Prepare against Jacek Haja
Poland · World #127,608 classical · FIDE ID 1142429
When preparing against Jacek Haja, expect 1.e4 in 94% of White games. Against 1.e4 the reply is 1...e5 (92% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 35 games by Jacek Haja, covering Apr 2008 to Jul 2026. Below you'll find Jacek Haja's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jacek Haja 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 | 1,653 | 1,796 | Aug 2013 |
| Rapid | 1,746 | 1,796 | May 2013 |
| Blitz | 1,759 | 1,759 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 35 | 11 | 8 | 16 | 31.4% |
| As White | 17 | 6 | 5 | 6 | 35.3% |
| As Black | 18 | 5 | 3 | 10 | 27.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jacek Haja's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jacek Haja's side.
First moves as White (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 16 | 94.1% | 50.0% |
| Nf3 | 1 | 5.9% | 50.0% |
Main lines as White
- 1.e4 — 94% of White games, 50.0% score
- …c5 (38% of these games) — Haja usually continues Nf3 (60.0% score)
- …e5 (25% of these games) — Haja usually continues Nf3 (50.0% score)
- …e6 (13% of these games) — Haja usually continues d4 (50.0% score)
- 1.Nf3 — 6% of White games, 50.0% score
- …c5 (100% of these games) — Haja usually continues c4 (50.0% score)
As Black against 1.e4 (13 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 12 | 92.3% | 33.3% |
| c6 | 1 | 7.7% | 50.0% |
As Black against 1.d4 (5 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 5 | 100.0% | 40.0% |
Jacek Haja's chess games
All 35 games by Jacek Haja in the Chess.ceo database (Apr 2008 - 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: 11 wins, 8 draws, 16 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 3 | 2/0/1 | 66.7% |
| A38 | English Opening: Symmetrical | 1 | 0/1/0 | 0.0% |
| C49 | Four Knights Game: Spanish Variation | 1 | 1/0/0 | 100.0% |
| C02 | French: Advance Variation | 1 | 0/0/1 | 0.0% |
| C10 | French Defense | 1 | 1/0/0 | 100.0% |
| C54 | Italian Game: Giuoco Pianissimo | 1 | 0/0/1 | 0.0% |
| C57 | Italian Game: Two Knights Defense | 1 | 0/1/0 | 0.0% |
| B00 | Nimzowitsch Defense: Scandinavian Variation | 1 | 0/1/0 | 0.0% |
| C01 | Owen Defense | 1 | 1/0/0 | 100.0% |
| C42 | Petrov's Defense | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C50 | Italian Game | 5 | 1/1/3 | 20.0% |
| C27 | Bishop's Opening | 2 | 0/0/2 | 0.0% |
| A52 | Budapest Defense | 2 | 1/0/1 | 50.0% |
| A47 | Queen's Pawn Game | 1 | 1/0/0 | 100.0% |
| C68 | Ruy Lopez: Exchange | 1 | 1/0/0 | 100.0% |
| C78 | Ruy Lopez: Morphy Defense | 1 | 0/0/1 | 0.0% |
| C44 | Scotch Game | 1 | 1/0/0 | 100.0% |
| D15 | Slav Defense | 1 | 0/0/1 | 0.0% |
| A60 | Benoni Defense | 1 | 0/0/1 | 0.0% |
| C34 | Vienna Game | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2008 | Slawomir Frackowiak | 1,991 | 17th Poznan Open B | B73 |
| Jul 2008 | Janusz Weglarz | 1,926 | 17th Poznan Open B | A52 |
| Aug 2012 | Piotr Szybowicz | 1,925 | 65th Kujawsko Pomorskie Open A | A47 |
| Jul 2010 | Waldemar Starzynski | 1,877 | Znin Open | C10 |
| Jan 2021 | Mikolaj Wloch | 1,816 | 4th Chelmno Open | B76 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 17th Poznan Open B | 2008 | 9 | 5 | 1,986 |
| 4th Chelmno Open | 2021 | 9 | 3.5 | 1,680 |
| 65th Kujawsko Pomorskie Open A | 2012 | 8 | 3.5 | 1,851 |
| Znin Open | 2010 | 8 | 3 | 1,808 |
| Lueneburg NSV Rapid Open | 2018 | 1 | 0 | 1,875 |
Interactive opening tree from all 35 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jacek Haja's chess games?
35 games by Jacek Haja, from Apr 2008 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 Jacek Haja has played.
What does Jacek Haja play on the first move as White?
Across 17 games with White in our database, Jacek Haja opens with 1.e4 (94% of games), 1.Nf3 (6% of games). Against 1.e4 as Black, Jacek Haja answers 1...e5 (92% of games), 1...c6 (8% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Jacek Haja play as White?
As White, Jacek Haja's most-played openings in our database are: Sicilian (3 games, 66.7% win rate); English Opening: Symmetrical (1 games, 0.0% win rate); Four Knights Game: Spanish Variation (1 games, 100.0% win rate). The full breakdown of 17 games with White is in the table above.
What openings does Jacek Haja play as Black?
As Black, Jacek Haja most often plays: Italian Game (5 games, 20.0% win rate); Bishop's Opening (2 games, 0.0% win rate); Budapest Defense (2 games, 50.0% win rate). See the table above for the top ten Black openings across 18 games.
What is Jacek Haja's FIDE rating?
Jacek Haja is currently rated 1,653 in classical chess, 1,746 in rapid and 1,759 in blitz. Peak classical rating: 1,796 (Aug 2013).
How many games has Jacek Haja played?
Our database contains 35 games by Jacek Haja, covering Apr 2008 to Jul 2026. Overall record: 11 wins, 8 draws, 16 losses (31.4% win rate).
How do I prepare against Jacek Haja?
35 games by Jacek Haja 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.