Prepare against Sjoerd Van Roosmalen
CM · NLD · World #19,981 classical · FIDE ID 1019430
Our database contains 75 games by Sjoerd Van Roosmalen, covering Oct 2005 to Jul 2026. Below you'll find Sjoerd Van Roosmalen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sjoerd Van Roosmalen 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 | 2,057 | 2,266 | Jul 2006 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 75 | 31 | 15 | 29 | 41.3% |
| As White | 37 | 18 | 8 | 11 | 48.6% |
| As Black | 38 | 13 | 7 | 18 | 34.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sjoerd Van Roosmalen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sjoerd Van Roosmalen's side.
First moves as White (37 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 37 | 100.0% | 59.5% |
Main lines as White
- 1.d4 — 100% of White games, 59.5% score
- …Nf6 (41% of these games) — Roosmalen usually continues c4 (53.3% score)
- …d5 (38% of these games) — Roosmalen usually continues c4 (61.5% score)
- …e6 (11% of these games) — Roosmalen usually continues c4 (83.3% score)
As Black against 1.e4 (24 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 21 | 87.5% | 42.9% |
| e6 | 3 | 12.5% | 66.7% |
As Black against 1.d4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 4 | 57.1% | 62.5% |
| d5 | 3 | 42.9% | 16.7% |
Sjoerd Van Roosmalen's chess games
All 75 games by Sjoerd Van Roosmalen in the Chess.ceo database (Oct 2005 - 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: 31 wins, 15 draws, 29 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A65 | King's Indian: Sämisch | 7 | 3/2/2 | 42.9% |
| D53 | Indian Defense | 5 | 2/1/2 | 40.0% |
| D40 | Queen's Gambit Declined | 3 | 2/1/0 | 66.7% |
| D93 | Grünfeld Defense | 3 | 1/1/1 | 33.3% |
| A42 | Modern Defense | 2 | 1/0/1 | 50.0% |
| A44 | Benoni Defense | 2 | 1/0/1 | 50.0% |
| D31 | Semi-Slav Defense | 2 | 1/0/1 | 50.0% |
| A81 | Horwitz Defense | 2 | 2/0/0 | 100.0% |
| D06 | Queen's Gambit | 2 | 2/0/0 | 100.0% |
| D15 | Slav Defense | 2 | 0/0/2 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 13 | 3/4/6 | 23.1% |
| B23 | Sicilian: Closed | 4 | 1/0/3 | 25.0% |
| D00 | Queen's Pawn Game | 3 | 0/1/2 | 0.0% |
| A36 | Sicilian | 3 | 2/0/1 | 66.7% |
| A12 | English Opening | 3 | 1/1/1 | 33.3% |
| A55 | English Opening: Slav Setup | 2 | 1/0/1 | 50.0% |
| C00 | French Defense | 2 | 1/0/1 | 50.0% |
| A53 | Indian Defense | 2 | 1/0/1 | 50.0% |
| D00 | Trompowsky Attack | 1 | 0/1/0 | 0.0% |
| C11 | French: Classical Variation | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Feb 2008 | Chiel Van Oosterom | 2,408 | 68th Leiden Noteboom Memorial | D31 |
| Jul 2005 | Wim Heemskerk | 2,252 | Dieren Open | A42 |
| Aug 2005 | Carol-Peter Gouw | 2,164 | Dieren Open | A85 |
| Aug 2006 | Arlette Van Weersel | 2,155 | Dieren Open | B44 |
| Aug 2007 | Daniel Schenkeveld | 2,085 | Dieren Open | A55 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Dieren Open | 2007 | 26 | 13 | 2,198 |
| ch-NED U20 | 1997 | 18 | 10.5 | 2,276 |
| Hengelo U20 Open | 1996 | 9 | 4.5 | 2,225 |
| VCN SchaakFestival | 1999 | 6 | 4 | 2,004 |
| 5th Haarlem AKN Open | 1996 | 6 | 3 | 2,132 |
| Utrecht Keres Memorial Open | 1999 | 5 | 2 | 2,145 |
| 68th Leiden Noteboom Memorial | 2008 | 2 | 1 | 2,457 |
| Utrecht Open | 1998 | 2 | 0.5 | 1,980 |
Interactive opening tree from all 75 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sjoerd Van Roosmalen's chess games?
75 games by Sjoerd Van Roosmalen, from Oct 2005 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 Sjoerd Van Roosmalen has played.
What does Sjoerd Van Roosmalen play on the first move as White?
Across 37 games with White in our database, Sjoerd Van Roosmalen opens with 1.d4 (100% of games). Against 1.e4 as Black, Sjoerd Van Roosmalen answers 1...c5 (88% of games), 1...e6 (13% of games). Against 1.d4: 1...Nf6 (57% of games), 1...d5 (43% of games).
What openings does Sjoerd Van Roosmalen play as White?
As White, Sjoerd Van Roosmalen's most-played openings in our database are: King's Indian: Sämisch (7 games, 42.9% win rate); Indian Defense (5 games, 40.0% win rate); Queen's Gambit Declined (3 games, 66.7% win rate). The full breakdown of 37 games with White is in the table above.
What openings does Sjoerd Van Roosmalen play as Black?
As Black, Sjoerd Van Roosmalen most often plays: Sicilian: Najdorf (13 games, 23.1% win rate); Sicilian: Closed (4 games, 25.0% win rate); Queen's Pawn Game (3 games, 0.0% win rate). See the table above for the top ten Black openings across 38 games.
What is Sjoerd Van Roosmalen's FIDE rating?
Sjoerd Van Roosmalen is currently rated 2,057 in classical chess. Peak classical rating: 2,266 (Jul 2006).
How many games has Sjoerd Van Roosmalen played?
Our database contains 75 games by Sjoerd Van Roosmalen, covering Oct 2005 to Jul 2026. Overall record: 31 wins, 15 draws, 29 losses (41.3% win rate).
How do I prepare against Sjoerd Van Roosmalen?
75 games by Sjoerd Van Roosmalen 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.