Prepare against Ethan Kozower
United States · World #19,966 classical · FIDE ID 30947227
When preparing against Ethan Kozower, expect 1.c4 in 42% of White games. Against 1.e4 the reply is 1...e5 (64% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 53 games by Ethan Kozower, covering Jan 2018 to Aug 2026. Below you'll find Ethan Kozower's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Ethan Kozower before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 2,058 | 2,110 | Apr 2026 |
| Rapid | 1,947 | 1,983 | Mar 2025 |
| Blitz | 1,840 | 1,912 | Mar 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 53 | 14 | 9 | 30 | 26.4% |
| As White | 24 | 6 | 3 | 15 | 25.0% |
| As Black | 29 | 8 | 6 | 15 | 27.6% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Ethan Kozower's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Ethan Kozower's side.
First moves as White (24 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 10 | 41.7% | 35.0% |
| e4 | 6 | 25.0% | 16.7% |
| Nf3 | 4 | 16.7% | 25.0% |
| d4 | 4 | 16.7% | 50.0% |
Main lines as White
- 1.c4 — 42% of White games, 35.0% score
- …e6 (40% of these games) — Kozower usually continues Nc3 (66.7% score)
- …e5 (40% of these games) — Kozower usually continues e3 (16.7% score)
- …c6 (10% of these games) — Kozower usually continues Nf3 (0.0% score)
- 1.e4 — 25% of White games, 16.7% score
- …c5 (83% of these games) — Kozower usually continues Nf3 (25.0% score)
- …e5 (17% of these games) — Kozower usually continues Nf3 (0.0% score)
As Black against 1.e4 (14 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 9 | 64.3% | 50.0% |
| c5 | 5 | 35.7% | 10.0% |
As Black against 1.d4 (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 11 | 100.0% | 31.8% |
Ethan Kozower's chess games
All 53 games by Ethan Kozower in the Chess.ceo database (Jan 2018 - Aug 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 14 wins, 9 draws, 30 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A20 | English Opening: Reverse Sicilian | 4 | 0/1/3 | 0.0% |
| D37 | Indian Defense | 4 | 1/1/2 | 25.0% |
| A13 | English Opening | 3 | 1/1/1 | 33.3% |
| D13 | Slav Defense | 2 | 1/0/1 | 50.0% |
| B75 | Sicilian: Najdorf | 2 | 0/0/2 | 0.0% |
| A61 | Benoni Defense | 2 | 1/0/1 | 50.0% |
| A14 | English Opening: Neo-Catalan | 1 | 0/0/1 | 0.0% |
| A07 | Réti Opening | 1 | 0/0/1 | 0.0% |
| B45 | Sicilian: Four Knights | 1 | 0/0/1 | 0.0% |
| B51 | Sicilian: Moscow Variation | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E42 | Nimzo-Indian: Rubinstein System | 3 | 1/0/2 | 33.3% |
| B42 | Sicilian | 3 | 0/1/2 | 0.0% |
| E02 | Catalan | 3 | 1/0/2 | 33.3% |
| C80 | Ruy Lopez: Open | 2 | 0/1/1 | 0.0% |
| E12 | Queen's Indian Defense | 2 | 1/0/1 | 50.0% |
| C55 | Italian Game | 2 | 1/1/0 | 50.0% |
| C50 | Italian Game: Scotch Gambit | 1 | 1/0/0 | 100.0% |
| E32 | Nimzo-Indian: Classical Variation | 1 | 0/1/0 | 0.0% |
| C42 | Petrov's Defense | 1 | 0/0/1 | 0.0% |
| D38 | Queen's Gambit Declined: Ragozin Defense | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2025 | D Aaron | 2,276 | 125th US Open | D35 |
| Jul 2026 | Lyutsinger,Iren | 2,258 | Marshall Summer Inv IMB | A15 |
| Dec 2024 | Luc Hoffman | 2,078 | 108th Edward Lasker Mem | A46 |
| Jul 2026 | Miller,Rachel | 2,010 | Marshall Summer Inv IMB | C50 |
| Jun 2020 | Derin Goktepe | 1,930 | Emerald City Open | E52 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| PNWCC Online Masters WOO | 2020 | 9 | 3.5 | 1,705 |
| Marshall Summer Inv IMB | 2026 | 9 | 3 | 2,123 |
| 125th US Open | 2025 | 6 | 4 | 2,126 |
| Emerald City Open | 2020 | 5 | 2.5 | 1,697 |
| Marshall May Under 2400 | 2026 | 3 | 2 | 1,882 |
| New York Marshall CC Open B | 2024 | 3 | 1 | 1,913 |
| 108th Edward Lasker Mem | 2024 | 3 | 1 | 2,033 |
| 2026 Marshall Premier FIDE | March | 2026 | 3 | 0.5 | 1,909 |
Interactive opening tree from all 53 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Ethan Kozower's chess games?
53 games by Ethan Kozower, from Jan 2018 to Aug 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Ethan Kozower has played.
What does Ethan Kozower play on the first move as White?
Across 24 games with White in our database, Ethan Kozower opens with 1.c4 (42% of games), 1.e4 (25% of games), 1.Nf3 (17% of games). Against 1.e4 as Black, Ethan Kozower answers 1...e5 (64% of games), 1...c5 (36% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Ethan Kozower play as White?
As White, Ethan Kozower's most-played openings in our database are: English Opening: Reverse Sicilian (4 games, 0.0% win rate); Indian Defense (4 games, 25.0% win rate); English Opening (3 games, 33.3% win rate). The full breakdown of 24 games with White is in the table above.
What openings does Ethan Kozower play as Black?
As Black, Ethan Kozower most often plays: Nimzo-Indian: Rubinstein System (3 games, 33.3% win rate); Sicilian (3 games, 0.0% win rate); Catalan (3 games, 33.3% win rate). See the table above for the top ten Black openings across 29 games.
What is Ethan Kozower's FIDE rating?
Ethan Kozower is currently rated 2,058 in classical chess, 1,947 in rapid and 1,840 in blitz. Peak classical rating: 2,110 (Apr 2026).
How many games has Ethan Kozower played?
Our database contains 53 games by Ethan Kozower, covering Jan 2018 to Aug 2026. Overall record: 14 wins, 9 draws, 30 losses (26.4% win rate).
How do I prepare against Ethan Kozower?
53 games by Ethan Kozower reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.