Prepare against Chiel Van Oosterom
IM · NLD · World #1,672 classical · FIDE ID 1013076
When preparing against Chiel Van Oosterom, expect 1.e4 in 73% of White games. Against 1.e4 the reply is 1...c5 (85% of games); against 1.d4, 1...f5 (53%). Lowest win rate among frequent openings: Caro-Kann: Exchange Variation as White, 25.0% over 16 games.
Our database contains 624 games by Chiel Van Oosterom, covering Apr 2004 to Jul 2026. Below you'll find Chiel Van Oosterom's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Chiel Van Oosterom 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 | 2,400 | 2,428 | Oct 2008 |
| Rapid | 2,404 | 2,409 | Jun 2024 |
| Blitz | 2,408 | 2,417 | Mar 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 624 | 262 | 176 | 186 | 42.0% |
| As White | 320 | 152 | 91 | 77 | 47.5% |
| As Black | 304 | 110 | 85 | 109 | 36.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Chiel Van Oosterom's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Chiel Van Oosterom's side.
First moves as White (320 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 233 | 72.8% | 61.4% |
| c4 | 59 | 18.4% | 69.5% |
| g3 | 8 | 2.5% | 62.5% |
| b4 | 8 | 2.5% | 50.0% |
| Nf3 | 5 | 1.6% | 40.0% |
| d4 | 4 | 1.3% | 37.5% |
Main lines as White
- 1.e4 — 73% of White games, 61.4% score
- …c5 (46% of these games) — Oosterom usually continues c3 (66.7% score)
- …e5 (20% of these games) — Oosterom usually continues Nf3 (52.2% score)
- …e6 (13% of these games) — Oosterom usually continues d4 (63.3% score)
- 1.c4 — 18% of White games, 69.5% score
- …Nf6 (29% of these games) — Oosterom usually continues g3 (76.9% score)
- …e5 (24% of these games) — Oosterom usually continues Nc3 (77.3% score)
- …e6 (15% of these games) — Oosterom usually continues g3 (87.5% score)
As Black against 1.e4 (162 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 137 | 84.6% | 51.1% |
| d5 | 14 | 8.6% | 60.7% |
| d6 | 9 | 5.6% | 66.7% |
| c6 | 1 | 0.6% | 50.0% |
| e5 | 1 | 0.6% | 0.0% |
As Black against 1.d4 (98 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| f5 | 52 | 53.1% | 50.0% |
| Nf6 | 33 | 33.7% | 51.5% |
| d5 | 11 | 11.2% | 27.3% |
| d6 | 1 | 1.0% | 100.0% |
| c5 | 1 | 1.0% | 50.0% |
Chiel Van Oosterom's chess games
All 624 games by Chiel Van Oosterom 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: 262 wins, 176 draws, 186 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B22 | Sicilian: Alapin | 54 | 29/14/11 | 53.7% |
| B22 | Sicilian | 29 | 13/6/10 | 44.8% |
| A36 | English Opening | 17 | 6/5/6 | 35.3% |
| B14 | Caro-Kann: Exchange Variation | 16 | 4/11/1 | 25.0% |
| C91 | Ruy Lopez: Closed | 15 | 5/5/5 | 33.3% |
| A11 | English Opening: Slav Setup | 14 | 6/6/2 | 42.9% |
| A22 | English Opening: Reverse Sicilian | 14 | 8/5/1 | 57.1% |
| B06 | Modern Defense | 11 | 4/4/3 | 36.4% |
| C56 | Italian Game | 10 | 3/3/4 | 30.0% |
| B07 | Pirc Defense | 10 | 8/2/0 | 80.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A87 | Dutch Defense | 60 | 19/18/23 | 31.7% |
| B90 | Sicilian: Najdorf | 44 | 17/13/14 | 38.6% |
| B46 | Sicilian | 21 | 7/7/7 | 33.3% |
| B23 | Sicilian: Closed | 21 | 10/7/4 | 47.6% |
| B01 | Scandinavian Defense: Modern Variation | 12 | 5/5/2 | 41.7% |
| B33 | Sicilian: Sveshnikov | 12 | 5/1/6 | 41.7% |
| A57 | Benoni Defense | 12 | 4/4/4 | 33.3% |
| D30 | Slav Defense | 10 | 2/4/4 | 20.0% |
| B22 | Sicilian: Alapin | 10 | 3/3/4 | 30.0% |
| B08 | Pirc Defense | 9 | 4/4/1 | 44.4% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2012 | Erwin L'Ami | 2,628 | Roosendaal LBV Open A | A80 |
| Jul 2012 | Jan H Timman | 2,575 | Helmond Legibus Open | C88 |
| Apr 2007 | Slavko Cicak | 2,544 | 11th Neckar Open A | B10 |
| Apr 2007 | Boris Chatalbashev | 2,541 | 11th Neckar Open A | B06 |
| Nov 2007 | Jan Smeets | 2,538 | chT-NED 0708 | C67 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-NED U14 | 2002 | 27 | 17 | – |
| Groningen Open A | 2010 | 27 | 19 | 2,444 |
| Groningen Harmonie Open A | 2007 | 23 | 14 | 2,359 |
| Delft Prinsenstad Open A | 2012 | 22 | 13 | 2,291 |
| Dieren Open | 2005 | 18 | 9.5 | 2,290 |
| ch-NED U21 | 2008 | 18 | 12 | 2,379 |
| Haarlem BDO-A | 2009 | 18 | 6.5 | 2,339 |
| Hengelo U14 Open | 2002 | 18 | 13 | – |
Interactive opening tree from all 624 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Chiel Van Oosterom's chess games?
624 games by Chiel Van Oosterom, 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 Chiel Van Oosterom has played.
What does Chiel Van Oosterom play on the first move as White?
Across 320 games with White in our database, Chiel Van Oosterom opens with 1.e4 (73% of games), 1.c4 (18% of games), 1.g3 (3% of games). Against 1.e4 as Black, Chiel Van Oosterom answers 1...c5 (85% of games), 1...d5 (9% of games), 1...d6 (6% of games). Against 1.d4: 1...f5 (53% of games), 1...Nf6 (34% of games), 1...d5 (11% of games).
What openings does Chiel Van Oosterom play as White?
As White, Chiel Van Oosterom's most-played openings in our database are: Sicilian: Alapin (54 games, 53.7% win rate); Sicilian (29 games, 44.8% win rate); English Opening (17 games, 35.3% win rate). The full breakdown of 320 games with White is in the table above.
What openings does Chiel Van Oosterom play as Black?
As Black, Chiel Van Oosterom most often plays: Dutch Defense (60 games, 31.7% win rate); Sicilian: Najdorf (44 games, 38.6% win rate); Sicilian (21 games, 33.3% win rate). See the table above for the top ten Black openings across 304 games.
What is Chiel Van Oosterom's FIDE rating?
Chiel Van Oosterom is currently rated 2,400 in classical chess, 2,404 in rapid and 2,408 in blitz. Peak classical rating: 2,428 (Oct 2008).
How many games has Chiel Van Oosterom played?
Our database contains 624 games by Chiel Van Oosterom, covering Apr 2004 to Jul 2026. Overall record: 262 wins, 176 draws, 186 losses (42.0% win rate).
How do I prepare against Chiel Van Oosterom?
624 games by Chiel Van Oosterom 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.