Player profile
Kozower, Ethan
Dossier
105 of 107 games analyzed.
Accuracy: 89.6%
Opened c4: 21/46Opened e4: 15/46Opened d4: 6/46Opened Nf3: 4/46
Same-side castling: 78Castled kingside: 77Did not castle: 14Castled queenside: 12Opposite-side castling: 4
Played on the queenside: 34Played in the center: 27Fianchettoed queenside: 26Fianchettoed kingside: 24Played on the kingside: 24
Active pieces: 71Sacrificed material: 67Initiated exchanges: 66Backward pawn: 53Kept the bishop pair: 51Space advantage: 51Isolated pawn: 34Missed tactics: 24Played gambits: 22Avoided exchanges: 18
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 47 games 15W 9D 23L
English Opening 18 games 9W 3D 6L
King's English Variation 5 games 2W 1D 2L
(unspecified)
3 games
1W
1D
1L
Four Knights Variation, Quiet Line
2 games
1W
0D
1L
Anglo-Indian Defense 4 games 2W 1D 1L
Anglo-Grünfeld Variation
2 games
1W
1D
0L
Anti-Anti-Grünfeld
1 game
1W
0D
0L
(unspecified)
1 game
0W
0D
1L
Agincourt Defense 3 games 1W 0D 2L
(unspecified)
1 game
0W
0D
1L
Neo-Catalan Declined
1 game
0W
0D
1L
Wimpy System
1 game
1W
0D
0L
Symmetrical Variation 3 games 2W 1D 0L
Four Knights Variation
3 games
2W
1D
0L
Mikenas-Carls Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Adorjan Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Caro-Kann Defensive System 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Sicilian Defense 9 games 3W 1D 5L
Najdorf Variation 2 games 1W 0D 1L
English Attack
2 games
1W
0D
1L
Nyezhmetdinov-Rossolimo Attack 2 games 1W 0D 1L
Fianchetto Variation
1 game
0W
0D
1L
(unspecified)
1 game
1W
0D
0L
Lasker-Pelikan Variation 1 game 0W 0D 1L
Sveshnikov Variation, Chelyabinsk Variation
1 game
0W
0D
1L
Four Knights Variation 1 game 0W 0D 1L
Cobra Variation
1 game
0W
0D
1L
Taimanov Variation 1 game 0W 1D 0L
Bastrikov Variation
1 game
0W
1D
0L
French Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Moscow Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Caro-Kann Defense 3 games 0W 2D 1L
Panov Attack 1 game 0W 1D 0L
Modern Defense, Mieses Line
1 game
0W
1D
0L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Advance Variation 1 game 0W 1D 0L
Tal Variation
1 game
0W
1D
0L
King's Indian Defense 2 games 0W 1D 1L
Normal Variation 1 game 0W 0D 1L
Rare Defenses
1 game
0W
0D
1L
Semi-Averbakh System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Slav Defense 2 games 0W 0D 2L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Quiet Variation 1 game 0W 0D 1L
Schallopp Defense
1 game
0W
0D
1L
Dutch Defense 2 games 2W 0D 0L
Rubinstein Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Leningrad Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Nimzo-Indian Defense 2 games 0W 0D 2L
Classical Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Normal Variation 1 game 0W 0D 1L
Gligoric System, Exchange Variation
1 game
0W
0D
1L
Four Knights Game 2 games 0W 0D 2L
Scotch Variation Accepted 1 game 0W 0D 1L
Main Line
1 game
0W
0D
1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Catalan Opening 1 game 0W 1D 0L
