Player profile
Katz, Alexander
Dossier
90 of 91 games analyzed.
Accuracy: 89.9%
Opened e4: 44/46Opened c3: 1/46Opened Nf3: 1/46
Castled kingside: 73Same-side castling: 66Opposite-side castling: 10Castled queenside: 9Did not castle: 8
Played in the center: 34Played on the queenside: 23Fianchettoed queenside: 21Fianchettoed kingside: 17Played on the kingside: 14
Active pieces: 63Initiated exchanges: 61Sacrificed material: 57Space advantage: 54Kept the bishop pair: 46Backward pawn: 46Isolated pawn: 43Missed tactics: 27Avoided exchanges: 17Played gambits: 13
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 46 games 20W 13D 13L
Sicilian Defense 17 games 8W 4D 5L
Richter-Rauzer Variation 3 games 0W 2D 1L
Modern Variation
1 game
0W
1D
0L
Neo-Modern Variation, Early Deviations
1 game
0W
1D
0L
Neo-Modern Variation
1 game
0W
0D
1L
Taimanov Variation 3 games 1W 1D 1L
Bastrikov Variation
3 games
1W
1D
1L
Accelerated Dragon 2 games 2W 0D 0L
Modern Bc4 Variation
1 game
1W
0D
0L
Maróczy Bind
1 game
1W
0D
0L
Moscow Variation 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Nyezhmetdinov-Rossolimo Attack 2 games 2W 0D 0L
(unspecified)
1 game
1W
0D
0L
Fianchetto Variation
1 game
1W
0D
0L
Najdorf Variation 2 games 0W 1D 1L
English Attack
2 games
0W
1D
1L
Kan Variation 1 game 0W 0D 1L
Polugaevsky Variation
1 game
0W
0D
1L
Lasker-Pelikan Variation 1 game 0W 0D 1L
Sveshnikov Variation, Chelyabinsk Variation
1 game
0W
0D
1L
Dragon Variation 1 game 1W 0D 0L
Yugoslav Attack, Modern Line
1 game
1W
0D
0L
Ruy Lopez 8 games 2W 3D 3L
Morphy Defense 4 games 1W 1D 2L
Modern Steinitz Defense
1 game
1W
0D
0L
Fianchetto Defense Deferred
1 game
0W
0D
1L
Schliemann Defense Deferred
1 game
0W
0D
1L
Cozio Defense
1 game
0W
1D
0L
Closed 2 games 1W 0D 1L
Smyslov Defense
1 game
0W
0D
1L
(unspecified)
1 game
1W
0D
0L
Open Berlin Defense 1 game 0W 1D 0L
Showalter Variation
1 game
0W
1D
0L
Berlin Defense 1 game 0W 1D 0L
Anti-Berlin Variation
1 game
0W
1D
0L
Italian Game 8 games 4W 1D 3L
Classical Variation 7 games 4W 1D 2L
Giuoco Pianissimo
7 games
4W
1D
2L
Two Knights Defense 1 game 0W 0D 1L
Modern Bishop's Opening
1 game
0W
0D
1L
Four Knights Game 2 games 0W 2D 0L
Scotch Variation Accepted 2 games 0W 2D 0L
Main Line
2 games
0W
2D
0L
Caro-Kann Defense 2 games 1W 0D 1L
Advance Variation 2 games 1W 0D 1L
(unspecified)
1 game
1W
0D
0L
Short Variation
1 game
0W
0D
1L
Alekhine Defense 2 games 1W 0D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Philidor Defense 1 game 0W 1D 0L
Lion Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
French Defense 1 game 0W 1D 0L
Classical Variation 1 game 0W 1D 0L
Burn Variation
1 game
0W
1D
0L
Scotch Game 1 game 1W 0D 0L
Scotch Gambit 1 game 1W 0D 0L
Advance Variation
1 game
1W
0D
0L
Saragossa Opening 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Scandinavian Defense 1 game 1W 0D 0L
Valencian Variation 1 game 1W 0D 0L
Main Line
1 game
1W
0D
0L
Pirc Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Zukertort Opening 1 game 1W 0D 0L
Kingside Fianchetto 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
As Black 45 games 16W 18D 11L
Pirc Defense 6 games 3W 1D 2L
Classical Variation 2 games 1W 1D 0L
Quiet System
2 games
1W
1D
0L
(unspecified) 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Byrne Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
150 Attack 1 game 1W 0D 0L
Sveshnikov-Jansa Attack
1 game
1W
0D
0L
English Opening 5 games 1W 2D 2L
Agincourt Defense 2 games 1W 0D 1L
Catalan Defense Accepted
2 games
1W
0D
1L
King's English Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Anglo-Indian Defense 1 game 0W 1D 0L
