Prepare against Thomas Beerdsen
GM · NLD · World #559 classical · FIDE ID 1030108
When preparing against Thomas Beerdsen, expect 1.e4 in 95% of White games. Against 1.e4 the reply is 1...e5 (53% of games); against 1.d4, 1...Nf6 (48%). Lowest win rate among frequent openings: Slav Defense as Black, 42.3% over 71 games.
Our database contains 3,470 games by Thomas Beerdsen, covering Nov 2009 to Sep 2026. Below you'll find Thomas Beerdsen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Thomas Beerdsen 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 | 2,504 | 2,538 | Jun 2025 |
| Rapid | 2,505 | 2,505 | Sep 2026 |
| Blitz | 2,552 | 2,585 | Jul 2022 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 3,470 | 1,808 | 662 | 1,000 | 52.1% |
| As White | 1,761 | 987 | 324 | 450 | 56.0% |
| As Black | 1,709 | 821 | 338 | 550 | 48.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Thomas Beerdsen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Thomas Beerdsen's side.
First moves as White (1,761 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 1,666 | 94.6% | 65.0% |
| g4 | 23 | 1.3% | 63.0% |
| d4 | 21 | 1.2% | 66.7% |
| a4 | 20 | 1.1% | 72.5% |
| c4 | 9 | 0.5% | 66.7% |
| Nf3 | 7 | 0.4% | 64.3% |
Main lines as White
- 1.e4 — 95% of White games, 65.0% score
- …c5 (38% of these games) — Beerdsen usually continues Nf3 (65.9% score)
- …e5 (26% of these games) — Beerdsen usually continues Nf3 (64.1% score)
- …e6 (14% of these games) — Beerdsen usually continues d4 (65.2% score)
- 1.g4 — 1% of White games, 63.0% score
- …d5 (65% of these games) — Beerdsen usually continues Bg2 (63.3% score)
- …e5 (17% of these games) — Beerdsen usually continues Bg2 (50.0% score)
- …Nc6 (4% of these games) — Beerdsen usually continues Bg2 (100.0% score)
As Black against 1.e4 (758 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 403 | 53.2% | 62.9% |
| c5 | 304 | 40.1% | 57.9% |
| c6 | 30 | 4.0% | 65.0% |
| e6 | 6 | 0.8% | 75.0% |
| h6 | 4 | 0.5% | 25.0% |
| g5 | 3 | 0.4% | 83.3% |
As Black against 1.d4 (601 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 286 | 47.6% | 57.7% |
| d5 | 236 | 39.3% | 58.1% |
| e6 | 30 | 5.0% | 51.7% |
| c5 | 19 | 3.2% | 52.6% |
| h6 | 15 | 2.5% | 66.7% |
| f5 | 9 | 1.5% | 50.0% |
Thomas Beerdsen's chess games
All 3,470 games by Thomas Beerdsen in the Chess.ceo database (Nov 2009 - Sep 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: 1,808 wins, 662 draws, 1,000 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B40 | Sicilian | 299 | 166/58/75 | 55.5% |
| B90 | Sicilian: Najdorf | 155 | 88/26/41 | 56.8% |
| B12 | Caro-Kann: Fantasy Variation | 97 | 60/13/24 | 61.9% |
| C00 | French Defense | 70 | 39/14/17 | 55.7% |
| C29 | Vienna Game | 57 | 34/6/17 | 59.6% |
| C11 | French: Classical Variation | 57 | 36/7/14 | 63.2% |
| B06 | Modern Defense | 56 | 36/3/17 | 64.3% |
| C18 | French: Winawer Variation | 49 | 28/8/13 | 57.1% |
| C56 | Italian Game | 49 | 21/10/18 | 42.9% |
| C24 | Bishop's Opening | 47 | 21/14/12 | 44.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A50 | Indian Defense | 135 | 68/26/41 | 50.4% |
| C63 | Ruy Lopez: Schliemann | 135 | 81/8/46 | 60.0% |
| C55 | Italian Game | 103 | 69/5/29 | 67.0% |