Closed 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Gambit Declined 1 game 0W 0D 1L
Ragozin Defense 1 game 0W 0D 1L
Alekhine Variation
1 game
0W
0D
1L
French Defense 1 game 0W 1D 0L
Classical Variation 1 game 0W 1D 0L
Tartakower Variation
1 game
0W
1D
0L
Benoni Defense 1 game 0W 0D 1L
Knight's Tour Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Benko Gambit Accepted 1 game 1W 0D 0L
King Walk Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 1 game 0W 0D 1L
Colle System 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Three Knights Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
As Black 58 games 13W 17D 27L
Sicilian Defense 12 games 0W 7D 4L
Four Knights Variation 8 games 0W 5D 2L
(unspecified)
5 games
0W
3D
2L
Exchange Variation
3 games
0W
2D
0L
Nyezhmetdinov-Rossolimo Attack 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Alapin Variation 1 game 0W 1D 0L
Smith-Morra Declined
1 game
0W
1D
0L
Keres Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Italian Game 6 games 3W 2D 1L
Two Knights Defense 4 games 1W 2D 1L
Modern Bishop's Opening
4 games
1W
2D
1L
Scotch Invitation Declined 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
English Opening 6 games 1W 3D 2L
Symmetrical Variation 4 games 0W 3D 1L
Three Knights, Fianchetto Variation
2 games
0W
2D
0L
Four Knights Variation
1 game
0W
0D
1L
Ultra-Symmetrical Variation
1 game
0W
1D
0L
King's English Variation 1 game 1W 0D 0L
Taimanov Variation
1 game
1W
0D
0L
Anglo-Indian Defense 1 game 0W 0D 1L
Queen's Knight Variation
1 game
0W
0D
1L
Nimzo-Indian Defense 6 games 1W 2D 3L
Classical Variation 3 games 1W 1D 1L
(unspecified)
2 games
0W
1D
1L
Keres Defense
1 game
1W
0D
0L
Rubinstein System 1 game 0W 0D 1L
Rubinstein Variation
1 game
0W
0D
1L
Kmoch Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Normal Variation 1 game 0W 0D 1L
Classical Defense
1 game
0W
0D
1L
Ruy Lopez 5 games 1W 1D 3L
Open 3 games 0W 1D 2L
Main Line
1 game
0W
0D
1L
Dilworth Variation
1 game
0W
1D
0L
(unspecified)
1 game
0W
0D
1L
Morphy Defense 1 game 1W 0D 0L
Wormald Attack
1 game
1W
0D
0L
Cozio Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Four Knights Game 4 games 0W 1D 3L
(unspecified) 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Spanish Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Scotch Variation 1 game 0W 0D 1L
Schmid Defense
1 game
0W
0D
1L
Queen's Indian Defense 4 games 0W 1D 3L
Fianchetto Variation 2 games 0W 0D 2L
(unspecified)
1 game
0W
0D
1L
Kramnik Variation
1 game
0W
0D
1L
Kasparov Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Kasparov-Petrosian Variation 1 game 0W 1D 0L
Classical Variation
1 game
0W
1D
0L
Indian Defense 4 games 2W 0D 2L
Dzindzi-Indian Defense 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Knights Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Accelerated London System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Grünfeld Defense 1 game 0W 0D 1L
Opocensky Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Petrov's Defense 1 game 0W 0D 1L