King's Knight Variation
1 game
0W
1D
0L
Mikenas-Carls Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Italian Game 4 games 0W 4D 0L
Classical Variation 2 games 0W 2D 0L
Giuoco Pianissimo
2 games
0W
2D
0L
Two Knights Defense 2 games 0W 2D 0L
Modern Bishop's Opening
1 game
0W
1D
0L
Polerio Defense, Bishop Check Line
1 game
0W
1D
0L
Indian Defense 4 games 1W 2D 1L
London System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Knights Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Dzindzi-Indian Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Accelerated London System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Nimzo-Indian Defense 3 games 2W 0D 1L
Kmoch Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Sämisch Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
St. Petersburg Variation 1 game 1W 0D 0L
Fischer Variation
1 game
1W
0D
0L
Queen's Gambit Declined 2 games 0W 1D 1L
Three Knights Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Cambridge Springs Defense 1 game 0W 1D 0L
Rubinstein Variation
1 game
0W
1D
0L
Rapport-Jobava System 2 games 2W 0D 0L
(unspecified) 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Ruy Lopez 2 games 0W 2D 0L
Morphy Defense 2 games 0W 2D 0L
Neo-Arkhangelsk Variation
2 games
0W
2D
0L
Sicilian Defense 2 games 1W 0D 1L
Nyezhmetdinov-Rossolimo Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Dragon Variation 1 game 1W 0D 0L
Yugoslav Attack
1 game
1W
0D
0L
Caro-Kann Defense 2 games 1W 1D 0L
Two Knights Attack 1 game 0W 1D 0L
Mindeno Variation, Exchange Line
1 game
0W
1D
0L
Breyer Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Tarrasch Defense 2 games 0W 2D 0L
Classical Variation 2 games 0W 2D 0L
Réti Variation
1 game
0W
1D
0L
Advance Variation
1 game
0W
1D
0L
Catalan Opening 1 game 0W 1D 0L
Open Defense 1 game 0W 1D 0L
Classical Line
1 game
0W
1D
0L
Zukertort Opening 1 game 0W 0D 1L
Nimzo-Larsen Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Defense 1 game 0W 1D 0L
Tarrasch Variation 1 game 0W 1D 0L
Chistyakov Defense
1 game
0W
1D
0L
Bird Opening 1 game 0W 0D 1L
Dutch Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Slav Defense 1 game 0W 0D 1L
Quiet Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Petrov's Defense 1 game 0W 1D 0L
Modern Attack 1 game 0W 1D 0L
Center Variation
1 game
0W
1D
0L
Trompowsky Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Indian Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 1 game 1W 0D 0L
London System 1 game 1W 0D 0L
with e6
1 game
1W
0D
0L
Van Geet Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Nimzowitsch Defense 1 game 1W 0D 0L
Williams Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Blunders Top 4 of 351
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 91 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.04.08 | Round 3: Bogner, Sebastian - Katz, Alexander | 3.10 | 2026.04.08 Bogner, Sebastian (4692055) (2550) | 0 | 90.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.04.06 | X Open Semana Santa 2026 - Grupo A | 9.12 | 2026.04.06 Sivuk, Vitaly (14116502) (2522) | ½ | 83.90% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.04.05 | X Open Semana Santa 2026 - Grupo A | 8.31 | 2026.04.05 Safarov, Deniel (13619802) (2256) | 1 | 96.70% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.04.04 | X Open Semana Santa 2026 - Grupo A | 6.13 | 2026.04.04 Piorun, Kacper (1130420) (2536) | 0 | 91.10% | 1. c4 Nf6 2. Nf3 e6 3. g3 d5 | |
| 2026.04.03 | X Open Semana Santa 2026 - Grupo A | 5.13 | 2026.04.03 Chen, Qi b (8614733) (2484) | ½ | 93.60% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | |
| 2026.04.03 | X Open Semana Santa 2026 - Grupo A | 4.4 | 2026.04.03 Fedorchuk, Sergey A. (14102536) (2585) | ½ | 96.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.04.02 | X Open Semana Santa 2026 - Grupo A | 3.32 | 2026.04.02 Sala Esquiva, Miguel (54766745) (2117) | 1 | 98.00% | 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 | |
| 2025.10.12 | Round 8: Katz, Alexander - Adewumi, Tanitoluwa | 8.3 | 2025.10.12 Adewumi, Tanitoluwa (30966396) (2467) | ½ | 86.30% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.10.12 | Round 7: Brodsky, David - Katz, Alexander | 7.4 | 2025.10.12 Brodsky, David (2073250) (2469) | ½ | 87.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2025.10.12 | Round 6: Katz, Alexander - Zhu, Linxi | 6.4 | 2025.10.12 Zhu, Linxi (39900428) (2189) | 1 | 84.40% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 | |
| 2025.10.12 | Round 5: Katz, Alexander - Kozlek, Tommy | 5.8 | 2025.10.12 Kozlek, Tommy (39918572) (1926) | 1 | 93.40% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.10.12 | Round 4: Nasta, Kiren Vivek - Katz, Alexander | 4.5 | 2025.10.12 Nasta, Kiren Vivek (30943612) (2107) | ½ | 91.60% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2025.10.12 | Round 2: Smith, Daniel - Katz, Alexander | 2.7 | 2025.10.12 Smith, Daniel (2024195) | 1 | 94.30% | 1. d4 d6 2. Nc3 Nf6 3. e4 g6 | |
| 2025.10.12 | Round 1: Katz, Alexander - Lee, Rohan | 1.9 | 2025.10.12 Lee, Rohan (39927865) (2004) | 1 | 85.60% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 | |
| 2025.10.12 | Round 7: George, Kevin - Katz, Alexander | 7.4 | 2025.10.12 George, Kevin (10669515) (2257) | ½ | 97.70% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | |
| 2025.10.11 | Round 6: Katz, Alexander - Nasta, Kiren Vivek | 6.3 | 2025.10.11 Nasta, Kiren Vivek (30943612) (1889) | 0 | 88.80% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.10.11 | Round 5: Dixit, Arun - Katz, Alexander | 5.4 | 2025.10.11 Dixit, Arun (30937671) | 1 | 80.90% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2025.10.11 | Round 2: Katz, Alexander - Ulloa Centeno, Leandro Nicolas | 2.6 | 2025.10.11 Ulloa Centeno, Leandro Nicolas (3636372) | 1 | 96.00% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 | |
| 2025.10.11 | Round 1: Smith, Daniel - Katz, Alexander | 1.7 | 2025.10.11 Smith, Daniel (2024195) (2022) | 1 | 86.90% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 | |
| 2025.10.09 | Round 9: Bortnyk, Mykola - Katz, Alexander | 9.1 | 2025.10.09 Bortnyk, Mykola (14120836) (2651) | 0 | 87.60% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2025.10.09 | Round 3: Katz, Alexander - Chasin, Nico | 3.1 | 2025.10.09 Chasin, Nico (30908477) (2443) | 0 | 79.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.10.09 | Round 4: Katz, Alexander - Bortnyk, Mykola | 4.1 | 2025.10.09 Bortnyk, Mykola (14120836) (2517) | 0 | 85.70% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.10.09 | Round 3: Chasin, Nico - Katz, Alexander | 3.1 | 2025.10.09 Chasin, Nico (30908477) (2414) | 1 | 84.10% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2025.07.13 | Round 9: Katz, Alexander - Nagy, Gabor | 9.4 | 2025.07.13 Nagy, Gabor (737119) (2463) | ½ | 98.60% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2025.07.12 | Round 8: Stearman, Josiah - Katz, Alexander | 8.2 | 2025.07.12 Stearman, Josiah (2062496) (2451) | ½ | 89.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.07.12 | Round 7: Katz, Alexander - Sun, Ryan | 7.5 | 2025.07.12 Sun, Ryan (30965659) (2346) | 1 | 91.80% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2025.07.10 | Round 5: Sheehan, Ethan - Katz, Alexander | 5.5 | 2025.07.10 Sheehan, Ethan (30943965) (2366) | 1 | 96.40% | 1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 | |
