospina Castro, Santiago | 13.4 | 2024.10.03 Vargas Villalobos, Daniel Fernando (4452020) (1764) | 0 | 72.30% | 1. c4 e6 2. e4 d5 3. cxd5 exd5 | |
| 2024.10.02 | Ronda 12: Murillo Loreo, Oscar Miguel - Ospina Castro, Santiago | 12.3 | 2024.10.02 Murillo Loreo, Oscar Miguel (4448855) (1947) | * | 88.40% | 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 | |
| 2024.10.02 | Ronda 11: Ospina Castro, Santiago - Murillo Loreo, Oscar Miguel | 11.3 | 2024.10.02 Murillo Loreo, Oscar Miguel (4448855) (1947) | 0 | 88.80% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 | |
| 2024.10.02 | Ronda 10: Ospina Castro, Santiago - Toro, Miguel Angel | 10.6 | 2024.10.02 Toro, Miguel Angel (4450612) (2047) | 1 | 70.40% | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | |
| 2024.10.02 | Ronda 9: Toro, Miguel Angel - Ospina Castro, Santiago | 9.6 | 2024.10.02 Toro, Miguel Angel (4450612) (2047) | ½ | 90.20% | 1. e4 e6 2. d3 d5 3. Nd2 Nf6 | |
| 2024.10.02 | Ronda 8: Ospina Castro, Santiago - Mora Munoz, John Alexander | 8.10 | 2024.10.02 Mora Munoz, John Alexander (4467884) (1770) | * | 89.80% | 1. e4 c5 2. Nc3 d6 3. f4 e6 | |
| 2024.10.02 | Ronda 7: Mora Munoz, John Alexander - Ospina Castro, Santiago | 7.10 | 2024.10.02 Mora Munoz, John Alexander (4467884) (1770) | 1 | 82.60% | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2024.10.02 | Ronda 6: Gonzalez Gutierrez, Cesar Luis - Ospina Castro, Santiago | 6.9 | 2024.10.02 Gonzalez Gutierrez, Cesar Luis (144403712) | 0 | 62.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.10.02 | Ronda 5: Ospina Castro, Santiago - Gonzalez Gutierrez, Cesar Luis | 5.9 | 2024.10.02 Gonzalez Gutierrez, Cesar Luis (144403712) | 1 | 91.20% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.10.02 | Ronda 4: Ospina Castro, Santiago - Tobar B, Jorge Esteban | 4.2 | 2024.10.02 Tobar B, Jorge Esteban (4430646) (1985) | * | 93.40% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| 2024.10.02 | Ronda 2: Valencia Gantiva, Cristian - Ospina Castro, Santiago | 2.3 | 2024.10.02 Valencia Gantiva, Cristian (4407857) (1957) | 0 | 68.50% | 1. Nf3 Nf6 2. b3 b6 3. Bb2 Bb7 | |
| 2024.10.02 | Ronda 1: Ospina Castro, Santiago - Valencia Gantiva, Cristian | 1.3 | 2024.10.02 Valencia Gantiva, Cristian (4407857) (1957) | 1 | 83.40% | 1. Nf3 Nf6 2. b3 b6 3. Bb2 Bb7 | |
| 2024.09.30 | Ronda 6: Rojas Castillo, Leibnitz Edison - Ospina Castro, Santiago | 6.2 | 2024.09.30 Rojas Castillo, Leibnitz Edison (4430611) (1951) | ½ | 98.30% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2024.09.30 | Ronda 5: Ospina Castro, Santiago - Pabon Arevalo, Emmanuel Alejandro | 5.2 | 2024.09.30 Pabon Arevalo, Emmanuel Alejandro (144421591) (1855) | 1 | 91.50% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.09.29 | Ronda 3: Ospina Castro, Santiago - Delgadoro Rodallega, Erwin Damar | 3.5 | 2024.09.29 Delgado Rodallega, Erwin Damar (144401019) (1915) | 1 | 97.60% | 1. e4 c6 2. d4 e5 3. dxe5 Qa5+ | |
| 2024.09.28 | Ronda 7: Ospina Castro, Santiago - Londono Lopez, Donaldo | 7.1 | 2024.09.28 Londono Lopez, Donaldo (4462009) (2145) | 1 | 97.20% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | |
| 2024.09.28 | Ronda 2: Ospina Castro, Santiago - Virviescas S, Christian Stewart | 2.5 | 2024.09.28 Virviescas S, Christian Stewart (4417151) (1842) | 1 | 95.80% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2024.09.28 | Ronda 1: Vallejo, Flavieth - Ospina Castro, Santiago | 1.6 | 2024.09.28 Vallejo, Flavieth (4463471) (1784) | 1 | 92.80% | 1. e4 c5 2. Nf3 d6 3. d3 Nc6 | |
| 2024.09.25 | Ronda 4: Valderrama Quiceno, Esteban Alb - Ospina Castro, Santiago | 4.1 | 2024.09.25 Valderrama Quiceno, Esteban Alb (4442024) (2418) | ½ | 96.10% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2024.09.22 | Round 9: Ospina Castro, Santiago - Bobadilla Viera, Jorge Samuel | 9.3 | 2024.09.22 Bobadilla Viera, Jorge Samuel (3906353) (2364) | ½ | 85.20% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.09.22 | Round 8: Ospina Castro, Santiago - Carrillo Parra, Miguel Alfredo | 8.5 | 2024.09.22 Carrillo Parra, Miguel Alfredo (3901866) (2193) | 1 | 93.40% | 1. e4 c5 2. Nf3 a6 3. c4 e6 | |
| 2024.09.21 | Round 7: Obando Guzman, Soren Federico - Ospina Castro, Santiago | 7.8 | 2024.09.21 Obando Guzman, Soren Federico (4431081) (2073) | 1 | 96.20% | 1. Nf3 d5 2. g3 c5 3. Bg2 g6 | |
| 2024.09.21 | Round 6: Ospina Castro, Santiago - Gonzalez Lopez, Nicolas Mateo | 6.4 | 2024.09.21 Gonzalez Lopez, Nicolas Mateo (4431073) (2203) | 0 | 89.30% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | |
| 2024.09.20 | Round 5: Garzon Camelo, Andres Santiago - Ospina Castro, Santiago | 5.5 | 2024.09.20 Garzon Camelo, Andres Santiago (4496370) (2104) | ½ | 92.70% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2024.09.20 | Round 4: Ospina Castro, Santiago - Sanchez Castellanos, German Alex | 4.9 | 2024.09.20 Sanchez Castellanos, German Alexander (3907589) (2035) | 1 | 78.10% | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 | |
| 2024.09.19 | Round 3: Suarez Duarte, Walter Camilo - Ospina Castro, Santiago | 3.12 | 2024.09.19 Suarez Duarte, Walter Camilo (4407385) (2006) | 1 | 98.20% | 1. e4 c5 2. Nf3 d6 3. b3 Nc6 | |
| 2024.09.18 | Round 1: Rios Gomez, Cristhian Camilo - Ospina Castro, Santiago | 1.1 | 2024.09.18 Rios Gomez, Cristhian Camilo (4403940) (2455) | 0 | 73.20% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2024.08.11 | Round 10: Mendoza, Rafael - Ospina Castro, Santiago | 10.5 | 2024.08.11 Mendoza, Rafael (4400119) (2220) | ½ | 97.00% | 1. e4 e6 2. d4 d5 3. Nd2 dxe4 | |
| 2024.08.11 | Round 9: Ospina Castro, Santiago - Toro, Miguel Angel | 9.11 | 2024.08.11 Toro, Miguel Angel (4450612) (2070) | 1 | 93.50% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2024.08.10 | Round 8: Munoz Triana, Joseph Steve - Ospina Castro, Santiago | 8.7 | 2024.08.10 Munoz Triana, Joseph Steve (4481712) (2300) | ½ | 90.90% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2024.08.10 | Round 7: Ospina Castro, Santiago - Zapata, Juan Carlos | 7.16 | 2024.08.10 Zapata, Juan Carlos (4403479) (2009) | 1 | 95.60% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | |
| 2024.08.09 | Round 6: Valderrama Quiceno, Esteban Alb - Ospina Castro, Santiago | 6.6 | 2024.08.09 Valderrama Quiceno, Esteban Alb (4442024) (2420) | 0 | 91.60% | 1. e4 e6 2. d4 d5 3. Nd2 dxe4 | |