Damiano Variation 1 game 0W 0D 1L
Kholmov Gambit
1 game
0W
0D
1L
Catalan Opening 1 game 0W 0D 1L
Closed 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Three Knights Opening 1 game 0W 0D 1L
Schlechter Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Bishop's Opening 1 game 1W 0D 0L
Vienna Hybrid 1 game 1W 0D 0L
Hromádka Variation
1 game
1W
0D
0L
King's Knight Opening 1 game 1W 0D 0L
Konstantinopolsky 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Scotch Game 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Trompowsky Attack 1 game 0W 0D 1L
Classical Defense 1 game 0W 0D 1L
Big Center Variation
1 game
0W
0D
1L
King's Indian Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Bird Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Blunders Top 4 of 479
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 107 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.09.16 | Round 2: Kozower, Ethan - Girsh, Daniel | 2.3 | 2026.09.16 Girsh, Daniel (30949190) (2373) | 0 | 86.90% | 1. c4 Nf6 2. Nc3 g6 3. e4 d6 | |
| 2026.09.06 | Round 5: Kozower, Ethan - Kevin Stern | 5.3 | 2026.09.06 Kevin Stern | ½ | 98.40% | 1. c4 e6 2. g3 d5 3. Bg2 Nf6 | |
| 2026.09.05 | Round 3: Samant Sen - Kozower, Ethan | 1.3 | 2026.09.05 Samant Sen | 0 | 87.80% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2026.09.05 | Round 2: Kozower, Ethan - Bhoopathi, Rishith | 2.2 | 2026.09.05 Bhoopathi, Rishith (39940870) (2120) | ½ | 98.00% | 1. c4 c6 2. e4 d5 3. exd5 cxd5 | |
| 2026.09.04 | Round 1: Brain, Logan - Kozower, Ethan | 3.2 | 2026.09.04 Brain, Logan (30901847) (2111) | 0 | - | ||
| 2026.09.03 | Round 4: Wu, Winsley - Kozower, Ethan | 4.1 | 2026.09.03 Wu, Winsley (39941981) (2058) | 1 | 91.40% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 | |
| 2026.08.06 | Round 5: Bobadilla Viera, Jorge Samuel - Kozower, Ethan | 5.4 | 2026.08.06 Bobadilla Viera, Jorge Samuel (3906353) (2280) | 0 | 82.80% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2026.08.03 | Round 2: Kozower, Ethan - Utsab Chatterjee | 2.5 | 2026.08.03 Utsab Chatterjee (46609148) (2353) | 0 | 87.30% | 1. c4 e6 2. g3 d5 3. Bg2 Nf6 | |
| 2026.07.12 | Round 9: Kozower, Ethan - Barbosa, Oliver | 9.3 | 2026.07.12 Barbosa, Oliver (5201640) (2367) | 0 | 63.70% | 1. c4 c6 2. Nf3 d5 3. d4 Nf6 | |
| 2026.07.11 | Round 8: Miller, Rachel - Kozower, Ethan | 8.3 | 2026.07.11 Miller, Rachel (7401302) (2010) | 1 | 94.40% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 | |
| 2026.07.11 | Round 7: Kozower, Ethan - Lyutsinger, Iren | 7.4 | 2026.07.11 Lyutsinger, Iren (34425969) (2258) | 1 | 99.00% | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.07.10 | Round 6: Wongso, Steve - Kozower, Ethan | 6.2 | 2026.07.10 Wongso, Steve (30939020) (2227) | 0 | 88.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.07.09 | Round 5: Kozower, Ethan - Venkatesh, Narayan | 5.5 | 2026.07.09 Venkatesh, Narayan (30987881) (2270) | 0 | 88.50% | 1. c4 e5 2. d3 Nf6 3. Nf3 Nc6 | |
