Prepare against Koen Leenhouts
GM · NLD · World #1,074 classical · FIDE ID 1008439
Our database contains 2,199 games by Koen Leenhouts, covering Apr 2003 to Aug 2026. Below you'll find Koen Leenhouts's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Koen Leenhouts 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 | 2,445 | 2,513 | Dec 2016 |
| Rapid | 2,446 | 2,454 | Jun 2024 |
| Blitz | 2,424 | 2,424 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 2,199 | 985 | 409 | 804 | 44.8% |
| As White | 1,124 | 578 | 187 | 358 | 51.4% |
| As Black | 1,075 | 407 | 222 | 446 | 37.9% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Koen Leenhouts's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Koen Leenhouts's side.
First moves as White (1,124 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 736 | 65.5% | 58.0% |
| e4 | 327 | 29.1% | 63.5% |
| Nf3 | 32 | 2.8% | 65.6% |
| c4 | 23 | 2.0% | 58.7% |
| b3 | 6 | 0.5% | 50.0% |
Main lines as White
- 1.d4 — 65% of White games, 58.0% score
- …Nf6 (60% of these games) — Leenhouts usually continues c4 (56.1% score)
- …d5 (26% of these games) — Leenhouts usually continues c4 (61.8% score)
- …e6 (4% of these games) — Leenhouts usually continues c4 (61.5% score)
- 1.e4 — 29% of White games, 63.5% score
- …c5 (40% of these games) — Leenhouts usually continues Nf3 (62.9% score)
- …e5 (24% of these games) — Leenhouts usually continues Nf3 (66.7% score)
- …e6 (13% of these games) — Leenhouts usually continues d4 (73.9% score)
As Black against 1.e4 (527 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 248 | 47.1% | 50.0% |
| e5 | 123 | 23.3% | 52.4% |
| e6 | 95 | 18.0% | 48.4% |
| g6 | 36 | 6.8% | 45.8% |
| d6 | 12 | 2.3% | 70.8% |
| d5 | 6 | 1.1% | 16.7% |
As Black against 1.d4 (359 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 259 | 72.1% | 45.6% |
| d5 | 80 | 22.3% | 45.6% |
| e6 | 9 | 2.5% | 88.9% |
| f5 | 8 | 2.2% | 50.0% |
| d6 | 1 | 0.3% | 0.0% |
| g6 | 1 | 0.3% | 100.0% |
Koen Leenhouts's chess games
All 2,199 games by Koen Leenhouts in the Chess.ceo database (Apr 2003 - 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: 985 wins, 409 draws, 804 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E04 | Catalan | 117 | 58/18/40 | 49.6% |
| B50 | Sicilian | 81 | 40/16/25 | 49.4% |
| E81 | King's Indian: Sämisch | 74 | 40/9/25 | 54.1% |
| D11 | Slav Defense | 67 | 36/8/23 | 53.7% |
| D35 | Indian Defense | 66 | 36/10/20 | 54.5% |
| E32 | Nimzo-Indian: Classical Variation | 46 | 13/16/17 | 28.3% |
| D85 | Grünfeld Defense | 46 | 26/4/16 | 56.5% |
| A65 | Benoni Defense | 43 | 17/8/18 | 39.5% |
| E45 | Nimzo-Indian: Rubinstein System | 28 | 12/2/14 | 42.9% |
| A41 | Queen's Pawn Game | 28 | 14/2/12 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B40 | Sicilian | 111 | 46/29/36 | 41.4% |
| D85 | Grünfeld Defense | 91 | 33/14/44 | 36.3% |
| B48 | Sicilian: Taimanov | 73 | 23/15/35 | 31.5% |
| D78 | Indian Defense | 70 | 27/15/28 | 38.6% |
| A34 | English Opening | 47 | 14/12/21 | 29.8% |
| B15 | Modern Defense | 38 | 12/10/16 | 31.6% |
| D02 | London System | 28 | 9/5/14 | 32.1% |
| C41 | Philidor | 26 | 16/2/8 | 61.5% |
| A36 | English Opening: Symmetrical | 25 | 11/6/8 | 44.0% |
| C18 | French: Winawer Variation | 22 | 9/3/10 | 40.9% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2023 | Daniil Dubov | 2,708 | Titled Tue Early | B13 |
| Apr 2023 | Pavel Eljanov | 2,705 | Titled Tue Late | B46 |
| Jul 2018 | Loek Van Wely | 2,674 | ch-NED | A40 |
| Sep 2017 | Alexander Moiseenko | 2,674 | Titled Tue | D85 |
| Mar 2017 | Eduardo Iturrizaga Bonelli | 2,673 | Titled Tue | A59 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 972 | 475 | 2,309 |
| Dieren Open | 2018 | 36 | 21 | 2,434 |
| Titled Arena Apr 3rd | 2021 | 31 | 11.5 | 2,272 |
| Titled Arena May 8th | 2021 | 28 | 12.5 | 2,211 |
| ch-NED U12 | 1995 | 23 | 17 | 1,876 |
| 11th Amsterdam Batavia Grolsch Blitz | 2019 | 20 | 8.5 | 2,391 |
| Hengelo U20 Open | 2003 | 18 | 14.5 | 2,419 |
| ch-NED U16 | 2000 | 18 | 12 | 2,335 |
Frequent opponents
Head-to-head records: Max Warmerdam (11 games) · Erwin L'Ami (10 games)
Interactive opening tree from all 2,199 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Koen Leenhouts's chess games?
2,199 games by Koen Leenhouts, from Apr 2003 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 Koen Leenhouts has played.
What does Koen Leenhouts play on the first move as White?
Across 1,124 games with White in our database, Koen Leenhouts opens with 1.d4 (65% of games), 1.e4 (29% of games), 1.Nf3 (3% of games). Against 1.e4 as Black, Koen Leenhouts answers 1...c5 (47% of games), 1...e5 (23% of games), 1...e6 (18% of games). Against 1.d4: 1...Nf6 (72% of games), 1...d5 (22% of games), 1...e6 (3% of games).
What openings does Koen Leenhouts play as White?
As White, Koen Leenhouts's most-played openings in our database are: Catalan (117 games, 49.6% win rate); Sicilian (81 games, 49.4% win rate); King's Indian: Sämisch (74 games, 54.1% win rate). The full breakdown of 1,124 games with White is in the table above.
What openings does Koen Leenhouts play as Black?
As Black, Koen Leenhouts most often plays: Sicilian (111 games, 41.4% win rate); Grünfeld Defense (91 games, 36.3% win rate); Sicilian: Taimanov (73 games, 31.5% win rate). See the table above for the top ten Black openings across 1,075 games.
What is Koen Leenhouts's FIDE rating?
Koen Leenhouts is currently rated 2,445 in classical chess, 2,446 in rapid and 2,424 in blitz. Peak classical rating: 2,513 (Dec 2016).
How many games has Koen Leenhouts played?
Our database contains 2,199 games by Koen Leenhouts, covering Apr 2003 to Aug 2026. Overall record: 985 wins, 409 draws, 804 losses (44.8% win rate).
How do I prepare against Koen Leenhouts?
2,199 games by Koen Leenhouts 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.