Prepare against Jan Joris Groenewold
NLD · World #17,343 classical · FIDE ID 1008323
Our database contains 158 games by Jan Joris Groenewold, covering Oct 2004 to Jul 2026. Below you'll find Jan Joris Groenewold's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jan Joris Groenewold 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 | 2,081 | 2,189 | Jul 2010 |
| Rapid | 2,092 | 2,134 | Jun 2022 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 158 | 61 | 33 | 64 | 38.6% |
| As White | 80 | 36 | 17 | 27 | 45.0% |
| As Black | 78 | 25 | 16 | 37 | 32.1% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jan Joris Groenewold's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jan Joris Groenewold's side.
First moves as White (80 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 53 | 66.3% | 54.7% |
| Nf3 | 16 | 20.0% | 62.5% |
| f4 | 7 | 8.8% | 35.7% |
| e4 | 2 | 2.5% | 100.0% |
| b3 | 1 | 1.3% | 50.0% |
| c4 | 1 | 1.3% | 50.0% |
Main lines as White
- 1.d4 — 66% of White games, 54.7% score
- …Nf6 (58% of these games) — Groenewold usually continues Nf3 (50.0% score)
- …d5 (21% of these games) — Groenewold usually continues Nf3 (60.0% score)
- …e6 (8% of these games) — Groenewold usually continues c4 (50.0% score)
- 1.Nf3 — 20% of White games, 62.5% score
- …Nf6 (38% of these games) — Groenewold usually continues g3 (50.0% score)
- …c5 (25% of these games) — Groenewold usually continues g3 (66.7% score)
- …d5 (25% of these games) — Groenewold usually continues c4 (50.0% score)
As Black against 1.e4 (52 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 28 | 53.8% | 41.1% |
| e5 | 13 | 25.0% | 38.5% |
| Nf6 | 7 | 13.5% | 28.6% |
| c6 | 1 | 1.9% | 0.0% |
| b6 | 1 | 1.9% | 0.0% |
| g6 | 1 | 1.9% | 0.0% |
As Black against 1.d4 (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 14 | 77.8% | 60.7% |
| f5 | 3 | 16.7% | 66.7% |
| c5 | 1 | 5.6% | 50.0% |
Jan Joris Groenewold's chess games
All 158 games by Jan Joris Groenewold in the Chess.ceo database (Oct 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: 61 wins, 33 draws, 64 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E01 | Catalan | 14 | 8/1/5 | 57.1% |
| E90 | Indian Defense | 10 | 2/3/5 | 20.0% |
| A04 | Réti Opening | 7 | 3/0/4 | 42.9% |
| A57 | Benoni Defense | 6 | 2/2/2 | 33.3% |
| A03 | Bird's opening | 6 | 1/1/4 | 16.7% |
| D02 | Queen's Pawn Game | 5 | 2/1/2 | 40.0% |
| E90 | King's Indian Defense | 4 | 0/3/1 | 0.0% |
| E73 | King's Indian Defense: Averbakh System | 3 | 1/0/2 | 33.3% |
| A10 | English Opening | 3 | 3/0/0 | 100.0% |
| E18 | Queen's Indian Defense | 3 | 3/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B46 | Sicilian | 18 | 6/0/12 | 33.3% |
| B03 | Alekhine Defense | 7 | 0/4/3 | 0.0% |
| A81 | Dutch Defense | 6 | 3/0/3 | 50.0% |
| B23 | Sicilian: Closed | 4 | 0/3/1 | 0.0% |
| B22 | Sicilian: Alapin | 4 | 3/0/1 | 75.0% |
| E11 | Bogo-Indian Defense | 4 | 1/0/3 | 25.0% |
| C41 | Philidor | 4 | 0/0/4 | 0.0% |
| C55 | Italian Game | 3 | 1/0/2 | 33.3% |
| E32 | Nimzo-Indian: Classical Variation | 3 | 2/1/0 | 66.7% |
| A88 | English Opening: Dutch Defense | 2 | 0/1/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2011 | Romain Picard | 2,351 | Groningen Atlantis IM | E12 |
| Oct 2008 | Prasanna Raghuram Rao | 2,311 | Hoogeveen Essent Open | E04 |
| Apr 2013 | Michael Coenen | 2,308 | Oberhausen Open | E18 |
| Dec 2009 | Marcel Racherbaeumer | 2,301 | Groningen Open A | C36 |
| Sep 2007 | Sjef Rijnaarts | 2,292 | Arnhem Open | E01 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Groningen Open A | 2009 | 18 | 10.5 | 2,327 |
| Hengelo U16 Open | 1998 | 18 | 9 | – |
| Hoogeveen Essent Open | 2008 | 17 | 5.5 | 2,103 |
| Groningen Atlantis IM | 2011 | 9 | 2 | 2,107 |
| NED U20 Open | 1999 | 9 | 6 | 2,403 |
| ch-NED U20 Open | 2000 | 9 | 5 | 2,114 |
| Groningen-B | 2009 | 9 | 6 | 2,279 |
| Groningen Harmonie Open B | 2007 | 8 | 5.5 | 2,110 |
Interactive opening tree from all 158 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jan Joris Groenewold's chess games?
158 games by Jan Joris Groenewold, from Oct 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 Jan Joris Groenewold has played.
What does Jan Joris Groenewold play on the first move as White?
Across 80 games with White in our database, Jan Joris Groenewold opens with 1.d4 (66% of games), 1.Nf3 (20% of games), 1.f4 (9% of games). Against 1.e4 as Black, Jan Joris Groenewold answers 1...c5 (54% of games), 1...e5 (25% of games), 1...Nf6 (13% of games). Against 1.d4: 1...Nf6 (78% of games), 1...f5 (17% of games), 1...c5 (6% of games).
What openings does Jan Joris Groenewold play as White?
As White, Jan Joris Groenewold's most-played openings in our database are: Catalan (14 games, 57.1% win rate); Indian Defense (10 games, 20.0% win rate); Réti Opening (7 games, 42.9% win rate). The full breakdown of 80 games with White is in the table above.
What openings does Jan Joris Groenewold play as Black?
As Black, Jan Joris Groenewold most often plays: Sicilian (18 games, 33.3% win rate); Alekhine Defense (7 games, 0.0% win rate); Dutch Defense (6 games, 50.0% win rate). See the table above for the top ten Black openings across 78 games.
What is Jan Joris Groenewold's FIDE rating?
Jan Joris Groenewold is currently rated 2,081 in classical chess, 2,092 in rapid. Peak classical rating: 2,189 (Jul 2010).
How many games has Jan Joris Groenewold played?
Our database contains 158 games by Jan Joris Groenewold, covering Oct 2004 to Jul 2026. Overall record: 61 wins, 33 draws, 64 losses (38.6% win rate).
How do I prepare against Jan Joris Groenewold?
158 games by Jan Joris Groenewold 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.