| 2026.07.08 | Round 3: Hoffman, Luc - Kozower, Ethan | 3.5 | 2026.07.08 Hoffman, Luc (30964644) (2182) | 0 | 87.70% | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 | |
| 2026.07.08 | Round 2: Kozower, Ethan - Dushyant Sharma | 2.2 | 2026.07.08 Dushyant Sharma (25065130) (2353) | 0 | 90.20% | 1. c4 e5 2. e3 Nf6 3. Nc3 Nc6 | |
| 2026.07.07 | Round 1: Paragua, Mark - Kozower, Ethan | 1.4 | 2026.07.07 Paragua, Mark (5201241) (2403) | ½ | 90.20% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.07.02 | Round 4: Titus, Andrew - Kozower, Ethan | 4.1 | 2026.07.02 Titus, Andrew (2059770) (2239) | ½ | 92.40% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2026.06.25 | Round 1: Bartell, Thomas - Kozower, Ethan | 1.19 | 2026.06.25 Bartell, Thomas (2017849) (2336) | 0 | 88.00% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2026.05.17 | Round 5: Kozower, Ethan - Jandhyala, Yegna Sairam | 5.3 | 2026.05.17 Jandhyala, Yegna Sairam (39938778) (1827) | ½ | 96.70% | 1. c4 e5 2. e3 Nf6 3. Nc3 Bb4 | |
| 2026.05.17 | Round 4: Kozower, Ethan - Derek Zhang | 4.4 | 2026.05.17 Derek Zhang | 1 | 90.10% | 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 | |
| 2026.05.16 | Round 3: Luc William Crim Hoffman - Kozower, Ethan | 3.2 | 2026.05.16 Luc William Crim Hoffman | 0 | 86.90% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.05.16 | Round 2: Kozower, Ethan - Tran, Timothy | 2.7 | 2026.05.16 Tran, Timothy (39975878) (1669) | 1 | 93.80% | 1. c4 e6 2. Nc3 f5 3. d4 Nf6 | |
| 2026.05.15 | Round 1: Dubey, Shiv - Kozower, Ethan | 1.7 | 2026.05.15 Dubey, Shiv (39910105) (1751) | 1 | 94.30% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.04.22 | Round 4: Bryan A Weisz - Kozower, Ethan | 4.2 | 2026.04.22 Bryan A Weisz | ½ | 95.90% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.04.22 | Round 3: Kozower, Ethan - William Alexander Aepli | 3.3 | 2026.04.22 William Alexander Aepli | 1 | 98.00% | 1. c4 e6 2. Nc3 Nf6 3. e4 d5 | |
| 2026.04.22 | Round 2: Miller, Rachel - Kozower, Ethan | 2.3 | 2026.04.22 Miller, Rachel (7401302) (2001) | ½ | 93.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.04.21 | Round 1: Kozower, Ethan - Alec Hyunmook Choi | 1.5 | 2026.04.21 Alec Hyunmook Choi | 1 | 93.90% | 1. c4 e5 2. g3 Nc6 3. Bg2 f5 | |
| 2026.03.08 | Round 5: Doddapaneni, Viyaan Krishna - Kozower, Ethan | 5.13 | 2026.03.08 Doddapaneni, Viyaan Krishna (39937933) (2009) | ½ | 93.00% | 1. c4 c5 2. g3 g6 3. Bg2 Bg7 | |
| 2026.03.07 | Round 3: Zeutzius, Jonas Michael - Kozower, Ethan | 3.15 | 2026.03.07 Zeutzius, Jonas Michael (39999777) (2015) | 0 | 88.50% | 1. d4 Nf6 2. Nf3 e6 3. c4 b6 | |
| 2026.03.05 | Round 2: Kozower, Ethan - Brodsky, David | 2.1 | 2026.03.05 Brodsky, David (2073250) (2505) | 0 | 85.10% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.02.13 | Round 1: Delgado Ramirez, Neuris - Kozower, Ethan | 1.5 | 2026.02.13 Delgado Ramirez, Neuris (3503631) (2511) | 0 | 87.80% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 | |
| 2025.12.16 | Round 5: Bora, Safal - Kozower, Ethan | 5.4 | 2025.12.16 Bora, Safal (2066149) (2501) | 0 | - | 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 | |
