Prepare against Martin Ondrus
FM · Slovakia · World #7,382 classical · FIDE ID 14913330
Our database contains 246 games by Martin Ondrus, covering Oct 2006 to Jul 2026. Below you'll find Martin Ondrus's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Martin Ondrus 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 | 2,217 | 2,320 | Mar 2015 |
| Rapid | 2,350 | 2,359 | Jun 2026 |
| Blitz | 2,195 | 2,261 | Dec 2017 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 246 | 90 | 76 | 80 | 36.6% |
| As White | 124 | 51 | 42 | 31 | 41.1% |
| As Black | 122 | 39 | 34 | 49 | 32.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Martin Ondrus's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Martin Ondrus's side.
First moves as White (124 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 116 | 93.5% | 59.1% |
| d4 | 4 | 3.2% | 50.0% |
| g3 | 2 | 1.6% | 50.0% |
| Nf3 | 2 | 1.6% | 25.0% |
Main lines as White
- 1.e4 — 94% of White games, 59.1% score
- …c5 (46% of these games) — Ondrus usually continues Nf3 (54.7% score)
- …e6 (16% of these games) — Ondrus usually continues d4 (67.6% score)
- …e5 (12% of these games) — Ondrus usually continues Nf3 (50.0% score)
- 1.d4 — 3% of White games, 50.0% score
- …Nf6 (50% of these games) — Ondrus usually continues c4 (100.0% score)
- …d5 (25% of these games) — Ondrus usually continues c4 (50.0% score)
- …c6 (25% of these games) — Ondrus usually continues Nf3 (50.0% score)
As Black against 1.e4 (72 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 62 | 86.1% | 46.0% |
| e5 | 5 | 6.9% | 50.0% |
| c6 | 2 | 2.8% | 0.0% |
| d6 | 1 | 1.4% | 0.0% |
| Nc6 | 1 | 1.4% | 0.0% |
| g6 | 1 | 1.4% | 100.0% |
As Black against 1.d4 (35 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 17 | 48.6% | 47.1% |
| d5 | 15 | 42.9% | 43.3% |
| g6 | 3 | 8.6% | 66.7% |
Martin Ondrus's chess games
All 246 games by Martin Ondrus in the Chess.ceo database (Oct 2006 - 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: 90 wins, 76 draws, 80 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 17 | 6/6/5 | 35.3% |
| B32 | Sicilian | 16 | 4/6/6 | 25.0% |
| C07 | French: Tarrasch Variation | 15 | 8/5/2 | 53.3% |
| B06 | Modern Defense | 8 | 4/2/2 | 50.0% |
| B80 | Sicilian: Scheveningen | 6 | 4/1/1 | 66.7% |
| B35 | Sicilian: Accelerated Dragon | 5 | 1/2/2 | 20.0% |
| C45 | Scotch Game | 4 | 1/1/2 | 25.0% |
| B01 | Scandinavian Defense: Main Line | 4 | 0/2/2 | 0.0% |
| B48 | Sicilian: Taimanov | 4 | 3/0/1 | 75.0% |
| C47 | Four Knights Game: Scotch Variation | 3 | 1/0/2 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 28 | 9/6/13 | 32.1% |
| D45 | Slav Defense | 11 | 3/2/6 | 27.3% |
| B53 | Sicilian | 8 | 2/2/4 | 25.0% |
| D78 | Indian Defense | 7 | 1/3/3 | 14.3% |
| B23 | Sicilian: Closed | 5 | 1/2/2 | 20.0% |
| B51 | Sicilian: Moscow Variation | 5 | 2/1/2 | 40.0% |
| B22 | Sicilian: Alapin | 5 | 3/1/1 | 60.0% |
| B35 | Sicilian: Accelerated Dragon | 4 | 1/1/2 | 25.0% |
| A70 | Benoni Defense | 4 | 0/3/1 | 0.0% |
| D35 | Semi-Slav Defense | 3 | 1/2/0 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Apr 2018 | Milan Pacher | 2,522 | ch-SVK rapid | B48 |
| Dec 2017 | Manuel Pena Gomez | 2,491 | ch-EU blitz | A12 |
| Feb 2013 | Tamas Petenyi | 2,457 | chT-SVK 1213 | B82 |
| Oct 2009 | Federico Perez Ponsa | 2,422 | Wch U20 | B90 |
| Jan 2013 | Michal Meszaros | 2,412 | chT-SVK 1213 | B35 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 26 | 11 | 2,149 |
| ch-SVK U20 | 2009 | 17 | 11.5 | 2,377 |
| chT2B-SVK 0708 | 2008 | 11 | 7.5 | 2,209 |
| ch-EU blitz | 2017 | 10 | 2.5 | 2,028 |
| ch-EU rapid | 2017 | 10 | 4.5 | 2,331 |
| chT1W-SVK 0809 | 2009 | 10 | 4.5 | 2,276 |
| Wch U20 | 2009 | 10 | 5.5 | 2,294 |
| ch-SVK U10 | 1999 | 9 | 4.5 | – |
Interactive opening tree from all 246 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Martin Ondrus's chess games?
246 games by Martin Ondrus, from Oct 2006 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 Martin Ondrus has played.
What does Martin Ondrus play on the first move as White?
Across 124 games with White in our database, Martin Ondrus opens with 1.e4 (94% of games), 1.d4 (3% of games), 1.g3 (2% of games). Against 1.e4 as Black, Martin Ondrus answers 1...c5 (86% of games), 1...e5 (7% of games), 1...c6 (3% of games). Against 1.d4: 1...Nf6 (49% of games), 1...d5 (43% of games), 1...g6 (9% of games).
What openings does Martin Ondrus play as White?
As White, Martin Ondrus's most-played openings in our database are: Sicilian: Najdorf (17 games, 35.3% win rate); Sicilian (16 games, 25.0% win rate); French: Tarrasch Variation (15 games, 53.3% win rate). The full breakdown of 124 games with White is in the table above.
What openings does Martin Ondrus play as Black?
As Black, Martin Ondrus most often plays: Sicilian: Najdorf (28 games, 32.1% win rate); Slav Defense (11 games, 27.3% win rate); Sicilian (8 games, 25.0% win rate). See the table above for the top ten Black openings across 122 games.
What is Martin Ondrus's FIDE rating?
Martin Ondrus is currently rated 2,217 in classical chess, 2,350 in rapid and 2,195 in blitz. Peak classical rating: 2,320 (Mar 2015).
How many games has Martin Ondrus played?
Our database contains 246 games by Martin Ondrus, covering Oct 2006 to Jul 2026. Overall record: 90 wins, 76 draws, 80 losses (36.6% win rate).
How do I prepare against Martin Ondrus?
246 games by Martin Ondrus 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.