Prepare against Oskar Hajek
CM · Czechia · World #5,347 classical · FIDE ID 374512
Our database contains 261 games by Oskar Hajek, covering Aug 2012 to Jul 2026. Below you'll find Oskar Hajek's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Oskar Hajek 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 | 2,264 | 2,281 | Sep 2024 |
| Rapid | 2,217 | 2,218 | Jan 2026 |
| Blitz | 2,166 | 2,166 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 268 | 110 | 58 | 100 | 41.0% |
| As White | 126 | 57 | 23 | 46 | 45.2% |
| As Black | 142 | 53 | 35 | 54 | 37.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Oskar Hajek's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Oskar Hajek's side.
First moves as White (126 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 97 | 77.0% | 52.6% |
| d4 | 21 | 16.7% | 57.1% |
| c4 | 3 | 2.4% | 33.3% |
| Nc3 | 3 | 2.4% | 83.3% |
| b3 | 1 | 0.8% | 100.0% |
| Nf3 | 1 | 0.8% | 100.0% |
Main lines as White
- 1.e4 — 77% of White games, 52.6% score
- …c5 (35% of these games) — Hajek usually continues Nf3 (61.7% score)
- …e5 (26% of these games) — Hajek usually continues Nf3 (46.0% score)
- …e6 (10% of these games) — Hajek usually continues d4 (55.0% score)
- 1.d4 — 17% of White games, 57.1% score
- …Nf6 (71% of these games) — Hajek usually continues Nc3 (54.5% score)
- …d5 (24% of these games) — Hajek usually continues Nc3 (62.5% score)
- …c5 (5% of these games) — Hajek usually continues d5 (100.0% score)
As Black against 1.e4 (67 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d6 | 31 | 46.3% | 54.8% |
| e5 | 14 | 20.9% | 39.3% |
| c5 | 10 | 14.9% | 45.0% |
| c6 | 7 | 10.4% | 35.7% |
| Nf6 | 2 | 3.0% | 50.0% |
| g6 | 1 | 1.5% | 100.0% |
As Black against 1.d4 (49 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 17 | 34.7% | 44.1% |
| d5 | 12 | 24.5% | 41.7% |
| c5 | 9 | 18.4% | 55.6% |
| e6 | 4 | 8.2% | 100.0% |
| d6 | 4 | 8.2% | 75.0% |
| c6 | 2 | 4.1% | 100.0% |
Oskar Hajek's chess games
All 261 games by Oskar Hajek in the Chess.ceo database (Aug 2012 - Jul 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: 110 wins, 58 draws, 100 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B53 | Sicilian | 17 | 9/2/6 | 52.9% |
| D00 | Queen's Pawn Game: Chigorin Variation | 13 | 6/3/4 | 46.2% |
| C06 | French: Tarrasch Variation | 9 | 3/3/3 | 33.3% |
| B30 | Sicilian: Rossolimo | 9 | 5/2/2 | 55.6% |
| B06 | Modern Defense | 6 | 3/2/1 | 50.0% |
| C68 | Ruy Lopez: Exchange | 6 | 2/1/3 | 33.3% |
| C78 | Ruy Lopez: Morphy Defense | 4 | 1/0/3 | 25.0% |
| A45 | Queen's Pawn Game | 3 | 2/0/1 | 66.7% |
| B07 | Pirc Defense | 3 | 2/1/0 | 66.7% |
| C47 | Four Knights Game: Scotch Variation | 3 | 1/1/1 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C41 | Philidor | 28 | 12/9/7 | 42.9% |
| A56 | Benoni Defense | 15 | 6/5/4 | 40.0% |
| C70 | Ruy Lopez: Morphy Defense | 7 | 1/2/4 | 14.3% |
| A46 | Indian Defense | 7 | 3/2/2 | 42.9% |
| D17 | Slav Defense | 6 | 3/0/3 | 50.0% |
| A41 | Queen's Pawn Game | 6 | 3/1/2 | 50.0% |
| B30 | Sicilian | 5 | 3/0/2 | 60.0% |
| A45 | London System | 4 | 2/1/1 | 50.0% |
| A29 | English Opening: Reverse Sicilian | 4 | 2/0/2 | 50.0% |
| B13 | Caro-Kann: Exchange Variation | 4 | 2/0/2 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2021 | Horacio Saldano Dayer | 2,429 | Titled Tue | D94 |
| Jan 2021 | Uurtsaikh Agibileg | 2,413 | Titled Tue | D17 |
| Jan 2021 | Malkhaz Sulashvili | 2,381 | Titled Tue | B12 |
| Dec 2022 | Miroslav Maslik | 2,359 | chT2O-AUT 2223 | B30 |
| Feb 2021 | Marco Dobrikov | 2,311 | Titled Tue | B53 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2024 | 40 | 10 | 2,116 |
| chT2E-CZE 1718 | 2018 | 10 | 5 | 2,138 |
| Ostrava Konik Open | 2014 | 9 | 7.5 | 2,050 |
| Valasska Bystrice Open | 2015 | 9 | 6.5 | 2,161 |
| ch-CZE U20 sf | 2014 | 9 | 4.5 | 2,004 |
| Brno CEZ Open | 2014 | 9 | 5 | 2,089 |
| Jesenik Open A | 2024 | 9 | 7 | 2,386 |
| chT2E-CZE 1920 | 2020 | 9 | 5 | 2,106 |
Interactive opening tree from all 261 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Oskar Hajek's chess games?
261 games by Oskar Hajek, from Aug 2012 to Jul 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 Oskar Hajek has played.
What does Oskar Hajek play on the first move as White?
Across 126 games with White in our database, Oskar Hajek opens with 1.e4 (77% of games), 1.d4 (17% of games), 1.c4 (2% of games). Against 1.e4 as Black, Oskar Hajek answers 1...d6 (46% of games), 1...e5 (21% of games), 1...c5 (15% of games). Against 1.d4: 1...Nf6 (35% of games), 1...d5 (24% of games), 1...c5 (18% of games).
What openings does Oskar Hajek play as White?
As White, Oskar Hajek's most-played openings in our database are: Sicilian (17 games, 52.9% win rate); Queen's Pawn Game: Chigorin Variation (13 games, 46.2% win rate); French: Tarrasch Variation (9 games, 33.3% win rate). The full breakdown of 126 games with White is in the table above.
What openings does Oskar Hajek play as Black?
As Black, Oskar Hajek most often plays: Philidor (28 games, 42.9% win rate); Benoni Defense (15 games, 40.0% win rate); Ruy Lopez: Morphy Defense (7 games, 14.3% win rate). See the table above for the top ten Black openings across 142 games.
What is Oskar Hajek's FIDE rating?
Oskar Hajek is currently rated 2,264 in classical chess, 2,217 in rapid and 2,166 in blitz. Peak classical rating: 2,281 (Sep 2024).
How many games has Oskar Hajek played?
Our database contains 261 games by Oskar Hajek, covering Aug 2012 to Jul 2026. Overall record: 110 wins, 58 draws, 100 losses (41.0% win rate).
How do I prepare against Oskar Hajek?
261 games by Oskar Hajek 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.