| 2025.12.14 | Round 4: Kozower, Ethan - Wu, Winsley | 4.5 | 2025.12.14 Wu, Winsley (39941981) (1925) | 1 | 88.00% | 1. c4 e5 2. e3 Nf6 3. Nc3 Nc6 | |
| 2025.12.13 | Round 3: Stancil, Kimani - Kozower, Ethan | 3.7 | 2025.12.13 Stancil, Kimani (2018594) (1924) | 1 | 88.40% | 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 | |
| 2025.12.13 | Round 1: Berg, George - Kozower, Ethan | 1.8 | 2025.12.13 Berg, George (2007240) (1867) | 0 | 87.40% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.11.16 | Round 5: Connor Wang - Kozower, Ethan | 5.10 | 2025.11.16 Connor Wang | ½ | 91.10% | 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 | |
| 2025.11.16 | Round 4: Kozower, Ethan - Zhang, Andrew | 4.10 | 2025.11.16 Zhang, Andrew (39940896) (1951) | ½ | 98.60% | 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 | |
| 2025.11.15 | Round 3: Brodsky, David - Kozower, Ethan | 3.3 | 2025.11.15 Brodsky, David (2073250) (2515) | 0 | 80.10% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2025.11.15 | Round 2: Sarkar, Justin - Kozower, Ethan | 2.5 | 2025.11.15 Sarkar, Justin (2010011) (2274) | ½ | 96.80% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2025.10.22 | Round 2: Kozower, Ethan - Evan | 2.4 | 2025.10.22 Evan | 0 | 87.90% | 1. c4 c6 2. Nf3 d5 3. e3 Nf6 | |
| 2025.10.18 | Round 2: Sommerstein, Adrian Harrison - Kozower, Ethan | 2.4 | 2025.10.18 Sommerstein, Adrian Harrison (39952274) (1797) | 1 | 85.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.10.17 | Round 3: Kozower, Ethan - Das, Aditeya | 3.1 | 2025.10.17 Das, Aditeya (30975972) (2248) | 0 | 87.90% | 1. c4 e6 2. Nc3 d5 3. d4 Nf6 | |
| 2025.10.17 | Round 1: Kozower, Ethan - Bernstein, Charles B | 1.4 | 2025.10.17 Bernstein, Charles B (39970639) (1664) | 1 | 53.80% | 1. c4 c5 2. Nc3 Nf6 3. Nf3 Nc6 | |
| 2025.10.05 | Round 5: Luc William Crim Hoffman - Kozower, Ethan | 5.8 | 2025.10.05 Luc William Crim Hoffman | 1 | 98.80% | 1. e4 e5 2. Nf3 Nc6 3. g3 Nf6 | |
| 2025.10.04 | Round 3: Kozower, Ethan - Lee, Rohan | 3.7 | 2025.10.04 Lee, Rohan (39927865) (1878) | ½ | 86.50% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2025.06.22 | Round 5: Kylan Huang - Kozower, Ethan | 5.3 | 2025.06.22 Kylan Huang | ½ | 96.90% | 1. e4 c5 2. c3 Nf6 3. e5 Nd5 | |
| 2025.06.21 | Round 3: Goel, Raben - Kozower, Ethan | 3.6 | 2025.06.21 Goel, Raben (30996465) (1845) | 1 | 90.20% | 1. c4 e5 2. Nc3 Nc6 3. g3 g6 | |
| 2025.06.20 | Round 1: Solomon, Ciprian - Kozower, Ethan | 1.5 | 2025.06.20 Solomon, Ciprian (30942110) (1830) | ½ | 90.90% | 1. c4 c5 2. Nc3 Nc6 3. g3 g6 | |
| 2025.06.08 | Round 5: Kozower, Ethan - Yu, Vincent Zhiwen | 5.8 | 2025.06.08 Yu, Vincent Zhiwen (39908810) (1874) | 1 | 91.60% | 1. c4 g6 2. e4 e5 3. d4 Nf6 | |
| 2025.06.08 | Round 4: Hebbar, Eshaan - Kozower, Ethan | 4.3 | 2025.06.08 Hebbar, Eshaan (30974690) (2163) | 0 | 88.30% | 1. d4 Nf6 2. c4 e6 3. Nf3 a6 | |
| 2025.06.07 | Round 3: Kyle Dong - Kozower, Ethan | 3.5 | 2025.06.07 Kyle Dong | ½ | 89.90% | 1. c4 c5 2. g3 g6 3. Bg2 Bg7 | |
