Prepare against Jermo Kooijmans
FM · NLD · World #6,445 classical · FIDE ID 1043790
When preparing against Jermo Kooijmans, expect 1.e4 in 75% of White games. Against 1.e4 the reply is 1...e5 (67% of games); against 1.d4, 1...Nf6 (75%).
Our database contains 33 games by Jermo Kooijmans, covering Jan 2013 to Aug 2026. Below you'll find Jermo Kooijmans's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jermo Kooijmans 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 | 2,236 | 2,360 | Nov 2021 |
| Blitz | 2,327 | 2,356 | Jan 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 33 | 14 | 10 | 9 | 42.4% |
| As White | 20 | 8 | 7 | 5 | 40.0% |
| As Black | 13 | 6 | 3 | 4 | 46.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jermo Kooijmans's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jermo Kooijmans's side.
First moves as White (20 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 15 | 75.0% | 63.3% |
| c4 | 5 | 25.0% | 40.0% |
Main lines as White
- 1.e4 — 75% of White games, 63.3% score
- …c5 (67% of these games) — Kooijmans usually continues Nf3 (65.0% score)
- …e6 (20% of these games) — Kooijmans usually continues d4 (50.0% score)
- …c6 (7% of these games) — Kooijmans usually continues d4 (50.0% score)
- 1.c4 — 25% of White games, 40.0% score
- …e6 (60% of these games) — Kooijmans usually continues g3 (50.0% score)
- …c5 (20% of these games) — Kooijmans usually continues Nf3 (0.0% score)
- …Nf6 (20% of these games) — Kooijmans usually continues Nc3 (50.0% score)
As Black against 1.e4 (6 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 4 | 66.7% | 50.0% |
| c5 | 2 | 33.3% | 50.0% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 3 | 75.0% | 66.7% |
| d5 | 1 | 25.0% | 100.0% |
Jermo Kooijmans's chess games
All 33 games by Jermo Kooijmans in the Chess.ceo database (Jan 2013 - 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: 14 wins, 10 draws, 9 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A13 | English Opening | 3 | 1/0/2 | 33.3% |
| B48 | Sicilian: Taimanov | 3 | 2/1/0 | 66.7% |
| B28 | Sicilian | 2 | 0/1/1 | 0.0% |
| B27 | Sicilian: Hyperaccelerated Dragon | 2 | 1/1/0 | 50.0% |
| B51 | Sicilian: Moscow Variation | 2 | 2/0/0 | 100.0% |
| C18 | French: Winawer Variation | 2 | 0/1/1 | 0.0% |
| C24 | Italian Game | 1 | 1/0/0 | 100.0% |
| A14 | English Opening: Neo-Catalan | 1 | 0/1/0 | 0.0% |
| A16 | English Opening: Symmetrical | 1 | 0/1/0 | 0.0% |
| C10 | French: Tarrasch Variation | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D02 | Indian Defense | 2 | 1/0/1 | 50.0% |
| C88 | Ruy Lopez: Closed | 2 | 1/0/1 | 50.0% |
| C47 | Four Knights Game: Scotch Variation | 1 | 0/1/0 | 0.0% |
| A00 | Hungarian Opening | 1 | 0/0/1 | 0.0% |
| C55 | Italian Game | 1 | 0/1/0 | 0.0% |
| E20 | Nimzo-Indian Defense | 1 | 1/0/0 | 100.0% |
| D53 | Queen's Gambit Declined | 1 | 1/0/0 | 100.0% |
| B40 | Sicilian | 1 | 0/0/1 | 0.0% |
| E05 | Catalan | 1 | 0/1/0 | 0.0% |
| B23 | Sicilian: Closed | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2017 | Michal Luch | 2,393 | Dieren Open | E20 |
| Aug 2017 | Max Warmerdam | 2,357 | Dieren Open | B51 |
| Dec 2025 | Helmut Cardon | 2,288 | Dutch Klasse 1B 2025/26 | A13 |
| Feb 2017 | Klaus Rybarczyk | 2,283 | NRW Class2 1617 | B51 |
| Sep 2016 | Heinz Georg | 2,234 | NRW Class2 1617 | C24 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Dieren Open | 2017 | 8 | 4 | 2,393 |
| NRW Class2 1617 | 2017 | 7 | 5 | 2,402 |
| Oberliga NRW 1718 | 2018 | 4 | 2 | 2,213 |
| chT-BEL 1617 | 2017 | 3 | 1.5 | 2,238 |
| HWP Inholland 2026 | 2026 | 2 | 1 | 2,139 |
| Dieren Reserve-A | 2013 | 2 | 1 | 2,006 |
| NRW Class2 1213 | 2013 | 2 | 1.5 | 2,260 |
| HSG Open 2026 | 2026 | 2 | 0.5 | 1,925 |
Interactive opening tree from all 33 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jermo Kooijmans's chess games?
33 games by Jermo Kooijmans, from Jan 2013 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 Jermo Kooijmans has played.
What does Jermo Kooijmans play on the first move as White?
Across 20 games with White in our database, Jermo Kooijmans opens with 1.e4 (75% of games), 1.c4 (25% of games). Against 1.e4 as Black, Jermo Kooijmans answers 1...e5 (67% of games), 1...c5 (33% of games). Against 1.d4: 1...Nf6 (75% of games), 1...d5 (25% of games).
What openings does Jermo Kooijmans play as White?
As White, Jermo Kooijmans's most-played openings in our database are: English Opening (3 games, 33.3% win rate); Sicilian: Taimanov (3 games, 66.7% win rate); Sicilian (2 games, 0.0% win rate). The full breakdown of 20 games with White is in the table above.
What openings does Jermo Kooijmans play as Black?
As Black, Jermo Kooijmans most often plays: Indian Defense (2 games, 50.0% win rate); Ruy Lopez: Closed (2 games, 50.0% win rate); Four Knights Game: Scotch Variation (1 games, 0.0% win rate). See the table above for the top ten Black openings across 13 games.
What is Jermo Kooijmans's FIDE rating?
Jermo Kooijmans is currently rated 2,236 in classical chess and 2,327 in blitz. Peak classical rating: 2,360 (Nov 2021).
How many games has Jermo Kooijmans played?
Our database contains 33 games by Jermo Kooijmans, covering Jan 2013 to Aug 2026. Overall record: 14 wins, 10 draws, 9 losses (42.4% win rate).
How do I prepare against Jermo Kooijmans?
33 games by Jermo Kooijmans 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.