| 2025.07.10 | Round 4: Katz, Alexander - Gauri, Shankar | 4.2 | 2025.07.10 Gauri, Shankar (5041350) (2371) | ½ | 93.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2025.07.09 | Round 3: Kaplan, Avi Harrison - Katz, Alexander | 3.4 | 2025.07.09 Kaplan, Avi Harrison (30934559) (2304) | 0 | 86.50% | 1. Nf3 Nf6 2. b3 d5 3. Bb2 Bf5 | |
| 2025.07.09 | Round 2: Katz, Alexander - Plat, Vojtech | 2.3 | 2025.07.09 Plat, Vojtech (325740) (2487) | 0 | 70.90% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.07.08 | Round 1: Cruz, Cristhian - Katz, Alexander | 1.3 | 2025.07.08 Cruz, Cristhian (3801969) (2477) | 0 | 89.00% | 1. c4 e5 2. g3 d6 3. Bg2 f5 | |
| 2025.07.07 | Round 6: Lin, Bryan Enming - Katz, Alexander | 6.1 | 2025.07.07 Lin, Bryan Enming (30987121) (2302) | ½ | 99.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.05.26 | 12th Cherry Blossom Classic | 9.5 | 2025.05.26 Brady, Tyson (30970369) (2164) | ½ | 93.50% | 1. e4 e6 2. d4 d5 3. Nd2 c5 | |
| 2025.05.26 | 12th Cherry Blossom Classic | 8.6 | 2025.05.26 Wang, Kevin (30996635) (2073) | ½ | 82.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.05.25 | 12th Cherry Blossom Classic | 7.4 | 2025.05.25 Popilski, Gil (2809060) (2445) | ½ | 94.90% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2025.05.25 | 12th Cherry Blossom Classic | 6.7 | 2025.05.25 Samuelson, Andrew (2020580) (2088) | 1 | 96.10% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | |
| 2025.05.24 | 12th Cherry Blossom Classic | 5.3 | 2025.05.24 Stremavicius, Titas (12804444) (2544) | 0 | 91.20% | 1. d4 Nf6 2. Nf3 e6 3. g3 b5 | |
| 2025.05.24 | 12th Cherry Blossom Classic | 4.6 | 2025.05.24 Semenov, Valeri (14101319) (2155) | 1 | 97.10% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.05.23 | 12th Cherry Blossom Classic | 3.7 | 2025.05.23 Diao, Matthew Guo (30970547) (2115) | ½ | - | 1. d4 Nf6 2. c4 e6 3. Nf3 a6 | |
| 2025.05.23 | 12th Cherry Blossom Classic | 2.6 | 2025.05.23 Slade, Theodore (426547) (2113) | ½ | 92.40% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2025.05.22 | 12th Cherry Blossom Classic | 1.7 | 2025.05.22 Li, Sophie (30981107) (2029) | 1 | 94.00% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2025.04.27 | Round 9: Katz, Alexander - Macias Pino, Diego | 9.20 | 2025.04.27 Macias Pino, Diego (24529133) (2510) | 0 | 84.40% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.04.25 | Round 8: Katz, Alexander - Royal, Shreyas | 8.4 | 2025.04.25 Royal, Shreyas (448869) (2394) | ½ | 82.50% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2025.04.25 | Round 7: Bharath Subramaniyam H - Katz, Alexander | 7.2 | 2025.04.25 Bharath Subramaniyam H (46634827) (2520) | 0 | 80.80% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 | |
| 2025.04.25 | Round 6: Katz, Alexander - Zanan, Evgeny | 6.3 | 2025.04.25 Zanan, Evgeny (24101940) (2408) | 1 | 88.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.04.24 | Round 4: Katz, Alexander - Dragnev, Valentin | 4.2 | 2025.04.24 Dragnev, Valentin (1634852) (2494) | ½ | 87.20% | 1. c3 e5 2. c4 Nf6 3. a3 c5 | |
| 2025.04.23 | Round 2: Ivanchuk, Vasyl - Katz, Alexander | 2.7 | 2025.04.23 Ivanchuk, Vasyl (14100010) (2604) | 0 | 91.80% | 1. f4 d5 2. Nf3 c5 3. e3 Nc6 | |