| 2025.06.07 | Round 2: Kozower, Ethan - Rama, Tejas | 2.4 | 2025.06.07 Rama, Tejas (30907381) (2234) | ½ | 82.60% | 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 | |
| 2025.05.18 | Round 5: Kozower, Ethan - Bonin, Jay | 5.3 | 2025.05.18 Bonin, Jay (2000644) (2091) | ½ | 94.40% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2025.05.18 | Round 4: Kozower, Ethan - Berg, George | 4.7 | 2025.05.18 Berg, George (2007240) (1842) | 1 | 92.30% | 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 | |
| 2025.05.17 | Round 3: Liang, Melanie - Kozower, Ethan | 3.9 | 2025.05.17 Liang, Melanie (39947777) (1596) | 1 | 92.90% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2025.05.16 | Round 1: Zhang, Andrew - Kozower, Ethan | 1.4 | 2025.05.16 Zhang, Andrew (39940896) (1848) | 0 | 88.80% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2025.04.06 | Round 4: Kozower, Ethan - Marzouq, Chowdhury | 4.10 | 2025.04.06 Marzouq, Chowdhury (10225552) (1983) | 0 | - | 1. c4 c6 2. Nf3 Nf6 3. Nc3 d5 | |
| 2025.04.04 | Round 1: Hoffman, Luc - Kozower, Ethan | 1.5 | 2025.04.04 Hoffman, Luc (30964644) (2211) | 0 | 90.70% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2025.03.18 | Round 1: Kozower, Ethan - Zhu, Linxi | 1.5 | 2025.03.18 Zhu, Linxi (39900428) (2027) | 0 | 83.00% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2025.02.09 | Round 5: Kozower, Ethan - Hebbar, Eshaan | 5.4 | 2025.02.09 Hebbar, Eshaan (30974690) (2150) | 0 | 84.90% | 1. c4 Nf6 2. g3 g6 3. Nf3 Bg7 | |
| 2025.02.09 | Round 4: Muthukumaran, Gurru - Kozower, Ethan | 4.4 | 2025.02.09 Muthukumaran, Gurru (30977053) (1881) | ½ | 96.00% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2025.02.08 | Round 3: Kozower, Ethan - Hoffman, Luc | 3.1 | 2025.02.08 Hoffman, Luc (30964644) (2124) | 0 | 88.00% | 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 | |
| 2025.02.08 | Round 2: Kozower, Ethan - Panico, Nick | 2.4 | 2025.02.08 Panico, Nick (2026724) (1942) | 1 | 92.70% | 1. c4 f5 2. g3 Nf6 3. d4 g6 | |
| 2025.02.07 | Round 1: Colwell, Andrew - Kozower, Ethan | 1.8 | 2025.02.07 Colwell, Andrew (30964075) (1857) | 1 | 97.20% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.12.17 | Round 1: Putnam, Liam - Kozower, Ethan | 1.5 | 2024.12.17 Putnam, Liam (30938279) (2189) | 0 | 79.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2024.12.15 | Round 7: Kozower, Ethan - Klenoff, Caleb | 7.12 | 2024.12.15 Klenoff, Caleb (30957605) (2063) | 0 | 86.90% | 1. d4 Nf6 2. c4 c5 3. d5 e6 | |
| 2024.12.13 | Round 2: Hoffman, Luc - Kozower, Ethan | 2.11 | 2024.12.13 Hoffman, Luc (30964644) (2078) | 1 | 96.40% | 1. d4 Nf6 2. Nf3 e6 3. g3 b5 | |
| 2024.12.12 | Round 1: Kozower, Ethan - Lin, Bryan Enming | 1.8 | 2024.12.12 Lin, Bryan Enming (30987121) (2359) | 0 | 84.80% | 1. e4 c5 2. Ne2 e6 3. Nbc3 Nc6 | |
| 2024.12.07 | Round 3: Bonin, Jay - Kozower, Ethan | 3.4 | 2024.12.07 Bonin, Jay (2000644) (2102) | 0 | 90.00% | 1. d4 Nf6 2. Bg5 e6 3. e4 h6 | |
