Prepare against Jan Boersma
NLD · World #15,882 classical · FIDE ID 1003267
Our database contains 308 games by Jan Boersma, covering Apr 2003 to Aug 2026. Below you'll find Jan Boersma's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jan Boersma 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 | 2,096 | 2,237 | Jul 2005 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 308 | 85 | 97 | 126 | 27.6% |
| As White | 144 | 48 | 46 | 50 | 33.3% |
| As Black | 164 | 37 | 51 | 76 | 22.6% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jan Boersma's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jan Boersma's side.
First moves as White (144 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 126 | 87.5% | 52.4% |
| Nc3 | 16 | 11.1% | 28.1% |
| d4 | 2 | 1.4% | 25.0% |
Main lines as White
- 1.e4 — 88% of White games, 52.4% score
- …c5 (40% of these games) — Boersma usually continues Nc3 (46.6% score)
- …e6 (21% of these games) — Boersma usually continues d4 (46.2% score)
- …e5 (18% of these games) — Boersma usually continues Nf3 (58.3% score)
- 1.Nc3 — 11% of White games, 28.1% score
- …d5 (38% of these games) — Boersma usually continues e4 (16.7% score)
- …c5 (25% of these games) — Boersma usually continues e4 (50.0% score)
- …g6 (13% of these games) — Boersma usually continues e4 (50.0% score)
As Black against 1.e4 (87 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 45 | 51.7% | 32.2% |
| e6 | 41 | 47.1% | 34.1% |
| c6 | 1 | 1.1% | 0.0% |
As Black against 1.d4 (47 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 42 | 89.4% | 41.7% |
| g6 | 2 | 4.3% | 0.0% |
| c5 | 2 | 4.3% | 50.0% |
| f5 | 1 | 2.1% | 100.0% |
Jan Boersma's chess games
All 308 games by Jan Boersma 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: 85 wins, 97 draws, 126 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B23 | Sicilian: Closed | 31 | 8/13/10 | 25.8% |
| C48 | Four Knights Game: Spanish Variation | 13 | 5/4/4 | 38.5% |
| C15 | French: Winawer Variation | 13 | 3/6/4 | 23.1% |
| A00 | Dunst Opening | 12 | 0/6/6 | 0.0% |
| B20 | Sicilian | 8 | 2/2/4 | 25.0% |
| B30 | Sicilian: Grand Prix Attack | 7 | 6/0/1 | 85.7% |
| B10 | Caro-Kann | 6 | 1/1/4 | 16.7% |
| C06 | French: Tarrasch Variation | 4 | 0/1/3 | 0.0% |
| C11 | French: Classical Variation | 4 | 2/1/1 | 50.0% |
| B07 | Pirc Defense | 4 | 3/1/0 | 75.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E91 | King's Indian Defense: Orthodox Variation | 18 | 3/6/9 | 16.7% |
| B38 | Sicilian: Accelerated Dragon | 17 | 2/6/9 | 11.8% |
| E61 | King's Indian Defense | 16 | 4/5/7 | 25.0% |
| B27 | Sicilian: Hyperaccelerated Dragon | 15 | 2/3/10 | 13.3% |
| C07 | French: Tarrasch Variation | 13 | 2/4/7 | 15.4% |
| C11 | French: Classical Variation | 13 | 3/3/7 | 23.1% |
| A26 | Modern Defense | 9 | 3/1/5 | 33.3% |
| C10 | French Defense | 7 | 2/0/5 | 28.6% |
| B25 | Sicilian: Closed | 6 | 2/3/1 | 33.3% |
| A48 | Indian Defense | 5 | 2/3/0 | 40.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Oct 2004 | Albert Blees | 2,408 | Hoogeveen Essent Open | B25 |
| Aug 2002 | Eelke Wiersma | 2,382 | Lost Boys Open | B00 |
| Aug 2002 | Paul Span | 2,294 | Lost Boys Open | C10 |
| Oct 2004 | Adrian Clemens | 2,277 | Hoogeveen Essent Open | A65 |
| Oct 2014 | Ilias Van der Lende | 2,277 | 18th Hoogeveen Unive Open | C15 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Dieren Open | 2023 | 71 | 27 | 2,092 |
| Hoogeveen Essent Open | 2004 | 27 | 10 | 2,212 |
| Groningen Open A | 2006 | 17 | 9 | 2,167 |
| Lost Boys Open | 2002 | 14 | 8 | 2,347 |
| Dutch Open 2026 - Reserve A | 2026 | 9 | 6.5 | 2,144 |
| Groningen Harmonie Open A | 2003 | 9 | 5.5 | 2,364 |
| ch-NED U20 | 1977 | 9 | 3.5 | – |
| 20th Hoogeveen Unive Open | 2016 | 8 | 4 | 2,078 |
Interactive opening tree from all 308 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jan Boersma's chess games?
308 games by Jan Boersma, 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 Jan Boersma has played.
What does Jan Boersma play on the first move as White?
Across 144 games with White in our database, Jan Boersma opens with 1.e4 (88% of games), 1.Nc3 (11% of games), 1.d4 (1% of games). Against 1.e4 as Black, Jan Boersma answers 1...c5 (52% of games), 1...e6 (47% of games), 1...c6 (1% of games). Against 1.d4: 1...Nf6 (89% of games), 1...g6 (4% of games), 1...c5 (4% of games).
What openings does Jan Boersma play as White?
As White, Jan Boersma's most-played openings in our database are: Sicilian: Closed (31 games, 25.8% win rate); Four Knights Game: Spanish Variation (13 games, 38.5% win rate); French: Winawer Variation (13 games, 23.1% win rate). The full breakdown of 144 games with White is in the table above.
What openings does Jan Boersma play as Black?
As Black, Jan Boersma most often plays: King's Indian Defense: Orthodox Variation (18 games, 16.7% win rate); Sicilian: Accelerated Dragon (17 games, 11.8% win rate); King's Indian Defense (16 games, 25.0% win rate). See the table above for the top ten Black openings across 164 games.
What is Jan Boersma's FIDE rating?
Jan Boersma is currently rated 2,096 in classical chess. Peak classical rating: 2,237 (Jul 2005).
How many games has Jan Boersma played?
Our database contains 308 games by Jan Boersma, covering Apr 2003 to Aug 2026. Overall record: 85 wins, 97 draws, 126 losses (27.6% win rate).
How do I prepare against Jan Boersma?
308 games by Jan Boersma 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.