| 2025.04.21 | Semana Santa A. 2025 | 9.22 | 2025.04.21 Berdayes Ason, Dylan Isidro (3516016) (2478) | ½ | 88.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.01.20 | Round 9: Katz, Alexander - Mardov, Dimitar | 9.1 | 2025.01.20 Mardov, Dimitar (30919495) (2504) | ½ | 99.50% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2025.01.20 | Round 8: Shlyakhtenko, Robert - Katz, Alexander | 8.5 | 2025.01.20 Shlyakhtenko, Robert (30936934) (2429) | 0 | 79.80% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2025.01.19 | Round 7: Katz, Alexander - Chasin, Nico | 7.2 | 2025.01.19 Chasin, Nico (30908477) (2414) | 0 | 80.40% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.01.19 | Round 6: Schnaider, Ilan - Katz, Alexander | 6.4 | 2025.01.19 Schnaider, Ilan (169013) (2392) | ½ | 97.40% | 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 | |
| 2025.01.18 | Round 5: Katz, Alexander - Kevlishvili, Robby | 5.3 | 2025.01.18 Kevlishvili, Robby (1040634) (2559) | 0 | 89.00% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.01.18 | Round 4: Cordova, Emilio - Katz, Alexander | 4.3 | 2025.01.18 Cordova, Emilio (3801497) (2533) | ½ | 85.70% | 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2025.01.17 | Round 3: Katz, Alexander - Ostrovskiy, Aleksandr | 3.4 | 2025.01.17 Ostrovskiy, Aleksandr (2034239) (2409) | 1 | 86.20% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2025.01.17 | Round 2: Escobar Forero, Alder - Katz, Alexander | 2.2 | 2025.01.17 Escobar Forero, Alder (4400801) (2420) | 1 | 99.20% | 1. e4 c6 2. d3 d5 3. Nd2 e5 | |
| 2025.01.16 | Round 1: Katz, Alexander - Park, Evan | 1.5 | 2025.01.16 Park, Evan (30931142) (2406) | 0 | 88.70% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.12.29 | 34th Annual North American Open | 6.18 | 2024.12.29 Yim, Sung Ho (2062020) (2309) | 0 | 86.70% | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 | |
| 2024.12.28 | Round 5: Katz, Alexander - Quesada Perez, Yasser | 5.4 | 2024.12.28 Quesada Perez, Yasser (3509362) (2577) | 0 | 90.30% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.12.27 | Round 4: Atwell, Rose - Katz, Alexander | 4.6 | 2024.12.27 Atwell, Rose (30951011) (2169) | ½ | 94.10% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | |
| 2024.12.27 | 34th Annual North American Open | 3.16 | 2024.12.27 Gutla, Aryan (30945968) (2271) | 1 | 92.20% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.12.27 | 34th Annual North American Open | 2.15 | 2024.12.27 Lee, Megan (2029618) (2294) | ½ | 96.10% | 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 | |
| 2024.10.13 | Round 13: Hoffmann, Asa - Katz, Alexander | 13.7 | 2024.10.13 Hoffmann, Asa (2001470) (2185) | 1 | 90.10% | 1. d4 Nf6 2. Bg5 d5 3. e3 e6 | |
| 2024.10.13 | Round 12: Katz, Alexander - Chasin, Nico | 12.5 | 2024.10.13 Chasin, Nico (30908477) (2416) | 0 | 86.40% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2024.10.13 | Round 11: Chasin, Nico - Katz, Alexander | 11.5 | 2024.10.13 Chasin, Nico (30908477) (2416) | ½ | 76.40% | 1. c4 Nf6 2. Nc3 e6 3. e4 d5 | |
| 2024.10.13 | Round 10: Katz, Alexander - Morris-Suzuki, Alan H | 10.6 | 2024.10.13 Morris-Suzuki, Alan H (30933218) (1863) | ½ | 91.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.10.13 | Round 9: Morris-Suzuki, Alan H - Katz, Alexander | 9.6 | 2024.10.13 Morris-Suzuki, Alan H (30933218) (1863) | 1 | 96.70% | 1. Nf3 Nf6 2. g3 d5 3. Bg2 Bf5 | |
| 2024.10.13 | Round 8: Bortnyk, Mykola - Katz, Alexander | 8.3 | 2024.10.13 Bortnyk, Mykola (14120836) (2405) | 0 | 77.80% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2024.10.13 | Round 7: Katz, Alexander - Bortnyk, Mykola | 7.3 | 2024.10.13 Bortnyk, Mykola (14120836) (2405) | 0 | 76.50% | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 | |