| 2024.12.07 | Round 2: Kozower, Ethan - Sarkar, Justin | 2.1 | 2024.12.07 Sarkar, Justin (2010011) (2287) | 0 | 90.00% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.12.06 | Round 1: Kozower, Ethan - Berg, George | 1.5 | 2024.12.06 Berg, George (2007240) (1892) | 1 | 96.90% | 1. d4 Nf6 2. c4 c5 3. d5 b5 | |
| 2024.11.03 | Round 5: Ayyappan, Santhosh - Kozower, Ethan | 5.5 | 2024.11.03 Ayyappan, Santhosh (30979870) (1999) | ½ | 92.80% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2024.11.02 | Round 3: Tadevosyan, Levon - Kozower, Ethan | 3.7 | 2024.11.02 Tadevosyan, Levon (13316850) (1867) | 0 | 87.70% | 1. e4 c5 2. Ne2 Nf6 3. Nbc3 Nc6 | |
| 2024.11.01 | Round 1: Li, Aiden Linyuan - Kozower, Ethan | 1.9 | 2024.11.01 Li, Aiden Linyuan (39917487) (1877) | 0 | 79.20% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 | |
| 2024.10.13 | Round 4: Tanenbaum, Zachary - Kozower, Ethan | 4.10 | 2024.10.13 Tanenbaum, Zachary (2060850) (2263) | 0 | 81.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2024.10.13 | Round 3: Kozower, Ethan - Tanenbaum, Zachary | 3.10 | 2024.10.13 Tanenbaum, Zachary (2060850) (2263) | 0 | 97.20% | 1. d4 d5 2. Nf3 e6 3. e3 Nf6 | |
| 2024.10.12 | Round 4: Adewumi, Tanitoluwa - Kozower, Ethan | 4.8 | 2024.10.12 Adewumi, Tanitoluwa (30966396) (2349) | 0 | 77.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 a6 | |
| 2024.10.12 | Round 2: Tang, Andrew - Kozower, Ethan | 2.9 | 2024.10.12 Tang, Andrew (2059630) (2527) | 0 | 92.70% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.09.18 | Round 4: Ling, Chenxuan - Kozower, Ethan | 4.3 | 2024.09.18 Ling, Chenxuan (30983118) (1981) | ½ | 97.60% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.09.07 | Round 3: Venkatesh, Narayan - Kozower, Ethan | 3.10 | 2024.09.07 Venkatesh, Narayan (30987881) (2148) | 0 | 90.00% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.09.07 | Round 2: Kozower, Ethan - Brain, Logan | 2.1 | 2024.09.07 Brain, Logan (30901847) (2118) | 0 | 90.70% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2024.09.06 | Round 1: Lee, Rohan - Kozower, Ethan | 1.6 | 2024.09.06 Lee, Rohan (39927865) (1873) | 1 | 97.90% | 1. Nf3 Nf6 2. g3 d5 3. Bg2 Bf5 | |
| 2024.08.17 | Round 3: Tao, Jeremy - Kozower, Ethan | 3.2 | 2024.08.17 Tao, Jeremy (39938697) (1733) | ½ | 80.10% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.08.17 | Round 2: Kozower, Ethan - Doddapaneni, Viyaan Krishna | 2.3 | 2024.08.17 Doddapaneni, Viyaan Krishna (39937933) (1795) | 1 | 98.10% | 1. Nf3 Nf6 2. b3 e6 3. Bb2 d5 | |
| 2024.06.09 | Round 5: Kozower, Ethan - Berg, George | 2024.06.09 Berg, George (2007240) (1795) | 1 | 90.40% | 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 | ||
| 2024.06.09 | Round 4: Chan, Kyle - Maahir Patel | 2024.06.09 Chan, Kyle (39905497) (1869) | ½ | 95.50% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2024.06.09 | Round 4: Derek Chen - Kozower, Ethan | 2024.06.09 Derek Chen | ½ | 98.90% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| 2024.06.08 | Round 3: Kozower, Ethan - Kyle Dong | 2024.06.08 Kyle Dong | 0 | 83.40% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 | ||