| 2024.08.09 | Round 5: Ospina Castro, Santiago - Arrieta Hernandez, Cristian | 5.7 | 2024.08.09 Arrieta Hernandez, Cristian (4455207) (2214) | ½ | 96.70% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2024.08.08 | Round 4: Andrade Salcedo, Jorge Mario - Ospina Castro, Santiago | 4.17 | 2024.08.08 Andrade Salcedo, Jorge Mario (4494997) (1920) | 1 | 97.20% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2024.08.08 | Round 3: Ospina Castro, Santiago - Perez Tangarife, Simon | 3.20 | 2024.08.08 Perez Tangarife, Simon (4492994) (1885) | 1 | 98.20% | 1. Nf3 d5 2. b3 Bf5 3. Bb2 e6 | |
| 2024.08.07 | Round 2: Barrientos, Sergio E - Ospina Castro, Santiago | 2.3 | 2024.08.07 Barrientos, Sergio E (4401824) (2411) | 0 | 87.50% | 1. e4 e6 2. d4 d5 3. Nd2 dxe4 | |
| 2024.06.02 | Round 11: Johnson, Joshua - Ospina Castro, Santiago | 2024.06.02 Johnson, Joshua (7700768) (2310) | 0 | 87.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2024.06.02 | Round 9: Tobar B, Carlos Andres - Ospina Castro, Santiago | 2024.06.02 Tobar B, Carlos Andres (4430638) (1893) | ½ | 88.00% | 1. Nf3 Nf6 2. b3 b6 3. Bb2 Bb7 | ||
| 2024.06.02 | Round 8: Ospina Castro, Santiago - Meza Galvan, Luis A | 2024.06.02 Meza Galvan, Luis A (4432053) | 1 | 96.10% | 1. Nf3 g6 2. e4 d6 3. d4 Bg7 | ||
| 2024.06.02 | Round 7: Jaramillo Daza, David - Ospina Castro, Santiago | 2024.06.02 Jaramillo Daza, David (144420617) (1801) | 0 | 87.10% | 1. Nf3 g6 2. g3 Bg7 3. Bg2 e5 | ||
| 2024.06.02 | Round 6: Ospina Castro, Santiago - Zapata, Alonso | 2024.06.02 Zapata, Alonso (4400011) (2399) | 0 | 90.30% | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | ||
| 2024.06.01 | Round 5: Ruiz Jaraba, Gabriel - Ospina Castro, Santiago | 2024.06.01 Ruiz Jaraba, Gabriel (4441435) (1804) | 1 | 90.60% | 1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 | ||
| 2024.06.01 | Round 4: Ospina Castro, Santiago - Pena Nieto, Ana Marcela | 2024.06.01 Pena Nieto, Ana Marcela (4406362) (1841) | 1 | 97.20% | 1. Nf3 d5 2. b3 c5 3. e3 Nc6 | ||
| 2024.06.01 | Round 3: Fernandez Sanchez, Fernando Miguel - Ospina Castro, Santiago | 2024.06.01 Fernandez Sanchez, Fernando Miguel (3802299) (2423) | 0 | 81.00% | 1. c4 e6 2. g3 d5 3. Bg2 Nf6 | ||
| 2024.06.01 | Round 2: Ospina Castro, Santiago - Reyes Zavaleta, Sergio Gabriel | 2024.06.01 Reyes Zavaleta, Sergio Gabriel (3845494) (1542) | 1 | 95.10% | 1. Nf3 d5 2. b3 e6 3. Bb2 Nf6 | ||
| 2024.06.01 | Round 1: Suaza Builes, Oscar A - Ospina Castro, Santiago | 2024.06.01 Suaza Builes, Oscar A (4480350) (1661) | 1 | 92.70% | 1. d4 d5 2. Bf4 Nf6 3. e3 c5 | ||
| 2024.05.31 | Round 10: Ospina Castro, Santiago - Garzon Camelo, Andres Santiago | 2024.05.31 Garzon Camelo, Andres Santiago (4496370) (2099) | ½ | 97.30% | 1. Nf3 Nf6 2. b3 e6 3. Bb2 d5 | ||
| 2024.05.30 | Round 9: Alboredo, Julia - Ospina Castro, Santiago | 2024.05.30 Alboredo, Julia (2124807) (2202) | ½ | 87.60% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | ||
| 2024.05.30 | Round 9: Arias Gaviria, Mario Alexis - Ospina Castro, Santiago | 2024.05.30 Arias Gaviria, Mario Alexis (3800660) (2327) | 1 | 90.70% | 1. Nf3 d5 2. d4 Nf6 3. g3 e6 | ||
| 2024.05.30 | Round 8: Ospina Castro, Santiago - Cuervo Velasquez, Juan Manuel | 2024.05.30 Cuervo Velasquez, Juan Manuel (4486722) (1833) | 1 | 95.70% | 1. Nf3 Nf6 2. b3 b6 3. g3 Bb7 | ||
