Prepare against Onno Van Keulen
NLD · World #27,628 classical · FIDE ID 1013858
Our database contains 86 games by Onno Van Keulen, covering Apr 2004 to Jul 2026. Below you'll find Onno Van Keulen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Onno Van Keulen 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 | 2,000 | 2,074 | Jul 2004 |
| Rapid | 1,960 | 1,960 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 86 | 27 | 28 | 31 | 31.4% |
| As White | 48 | 17 | 15 | 16 | 35.4% |
| As Black | 38 | 10 | 13 | 15 | 26.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Onno Van Keulen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Onno Van Keulen's side.
First moves as White (48 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 22 | 45.8% | 34.1% |
| e4 | 12 | 25.0% | 58.3% |
| Nf3 | 12 | 25.0% | 66.7% |
| c4 | 2 | 4.2% | 100.0% |
Main lines as White
- 1.d4 — 46% of White games, 34.1% score
- …Nf6 (59% of these games) — Keulen usually continues c4 (50.0% score)
- …d5 (36% of these games) — Keulen usually continues c4 (21.4% score)
- …f5 (5% of these games) — Keulen usually continues c4 (0.0% score)
- 1.e4 — 25% of White games, 58.3% score
- …e5 (33% of these games) — Keulen usually continues Nf3 (87.5% score)
- …c5 (33% of these games) — Keulen usually continues Nf3 (50.0% score)
- …Nc6 (8% of these games) — Keulen usually continues Nf3 (100.0% score)
As Black against 1.e4 (16 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c6 | 7 | 43.8% | 14.3% |
| c5 | 6 | 37.5% | 50.0% |
| Nf6 | 1 | 6.3% | 0.0% |
| e5 | 1 | 6.3% | 0.0% |
| e6 | 1 | 6.3% | 0.0% |
As Black against 1.d4 (16 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 12 | 75.0% | 41.7% |
| d5 | 3 | 18.8% | 50.0% |
| e6 | 1 | 6.3% | 50.0% |
Onno Van Keulen's chess games
All 86 games by Onno Van Keulen in the Chess.ceo database (Apr 2004 - 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: 27 wins, 28 draws, 31 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E61 | Indian Defense | 8 | 3/2/3 | 37.5% |
| D15 | Slav Defense | 4 | 3/0/1 | 75.0% |
| D91 | Grünfeld Defense | 3 | 0/2/1 | 0.0% |
| A39 | English Opening | 3 | 2/1/0 | 66.7% |
| E01 | Catalan | 2 | 1/0/1 | 50.0% |
| C88 | Ruy Lopez: Closed | 2 | 2/0/0 | 100.0% |
| B96 | Sicilian: Najdorf | 2 | 0/1/1 | 0.0% |
| A30 | Queen's Indian Defense | 2 | 0/2/0 | 0.0% |
| A25 | English Opening: Reverse Sicilian | 1 | 1/0/0 | 100.0% |
| A50 | English Opening: Double Fianchetto | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D02 | Indian Defense | 3 | 0/3/0 | 0.0% |
| A58 | Benoni Defense | 3 | 0/1/2 | 0.0% |
| B72 | Sicilian: Dragon | 3 | 1/1/1 | 33.3% |
| B11 | Caro-Kann: Two Knights Variation | 3 | 1/0/2 | 33.3% |
| D15 | Slav Defense | 2 | 1/1/0 | 50.0% |
| D02 | London System | 2 | 0/1/1 | 0.0% |
| E09 | Catalan | 2 | 1/1/0 | 50.0% |
| B17 | Caro-Kann: Karpov Variation | 1 | 0/0/1 | 0.0% |
| D94 | Caro-Kann: Exchange Variation | 1 | 0/0/1 | 0.0% |
| D00 | Bird's opening | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2015 | Gustavo Magallanes | 2,174 | Barcelona Vila de Gracia Open 9th | A39 |
| Nov 2015 | Carlos Severri Arrese | 2,143 | Barcelona Vila de Gracia Open 9th | D04 |
| May 2014 | Jaume Costa Trave | 2,066 | Barcelona Barri Gotic Open 3rd | D00 |
| Jun 2018 | Josep Garcia Espelta | 2,063 | 47th Barcelona Tres Peons D | B77 |
| Nov 2016 | Francesc Campins Machado | 2,060 | 10th Barcelona Vila Gracia Open | E09 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 45th Barcelona Tres Peons-E | 2016 | 8 | 4 | 1,902 |
| 46th Barcelona Tres Peons-D | 2017 | 8 | 5.5 | 2,040 |
| Barcelona 150 Anniversary 1 | 2019 | 8 | 5 | 1,971 |
| 47th Barcelona Tres Peons D | 2018 | 7 | 4 | 1,968 |
| 4th Barcelona Sant Marti Open A | 2015 | 7 | 3.5 | 1,806 |
| Barcelona Vila de Gracia Open 9th | 2015 | 5 | 3.5 | 2,365 |
| 8th Barcelona Tres Peons | 2016 | 5 | 2 | 1,907 |
| Barcelona Tres Peons Open 19th | 2017 | 5 | 1 | 1,738 |
Interactive opening tree from all 86 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Onno Van Keulen's chess games?
86 games by Onno Van Keulen, from Apr 2004 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 Onno Van Keulen has played.
What does Onno Van Keulen play on the first move as White?
Across 48 games with White in our database, Onno Van Keulen opens with 1.d4 (46% of games), 1.e4 (25% of games), 1.Nf3 (25% of games). Against 1.e4 as Black, Onno Van Keulen answers 1...c6 (44% of games), 1...c5 (38% of games), 1...Nf6 (6% of games). Against 1.d4: 1...Nf6 (75% of games), 1...d5 (19% of games), 1...e6 (6% of games).
What openings does Onno Van Keulen play as White?
As White, Onno Van Keulen's most-played openings in our database are: Indian Defense (8 games, 37.5% win rate); Slav Defense (4 games, 75.0% win rate); Grünfeld Defense (3 games, 0.0% win rate). The full breakdown of 48 games with White is in the table above.
What openings does Onno Van Keulen play as Black?
As Black, Onno Van Keulen most often plays: Indian Defense (3 games, 0.0% win rate); Benoni Defense (3 games, 0.0% win rate); Sicilian: Dragon (3 games, 33.3% win rate). See the table above for the top ten Black openings across 38 games.
What is Onno Van Keulen's FIDE rating?
Onno Van Keulen is currently rated 2,000 in classical chess, 1,960 in rapid. Peak classical rating: 2,074 (Jul 2004).
How many games has Onno Van Keulen played?
Our database contains 86 games by Onno Van Keulen, covering Apr 2004 to Jul 2026. Overall record: 27 wins, 28 draws, 31 losses (31.4% win rate).
How do I prepare against Onno Van Keulen?
86 games by Onno Van Keulen 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.