| A04 | Réti Opening | 86 | 42/13/31 | 48.8% |
| B90 | Sicilian: Najdorf | 81 | 36/17/28 | 44.4% |
| B40 | Sicilian | 80 | 41/18/21 | 51.3% |
| D02 | Queen's Pawn Game | 76 | 41/13/22 | 53.9% |
| D11 | Slav Defense | 71 | 30/23/18 | 42.3% |
| D07 | Queen's Gambit | 68 | 34/10/24 | 50.0% |
| A10 | English Opening | 44 | 20/9/15 | 45.5% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Feb 2022 | Fabiano Caruana | 2,792 | Titled Tue Early | A04 |
| Apr 2021 | Shakhriyar Mamedyarov | 2,770 | Titled Arena Apr 3rd | A43 |
| Dec 2024 | Alireza Firouzja | 2,763 | Titled Tue Early | C63 |
| Mar 2022 | Hikaru Nakamura | 2,736 | Titled Tue Early | B06 |
| May 2024 | Maxime Vachier-Lagrave | 2,732 | Titled Tue Early | C63 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 1,426 | 895.5 | 2,498 |
| Dieren Open | 2023 | 92 | 49 | 2,317 |
| Titled Arena May 8th | 2021 | 50 | 18.5 | 2,356 |
| Titled Arena Apr 3rd | 2021 | 50 | 19.5 | 2,476 |
| Titled Arena Mar 6th | 2021 | 45 | 20 | 2,492 |
| Hilversum Open | 2024 | 40 | 31 | 2,493 |
| PRO League Stage | 2019 | 36 | 21.5 | 2,532 |
| ch-NED U13 | 2010 | 36 | 24.5 | 1,686 |
Frequent opponents
Head-to-head records: Olexandr Bortnyk (24 games) · Alexey Sarana (23 games) · Dmitry Andreikin (20 games) · Max Warmerdam (20 games) · Eelke De Boer (17 games) · Liam Vrolijk (16 games) · David Paravyan (15 games) · Matthias Bluebaum (15 games)
Interactive opening tree from all 3,470 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Thomas Beerdsen's chess games?
3,470 games by Thomas Beerdsen, from Nov 2009 to Sep 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 Thomas Beerdsen has played.
What does Thomas Beerdsen play on the first move as White?
Across 1,761 games with White in our database, Thomas Beerdsen opens with 1.e4 (95% of games), 1.g4 (1% of games), 1.d4 (1% of games). Against 1.e4 as Black, Thomas Beerdsen answers 1...e5 (53% of games), 1...c5 (40% of games), 1...c6 (4% of games). Against 1.d4: 1...Nf6 (48% of games), 1...d5 (39% of games), 1...e6 (5% of games).
What openings does Thomas Beerdsen play as White?
As White, Thomas Beerdsen's most-played openings in our database are: Sicilian (299 games, 55.5% win rate); Sicilian: Najdorf (155 games, 56.8% win rate); Caro-Kann: Fantasy Variation (97 games, 61.9% win rate). The full breakdown of 1,761 games with White is in the table above.
What openings does Thomas Beerdsen play as Black?
As Black, Thomas Beerdsen most often plays: Indian Defense (135 games, 50.4% win rate); Ruy Lopez: Schliemann (135 games, 60.0% win rate); Italian Game (103 games, 67.0% win rate). See the table above for the top ten Black openings across 1,709 games.
What is Thomas Beerdsen's FIDE rating?
Thomas Beerdsen is currently rated 2,504 in classical chess, 2,505 in rapid and 2,552 in blitz. Peak classical rating: 2,538 (Jun 2025).
How many games has Thomas Beerdsen played?
Our database contains 3,470 games by Thomas Beerdsen, covering Nov 2009 to Sep 2026. Overall record: 1,808 wins, 662 draws, 1,000 losses (52.1% win rate).
How do I prepare against Thomas Beerdsen?
3,470 games by Thomas Beerdsen 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.