| 2024.05.30 | Round 7: Santos Flores, Alberto - Ospina Castro, Santiago | 2024.05.30 Santos Flores, Alberto (3601234) (2229) | 0 | 69.90% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | ||
| 2024.05.30 | Round 6: Ospina Castro, Santiago - Gallego, Julian Andres | 2024.05.30 Gallego, Julian Andres (4441192) (2220) | ½ | 88.30% | 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 | ||
| 2024.05.30 | Round 5: Reinhard Pinto, Dietmar - Ospina Castro, Santiago | 2024.05.30 Reinhard Pinto, Dietmar (7302770) (1782) | 1 | 96.00% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | ||
| 2024.05.30 | Round 4: Ospina Castro, Santiago - Cadena M, Gustavo Adolfo | 2024.05.30 Cadena M, Gustavo Adolfo (4404815) (2178) | 0 | 94.50% | 1. Nf3 Nf6 2. b3 b6 3. g3 Bb7 | ||
| 2024.05.30 | Round 3: Duran Vega, Sergio - Ospina Castro, Santiago | 2024.05.30 Duran Vega, Sergio (6501311) (2260) | 1 | 57.80% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | ||
| 2024.05.30 | Round 2: Ospina Castro, Santiago - Valdes Romero, Leonardo | 2024.05.30 Valdes Romero, Leonardo (6500331) (2425) | ½ | 95.70% | 1. Nf3 Nf6 2. b3 d6 3. d4 g6 | ||
| 2024.05.29 | Round 1: Restrepo Cifuentes, Luciana - Ospina Castro, Santiago | 2024.05.29 Restrepo Cifuentes, Luciana (4495292) (1636) | 1 | 96.80% | 1. e4 c5 2. Nc3 d6 3. d3 g6 | ||
| 2024.05.29 | Round 8: Ospina Castro, Santiago - Garnier, Rene | 2024.05.29 Garnier, Rene (114324) (2184) | ½ | 95.70% | 1. Nf3 g6 2. e4 Bg7 3. d4 d6 | ||
| 2024.05.28 | Round 7: Jimenez Jimenez, Leandro - Ospina Castro, Santiago | 2024.05.28 Jimenez Jimenez, Leandro (6415253) (2189) | ½ | 93.00% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | ||
| 2024.05.27 | Round 6: Ospina Castro, Santiago - Carrillo Parra, Miguel Alfredo | 2024.05.27 Carrillo Parra, Miguel Alfredo (3901866) (2251) | ½ | 98.10% | 1. Nf3 d5 2. b3 Bf5 3. Bb2 e6 | ||
| 2024.05.27 | Round 5: Gomez Barrera, Javiera Belen - Ospina Castro, Santiago | 2024.05.27 Gomez Barrera, Javiera Belen (3418723) (2209) | ½ | 89.80% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | ||
| 2024.05.27 | Round 4: Ospina Castro, Santiago - Reinhard Moller, Gustavo | 2024.05.27 Reinhard Moller, Gustavo (7306970) (1628) | 1 | 72.90% | 1. Nf3 d5 2. b3 Bf5 3. Bb2 e6 | ||
| 2024.05.27 | Round 3: Campos Gomez, Manuel - Ospina Castro, Santiago | 2024.05.27 Campos Gomez, Manuel (4444710) (2319) | ½ | 99.30% | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | ||
| 2024.05.27 | Round 2: Ospina Castro, Santiago - Jimenez Garcia, Emmanuel | 2024.05.27 Jimenez Garcia, Emmanuel (6504779) (2387) | ½ | 94.90% | 1. b3 b6 2. Nf3 Bb7 3. g3 Bxf3 | ||
| 2024.05.27 | Round 1: Agudelo Montoya, Gilberto - Ospina Castro, Santiago | 2024.05.27 Agudelo Montoya, Gilberto (144428901) (1648) | 1 | 89.40% | 1. e4 c5 2. Nc3 d6 3. g3 Nc6 | ||
| Round 9: Jimenez Garcia, Emmanuel - Ospina Castro, Santiago | 9.5 | Jimenez Garcia, Emmanuel (6504779) (2364) | 1 | 93.40% | 1. Nf3 d5 2. e3 Nf6 3. c4 e6 | ||
| Round 8: Ospina Castro, Santiago - Rios Parra, Alejandro | 8.6 | Rios Parra, Alejandro (4400348) (2168) | ½ | 97.40% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | ||
