Prepare against Jan Grewenig
DEU · World #19,083 classical · FIDE ID 4657330
Our database contains 243 games by Jan Grewenig, covering Oct 2008 to Jul 2026. Below you'll find Jan Grewenig's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jan Grewenig 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 | 2,065 | 2,155 | Feb 2019 |
| Rapid | 2,056 | 2,126 | May 2017 |
| Blitz | 2,291 | 2,305 | Dec 2019 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 243 | 102 | 61 | 80 | 42.0% |
| As White | 122 | 49 | 41 | 32 | 40.2% |
| As Black | 121 | 53 | 20 | 48 | 43.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jan Grewenig's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jan Grewenig's side.
First moves as White (122 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 118 | 96.7% | 55.9% |
| Nf3 | 2 | 1.6% | 100.0% |
| b4 | 1 | 0.8% | 50.0% |
| g3 | 1 | 0.8% | 100.0% |
Main lines as White
- 1.e4 — 97% of White games, 55.9% score
- …c5 (47% of these games) — Grewenig usually continues Nf3 (51.9% score)
- …e5 (22% of these games) — Grewenig usually continues Nf3 (63.5% score)
- …e6 (17% of these games) — Grewenig usually continues d4 (58.8% score)
- 1.Nf3 — 2% of White games, 100.0% score
- …Nc6 (50% of these games) — Grewenig usually continues e4 (100.0% score)
- …Nf6 (50% of these games) — Grewenig usually continues d4 (100.0% score)
As Black against 1.e4 (56 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 53 | 94.6% | 57.5% |
| d5 | 2 | 3.6% | 25.0% |
| b6 | 1 | 1.8% | 100.0% |
As Black against 1.d4 (46 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 33 | 71.7% | 50.0% |
| d5 | 10 | 21.7% | 40.0% |
| b6 | 1 | 2.2% | 50.0% |
| g6 | 1 | 2.2% | 50.0% |
| c5 | 1 | 2.2% | 0.0% |
Jan Grewenig's chess games
All 243 games by Jan Grewenig in the Chess.ceo database (Oct 2008 - 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: 102 wins, 61 draws, 80 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 26 | 5/12/9 | 19.2% |
| C45 | Scotch Game | 24 | 13/5/6 | 54.2% |
| B97 | Sicilian: Najdorf | 13 | 8/3/2 | 61.5% |
| C05 | French: Tarrasch Variation | 12 | 4/6/2 | 33.3% |
| B77 | Sicilian: Dragon | 8 | 1/2/5 | 12.5% |
| B10 | Caro-Kann | 5 | 3/1/1 | 60.0% |
| C00 | French Defense | 4 | 2/2/0 | 50.0% |
| B33 | Sicilian: Sveshnikov | 4 | 2/0/2 | 50.0% |
| B35 | Sicilian: Accelerated Dragon | 3 | 2/1/0 | 66.7% |
| B07 | Pirc Defense | 3 | 0/1/2 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B35 | Sicilian: Accelerated Dragon | 15 | 8/2/5 | 53.3% |
| B90 | Sicilian: Najdorf | 13 | 6/3/4 | 46.2% |
| A57 | Benoni Defense | 13 | 6/2/5 | 46.2% |
| B50 | Sicilian | 10 | 4/3/3 | 40.0% |
| A39 | English Opening | 7 | 3/2/2 | 42.9% |
| E20 | Indian Defense | 7 | 2/0/5 | 28.6% |
| D07 | Queen's Gambit | 6 | 2/0/4 | 33.3% |
| B23 | Sicilian: Closed | 5 | 3/0/2 | 60.0% |
| A30 | English Opening: Symmetrical | 4 | 2/0/2 | 50.0% |
| A48 | London System | 4 | 2/1/1 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Dec 2019 | Pavel Potapov | 2,464 | ch-EU blitz | B32 |
| Dec 2019 | Georg Mohr | 2,424 | ch-EU rapid | B00 |
| Nov 2016 | Theo Hommeles | 2,384 | BL2-Sued 1617 | B90 |
| Nov 2013 | Oliver Bewersdorff | 2,302 | BL2-Sued 1314 | A57 |
| Mar 2008 | Dmitrij Morenko | 2,282 | ch-Saarland A | C00 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-GER U10 | 2006 | 22 | 13.5 | 1,386 |
| chT-GER Lands U20 | 2013 | 18 | 11 | 2,031 |
| chT-GER U14 | 2009 | 14 | 7 | 1,809 |
| ch-GER U12 | 2008 | 11 | 6.5 | 1,738 |
| Oberliga Sued W 1718 | 2018 | 10 | 7 | 2,257 |
| ch-GER U25 Open A | 2013 | 9 | 6.5 | 2,142 |
| ch-GER U16 | 2012 | 9 | 5.5 | 2,193 |
| ch-GER U14 | 2009 | 9 | 4 | 1,829 |
Interactive opening tree from all 243 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jan Grewenig's chess games?
243 games by Jan Grewenig, from Oct 2008 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 Grewenig has played.
What does Jan Grewenig play on the first move as White?
Across 122 games with White in our database, Jan Grewenig opens with 1.e4 (97% of games), 1.Nf3 (2% of games), 1.b4 (1% of games). Against 1.e4 as Black, Jan Grewenig answers 1...c5 (95% of games), 1...d5 (4% of games), 1...b6 (2% of games). Against 1.d4: 1...Nf6 (72% of games), 1...d5 (22% of games), 1...b6 (2% of games).
What openings does Jan Grewenig play as White?
As White, Jan Grewenig's most-played openings in our database are: Sicilian (26 games, 19.2% win rate); Scotch Game (24 games, 54.2% win rate); Sicilian: Najdorf (13 games, 61.5% win rate). The full breakdown of 122 games with White is in the table above.
What openings does Jan Grewenig play as Black?
As Black, Jan Grewenig most often plays: Sicilian: Accelerated Dragon (15 games, 53.3% win rate); Sicilian: Najdorf (13 games, 46.2% win rate); Benoni Defense (13 games, 46.2% win rate). See the table above for the top ten Black openings across 121 games.
What is Jan Grewenig's FIDE rating?
Jan Grewenig is currently rated 2,065 in classical chess, 2,056 in rapid and 2,291 in blitz. Peak classical rating: 2,155 (Feb 2019).
How many games has Jan Grewenig played?
Our database contains 243 games by Jan Grewenig, covering Oct 2008 to Jul 2026. Overall record: 102 wins, 61 draws, 80 losses (42.0% win rate).
How do I prepare against Jan Grewenig?
243 games by Jan Grewenig 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.