| 2024.06.08 | Round 2: Rosenthal, Max Manuel - Kozower, Ethan | 2024.06.08 Rosenthal, Max Manuel (34603913) (2012) | ½ | 93.50% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| 2024.06.07 | Round 1: Kozower, Ethan - Daniel Johnston | 2024.06.07 Daniel Johnston | ½ | 76.90% | 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 | ||
| 2024.05.03 | Round 1: Kozower, Ethan - Nkululeko, Nkosi | 2024.05.03 Nkululeko, Nkosi (39910016) (1987) | 0 | 90.60% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 | ||
| 2024.04.21 | Round 5: Panico, Nick - Kozower, Ethan | 2024.04.21 Panico, Nick (2026724) (1952) | 1 | 93.60% | 1. f4 e6 2. Nf3 Nf6 3. g3 d5 | ||
| 2024.04.21 | Round 4: Kozower, Ethan - Paruchuri, Naveen | 2024.04.21 Paruchuri, Naveen (30964636) (1866) | 1 | 97.90% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 | ||
| 2024.04.20 | Round 2: Stancil, Kimani - Kozower, Ethan | 2024.04.20 Stancil, Kimani (2018594) (1873) | 0 | 85.70% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| 2024.04.20 | Round 1: Kozower, Ethan - Singh, Ian Avery | 2024.04.20 Singh, Ian Avery (39902676) (1721) | 1 | 94.60% | 1. e4 c5 2. Nf3 e6 3. g3 a6 | ||
| 2024.04.14 | Round 5: Ayyappan, Santhosh - Kozower, Ethan | 2024.04.14 Ayyappan, Santhosh (30979870) (1922) | 0 | 90.60% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | ||
| 2024.04.12 | Round 1: Kozower, Ethan - Putnam, Liam | 2024.04.12 Putnam, Liam (30938279) (2323) | 0 | 90.10% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | ||
| 2024.03.31 | 16 Annual Open at Foxwoods | 9.33 | 2024.03.31 Slatin, David W (2018810) (2031) | 0 | 82.70% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2024.03.31 | 16 Annual Open at Foxwoods | 8.36 | 2024.03.31 Manon-og, Ramon Jr. (5200776) (1970) | 0 | 80.20% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.03.01 | Round 1: John Hughes - Kozower, Ethan | 2024.03.01 Hughes, John L (2046105) (2190) | 0 | 92.10% | 1. c4 Nf6 2. Nc3 c5 3. e4 Nc6 | ||
| Round 1: Kozower, Ethan - Jacobson, Aaron | 1.1 | Jacobson, Aaron (2089912) (2365) | 0 | 89.00% | 1. c4 e5 2. e3 Nf6 3. Nc3 Nc6 | ||
| 2024.02.02 | Round 1: Ethan Kozower - Leif Pressman | 2024.02.02 Leif Pressman | 0 | 90.40% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | ||
| 2024.01.21 | Round 5: Ethan Kozower - Jay Bonin | 2024.01.21 Jay Bonin | 0 | 78.10% | 1. e4 c6 2. d4 a6 3. Nd2 d5 | ||
| 2024.01.21 | Round 4: Henry Burton - Ethan Kozower | 2024.01.21 Henry Burton | * | 91.40% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2024.01.20 | Round 3: Ethan Kozower - Luc Hoffman | 2024.01.20 Luc Hoffman | ½ | 86.10% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | ||
| 2024.01.20 | Round 2: Raben Goel - Ethan Kozower | 2024.01.20 Raben Goel | 1 | 94.30% | 1. d4 Nf6 2. Bf4 b6 3. Nf3 e6 | ||
| 2023.03.31 | Round 1: Ethan Kozower - Arthur Guo | 2023.03.31 Arthur Guo | 0 | 89.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 |