| Round 7: Cano, Luis Fernando - Ospina Castro, Santiago | 7.7 | Cano, Luis Fernando (4403681) (2048) | 1 | 93.60% | 1. Nf3 d5 2. g3 c5 3. Bg2 g6 | ||
| Round 6: Ospina Castro, Santiago - Salcedo, Pablo Esteban | 6.8 | Salcedo, Pablo Esteban (4419588) (2075) | ½ | 94.20% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | ||
| Round 4: Ortiz Lopera, Miguel Angel - Ospina Castro, Santiago | 4.10 | Ortiz Lopera, Miguel Angel (4487141) (1995) | 1 | 80.20% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| Round 3: Ospina Castro, Santiago - Casares Contreras, Jose Gabriel | 3.14 | Casares Contreras, Jose Gabriel (3960315) (2007) | 1 | 94.10% | 1. e4 c6 2. d4 d5 3. exd5 cxd5 | ||
| Round 2: Negron Lizarazo, Juan Sebastian - Ospina Castro, Santiago | 2.17 | Negron Lizarazo, Juan Sebastian (3936910) (1932) | ½ | 98.20% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| Round 1: Ospina Castro, Santiago - Diaz Larrea, Juan Manuel | 1.11 | Diaz Larrea, Juan Manuel (4482972) (1935) | ½ | 93.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | ||
| Round 7: Herrera Velasquez, Marco - Ospina Castro, Santiago | 7.3 | Herrera Velasquez, Marco (144451776) (1596) | 1 | - | 1. d4 Nf6 2. Nf3 d6 3. Bf4 g6 | ||
| 2023.10.15 | Round 8: Santiago Ospina Castro - Elizabeth Toro Castaneda | 2023.10.15 Elizabeth Toro Castaneda (1959) | ½ | 91.80% | 1. e4 c5 2. Nc3 g6 3. Bc4 Bg7 | ||
| 2023.10.15 | Round 7: Laura Lucia Dominguez - Santiago Ospina Castro | 2023.10.15 Laura Lucia Dominguez (1976) | ½ | 91.70% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | ||
| 2023.09.26 | Round 8: Santiago Ospina Castro - Esteban Alberto Valderrama Quiceno | 2023.09.26 Esteban Alberto Valderrama Quiceno (2424) | 0 | 92.40% | 1. e4 g6 2. d4 Bg7 3. Nc3 c6 | ||
| 2023.09.26 | Round 5: Santiago Ospina Castro - Leibnitz Edison Rojas Castillo | 2023.09.26 Leibnitz Edison Rojas Castillo (1918) | 1 | 92.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 | ||
| 2023.09.26 | Round 3: Santiago Ospina Castro - Andres Jeronimo Zapata Montoya | 2023.09.26 Andres Jeronimo Zapata Montoya (2092) | * | 68.60% | 1. Nf3 Nf6 2. b3 b6 3. g3 Bb7 | ||
| 2023.09.26 | Round 2: Santiago Ospina Castro - Wilmar Andres Vargas Serna | 2023.09.26 Wilmar Andres Vargas Serna | * | 92.70% | 1. e4 e6 2. d4 b6 3. Nc3 Bb7 | ||
| 2023.09.26 | Round 1: Wilmar Andres Vargas Serna - Santiago Ospina Castro | 2023.09.26 Wilmar Andres Vargas Serna | 1 | 95.80% | 1. d4 d5 2. f4 Nf6 3. Nf3 Bf5 | ||
| 2023.09.25 | XXX Juegos Universitarios Nacionales ASCUN 2023 Ajedrez Clasico Absoluto. | 6 | 2023.09.25 Miguel Angel Soto Gonzalez (2359) | 0 | 92.10% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2023.09.25 | Round 5: Santiago Ospina Castro - Leibnitz Edison Rojas Castillo | 2023.09.25 Leibnitz Edison Rojas Castillo (1918) | 1 | 90.30% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2023.09.24 | XXX Juegos Universitarios Nacionales ASCUN 2023 Ajedrez Clasico Absoluto. | 4 | 2023.09.24 Eduardo Alejandro Llano Bautista | ½ | 92.50% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 | |
| 2023.09.24 | Round 3: Jhon Edison Munoz Galvez - Santiago Ospina Castro | 2023.09.24 Jhon Edison Munoz Galvez | ½ | 96.20% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | ||