| 2024.10.13 | Round 6: Katz, Alexander - Gaw, Chloe | 6.5 | 2024.10.13 Gaw, Chloe (30966892) (2004) | 1 | 93.90% | 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 | |
| 2024.10.13 | Round 5: Gaw, Chloe - Katz, Alexander | 5.5 | 2024.10.13 Gaw, Chloe (30966892) (2004) | 1 | 93.90% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.10.13 | Round 4: Katz, Alexander - Meduri, Aakaash | 4.5 | 2024.10.13 Meduri, Aakaash (2032252) (2049) | 1 | 62.80% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | |
| 2024.10.13 | Round 3: Meduri, Aakaash - Katz, Alexander | 3.5 | 2024.10.13 Meduri, Aakaash (2032252) (2049) | ½ | 85.30% | 1. d4 Nf6 2. Bf4 d6 3. e3 g6 | |
| 2024.10.13 | Round 2: Weisz, Bryan - Katz, Alexander | 2.5 | 2024.10.13 Weisz, Bryan (30934133) (2069) | ½ | 96.80% | 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 | |
| 2024.10.13 | Round 1: Katz, Alexander - Weisz, Bryan | 1.5 | 2024.10.13 Weisz, Bryan (30934133) (2069) | 1 | 94.60% | 1. Nf3 g6 2. e4 c6 3. d4 d5 | |
| 2024.10.12 | Round 7: Katz, Alexander - Hardaway, Brewington | 7.1 | 2024.10.12 Hardaway, Brewington (30941849) (2489) | ½ | 81.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.10.12 | Round 6: George Micheal, Kevin - Katz, Alexander | 6.1 | 2024.10.12 George, Kevin (10669515) (2267) | ½ | 95.40% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.10.12 | Round 5: Tang, Andrew - Katz, Alexander | 5.1 | 2024.10.12 Tang, Andrew (2059630) (2527) | 1 | 90.50% | 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 | |
| 2024.10.12 | Round 4: Katz, Alexander - Bortnyk, Mykola | 4.1 | 2024.10.12 Bortnyk, Mykola (14120836) (2405) | 1 | 81.40% | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 | |
| 2024.10.12 | Round 3: Katz, Alexander - Chasin, Nico | 3.2 | 2024.10.12 Chasin, Nico (30908477) (2416) | 1 | 96.10% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2024.10.12 | Round 2: Bonin, Jay - Katz, Alexander | 2.3 | 2024.10.12 Bonin, Jay (2000644) (2131) | 1 | 95.90% | 1. Nc3 d5 2. e4 d4 3. Nce2 e5 | |
| 2024.10.12 | Round 1: Katz, Alexander - Chen, Alex | 1.5 | 2024.10.12 Chen, Alex (30929652) (2006) | 1 | 98.00% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.03.21 | Reykjavik Open 2024 | 9.11 | 2024.03.21 Yilmazyerli, Mert (6305962) (2526) | ½ | 93.70% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2024.03.20 | Reykjavik Open 2024 | 8.25 | 2024.03.20 Li, Harry (430145) (2107) | 1 | 95.70% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.03.19 | Reykjavik Open 2024 | 7.28 | 2024.03.19 Ptacnikova, Lenka (305650) (2067) | 1 | 94.50% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 | |
| 2024.03.18 | Reykjavik Open 2024 | 6.4 | 2024.03.18 Pultinevicius, Paulius (12809390) (2575) | 0 | 88.20% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2024.03.18 | Reykjavik Open 2024 | 5.23 | 2024.03.18 Pourkashiyan, Atousa (12502014) (2270) | 1 | 98.40% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.03.17 | Reykjavik Open 2024 | 4.37 | 2024.03.17 Gikas, Andreas Basilius (4623509) (2104) | 1 | 94.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.03.16 | Reykjavik Open 2024 | 3.2 | 2024.03.16 Sanal, Vahap (6300545) (2558) | 0 | 87.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.03.16 | Reykjavik Open 2024 | 2.31 | 2024.03.16 Mai, Alexander Oliver (2313391) (2160) | 1 | 94.70% | 1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 | |
| 2024.03.15 | Reykjavik Open 2024 | 1.41 | 2024.03.15 Kolka, David (2308010) (2030) | 1 | 93.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 |