Player profile
Herrera Mendez, Oscar Ivan
Dossier
12 of 13 games analyzed.
Accuracy: 91.2%
Opened d4: 4/4
Castled kingside: 7Same-side castling: 6Did not castle: 2Opposite-side castling: 1
Fianchettoed queenside: 4Played in the center: 3Played on the kingside: 3Fianchettoed kingside: 3
Active pieces: 7Space advantage: 6Sacrificed material: 6Kept the bishop pair: 5Initiated exchanges: 4Backward pawn: 3Isolated pawn: 2Played gambits: 2Missed tactics: 2Avoided exchanges: 2
Openings
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As White 5 games 2W 1D 2L
Queen's Pawn Game 3 games 2W 1D 0L
(unspecified) 3 games 2W 1D 0L
(unspecified)
3 games
2W
1D
0L
Indian Defense 1 game 0W 0D 1L
Anti-Nimzo-Indian 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Indian Defense 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Traditional Variation
1 game
0W
0D
1L
As Black 5 games 2W 0D 3L
Sicilian Defense 3 games 1W 0D 2L
Four Knights Variation 1 game 0W 0D 1L
Exchange Variation
1 game
0W
0D
1L
Alapin Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
French Variation 1 game 0W 0D 1L
Westerinen Attack
1 game
0W
0D
1L
English Opening 2 games 1W 0D 1L
Symmetrical Variation 1 game 1W 0D 0L
Duchamp Variation
1 game
1W
0D
0L
Carls-Bremen System 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 51
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 13 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.08.09 | Ronda 9: Herrera Mendez, Oscar Ivan - Vega Castaneda, Ulises Antonio | 9.17 | 2026.08.09 Vega Castaneda, Ulises Antonio (5108128) (1879) | 1 | 100.00% | ||
| 2026.08.08 | Ronda 8: Corrales Jimenez, Zenia - Herrera Mendez, Oscar Ivan | 8.13 | 2026.08.08 Corrales Jimenez, Zenia (3506355) (2142) | 0 | 85.60% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2026.08.08 | Ronda 7: Reyes Alba, Carlos Andres - Herrera Mendez, Oscar Ivan | 7.19 | 2026.08.08 Reyes Alba, Carlos Andres (550000705) (1641) | 1 | 90.60% | 1. c4 c5 2. g3 Nf6 3. Bg2 g6 | |
| 2026.08.08 | Ronda 6: Herrera Mendez, Oscar Ivan - Contreras Cardona, Alfredo Ignacio | 6.18 | 2026.08.08 Contreras Cardona, Alfredo Ignacio (29605814) (1947) | ½ | 98.90% | 1. d4 d5 2. e3 e6 3. Bd3 Nf6 | |
| 2026.08.07 | Ronda 5: Herrera Mendez, Oscar Ivan - Vega Castaneda, Luis Carlos | 5.21 | 2026.08.07 Vega Castaneda, Luis Carlos (5108110) (1836) | 1 | 94.20% | 1. d4 d5 2. e3 Nc6 3. c4 e5 | |
| 2026.08.06 | Ronda 4: Silva Hernandez, Jose Luis - Herrera Mendez, Oscar Ivan | 4.17 | 2026.08.06 Silva Hernandez, Jose Luis (5102570) (1993) | 0 | 83.90% | 1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 | |
| 2026.08.06 | Ronda 3: Herrera Mendez, Oscar Ivan - Fonseca Manrique, Enrique | 3.16 | 2026.08.06 Fonseca Manrique, Enrique (5114330) (2168) | 0 | 81.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.08.05 | Ronda 2: Montoya Medina, Santiago - Herrera Mendez, Oscar Ivan | 2.21 | 2026.08.05 Montoya Medina, Santiago (29627168) (1601) | 1 | 94.90% | 1. e4 c5 2. c3 e6 3. d4 d5 | |
| 2026.08.05 | Ronda 1: Herrera Mendez, Oscar Ivan - Torres Rosas, Luis Carlos | 1.10 | 2026.08.05 Torres Rosas, Luis Carlos (5111080) (2342) | 0 | - | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2025.10.30 | Round 2: Lopez Gonzalez, Abel Fabian - Herrera Mendez, Oscar Ivan | 2.7 | 2025.10.30 Lopez Gonzalez, Abel Fabian (3512673) (2394) | 0 | 91.00% | 1. e4 c5 2. Nf3 e6 3. b3 Nc6 | |
| 2023.10.28 | Round 5: Alexander Andres Hernandez Jimenez - Oscar Ivan Herrera Mendez | 2023.10.28 Alexander Andres Hernandez Jimenez (2133) | 0 | 87.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | ||
| 2023.10.27 | Round 4: Oscar Ivan Herrera Mendez - Ulises Antonio Vega Castaneda | 2023.10.27 Ulises Antonio Vega Castaneda (1907) | ½ | 92.90% | 1. d4 d5 2. e3 Nc6 3. c4 e5 | ||
| 2023.10.26 | Round 2: Algol Jorajuria Mendoza - Oscar Ivan Herrera Mendez | 2023.10.26 Algol Jorajuria Mendoza | * | 90.30% | 1. e4 c6 2. d4 d5 3. e5 Bf5 |