| 2023.09.23 | Round 2: Juan Manuel Diaz Larrea - Santiago Ospina Castro | 2023.09.23 Juan Manuel Diaz Larrea | 1 | 99.10% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | ||
| 2023.09.23 | Round 1: Santiago Ospina Castro - Jesus David Barrios Gonzalez | 2023.09.23 Jesus David Barrios Gonzalez | * | 97.00% | 1. e4 e6 2. Nf3 d5 3. Nc3 Nf6 | ||
| 2023.08.07 | Round 9: Carlos Jose Pinero Rodriguez - Santiago Ospina Castro | 2023.08.07 Carlos Jose Pinero Rodriguez | 0 | 82.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2023.08.07 | Round 8: Sebastian Marin Posada - Santiago Ospina Castro | 2023.08.07 Sebastian Marin Posada | ½ | 85.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2023.08.06 | Round 7: Santiago Ospina Castro - Angel Gabriel Cordoba Roa | 2023.08.06 Angel Gabriel Cordoba Roa | 0 | 90.30% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | ||
| 2023.08.06 | Round 6: Santiago Ospina Castro - Anderson Esmeraldas Huachi | 2023.08.06 Anderson Esmeraldas Huachi | 1 | 95.90% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2023.08.05 | Round 5: Juan Manuel Cuervo Velasquez - Santiago Ospina Castro | 2023.08.05 Juan Manuel Cuervo Velasquez | 1 | 88.90% | 1. c4 e6 2. Nf3 d5 3. g3 dxc4 | ||
| 2023.08.05 | Round 4: Wilson Guillermo Palencia Morales - Santiago Ospina Castro | 2023.08.05 Wilson Guillermo Palencia Morales | ½ | 90.20% | 1. e4 c5 2. c3 Nf6 3. e5 Nd5 | ||
| 2023.08.05 | Round 3: Santiago Ospina Castro - Santiago Loaiza Cuervo | 2023.08.05 Santiago Loaiza Cuervo | ½ | 99.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2023.08.04 | Round 2: Alejandro Rios Parra - Santiago Ospina Castro | 2023.08.04 Alejandro Rios Parra | ½ | 91.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2023.07.03 | Round 8: Santiago Ospina Castro - Pablo Alexander Ruiz Aguilar | 2023.07.03 Pablo Alexander Ruiz Aguilar | ½ | 97.30% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2023.06.29 | Round 3: Rafael Felipe Prasca Sosa - Santiago Ospina Castro | 2023.06.29 Rafael Felipe Prasca Sosa | 0 | 86.30% | 1. e4 c5 2. Nf3 d6 3. c3 Nf6 | ||
| 2023.06.28 | Round 1: Jorge Cori - Santiago Ospina Castro | 2023.06.28 Jorge Cori | 0 | 88.30% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 | ||
| 2023.06.19 | Round 7: Zamir Narvaez - Santiago Ospina Castro | 2023.06.19 Zamir Narvaez | 0 | 49.70% | 1. c4 e6 2. g3 d5 3. Bg2 Nf6 | ||
| 2023.06.19 | Round 6: Santiago Ospina Castro - Ernesto Aponte Castillo | 2023.06.19 Ernesto Aponte Castillo | ½ | 95.80% | 1. e4 e6 2. d4 d5 3. exd5 exd5 | ||
| 2023.06.18 | Round 5: Juan Pablo Sierra Mejia - Santiago Ospina Castro | 2023.06.18 Juan Pablo Sierra Mejia | 1 | 92.40% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | ||
| 2023.06.18 | Round 4: Santiago Ospina Castro - Luis Angel Florez Salazar | 2023.06.18 Luis Angel Florez Salazar | ½ | 91.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | ||
| 2023.06.17 | Round 3: Samuel Mesa Baez - Santiago Ospina Castro | 2023.06.17 Samuel Mesa Baez | ½ | 89.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2023.06.17 | Round 2: Santiago Ospina Castro - Miguel Alfredo Carrillo Parra | 2023.06.17 Miguel Alfredo Carrillo Parra | 1 | 93.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 |