Prepare against Guillaume Sermier
IM · CHE · World #4,534 classical · FIDE ID 605832
When preparing against Guillaume Sermier, expect 1.e4 in 59% of White games. Against 1.e4 the reply is 1...e6 (59% of games); against 1.d4, 1...d5 (60%). Lowest win rate among frequent openings: Slav Defense as Black, 14.3% over 21 games.
Our database contains 398 games by Guillaume Sermier, covering Apr 2003 to Sep 2026. Below you'll find Guillaume Sermier's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Guillaume Sermier 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 | 2,286 | 2,428 | Mar 2011 |
| Rapid | 2,362 | 2,380 | May 2018 |
| Blitz | 2,398 | 2,398 | Sep 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 398 | 109 | 190 | 99 | 27.4% |
| As White | 193 | 66 | 83 | 44 | 34.2% |
| As Black | 205 | 43 | 107 | 55 | 21.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Guillaume Sermier's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Guillaume Sermier's side.
First moves as White (193 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 113 | 58.5% | 61.1% |
| Nf3 | 55 | 28.5% | 50.9% |
| d4 | 23 | 11.9% | 43.5% |
| c4 | 1 | 0.5% | 50.0% |
| g3 | 1 | 0.5% | 0.0% |
Main lines as White
- 1.e4 — 59% of White games, 61.1% score
- …c5 (40% of these games) — Sermier usually continues Nf3 (59.3% score)
- …e6 (19% of these games) — Sermier usually continues d4 (61.9% score)
- …e5 (13% of these games) — Sermier usually continues Nf3 (50.0% score)
- 1.Nf3 — 28% of White games, 50.9% score
- …Nf6 (42% of these games) — Sermier usually continues c4 (45.7% score)
- …d5 (36% of these games) — Sermier usually continues d4 (50.0% score)
- …c5 (15% of these games) — Sermier usually continues c4 (62.5% score)
As Black against 1.e4 (90 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 53 | 58.9% | 49.1% |
| c5 | 30 | 33.3% | 58.3% |
| e5 | 4 | 4.4% | 12.5% |
| Nf6 | 2 | 2.2% | 50.0% |
| d6 | 1 | 1.1% | 50.0% |
As Black against 1.d4 (75 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 45 | 60.0% | 38.9% |
| Nf6 | 18 | 24.0% | 41.7% |
| e6 | 6 | 8.0% | 25.0% |
| d6 | 6 | 8.0% | 75.0% |
Guillaume Sermier's chess games
All 398 games by Guillaume Sermier in the Chess.ceo database (Apr 2003 - Sep 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: 109 wins, 190 draws, 99 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B66 | Sicilian | 19 | 7/7/5 | 36.8% |
| A31 | English Opening | 14 | 0/10/4 | 0.0% |
| C18 | French: Winawer Variation | 12 | 7/3/2 | 58.3% |
| E08 | Catalan | 10 | 0/7/3 | 0.0% |
| B06 | Modern Defense | 9 | 4/4/1 | 44.4% |
| E92 | King's Indian Defense: Orthodox Variation | 8 | 5/2/1 | 62.5% |
| C13 | French: Classical Variation | 7 | 1/4/2 | 14.3% |
| A07 | Réti Opening | 7 | 1/4/2 | 14.3% |
| B33 | Sicilian: Sveshnikov | 7 | 4/3/0 | 57.1% |
| A34 | English Opening: Symmetrical | 6 | 2/4/0 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D15 | Slav Defense | 21 | 3/11/7 | 14.3% |
| C18 | French: Winawer Variation | 20 | 6/11/3 | 30.0% |
| C07 | French: Tarrasch Variation | 13 | 2/5/6 | 15.4% |
| C02 | French: Advance Variation | 12 | 3/5/4 | 25.0% |
| D11 | Queen's Pawn Game | 10 | 1/8/1 | 10.0% |
| D31 | Semi-Slav Defense | 9 | 3/1/5 | 33.3% |
| B64 | Sicilian | 8 | 2/5/1 | 25.0% |
| E11 | Bogo-Indian Defense | 8 | 1/5/2 | 12.5% |
| B71 | Sicilian: Najdorf | 8 | 3/5/0 | 37.5% |
| D06 | Queen's Gambit | 7 | 1/3/3 | 14.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2010 | Jean-Marc Degraeve | 2,562 | chT1-FRA 1011 | E91 |
| Feb 2003 | Joseph G. Gallagher | 2,526 | chT-FRA Gp-B | B07 |
| Jun 2015 | Zoran Jovanovic | 2,520 | 34th Mitropa Cup | E94 |
| Jan 2008 | Cristhian Cruz | 2,508 | 34th Sitges Open | B97 |
| Oct 2009 | Vlastimil Hort | 2,486 | chT-SUI | A06 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| chT-SUI | 2022 | 117 | 54 | 2,409 |
| Biel MTO Open | 1997 | 14 | 6 | 2,300 |
| chT1B-FRA 0607 | 2007 | 11 | 6 | 2,295 |
| chT1A-FRA 0809 | 2009 | 11 | 7 | 2,393 |
| 12th ch-EU | 2011 | 11 | 5.5 | 2,370 |
| Mulhouse IM | 2000 | 10 | 5.5 | 2,381 |
| 111th ch-SUI | 2011 | 9 | 6 | 2,411 |
| chT-FRA | 1996 | 9 | 1.5 | 2,080 |
Interactive opening tree from all 398 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Guillaume Sermier's chess games?
398 games by Guillaume Sermier, from Apr 2003 to Sep 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 Guillaume Sermier has played.
What does Guillaume Sermier play on the first move as White?
Across 193 games with White in our database, Guillaume Sermier opens with 1.e4 (59% of games), 1.Nf3 (28% of games), 1.d4 (12% of games). Against 1.e4 as Black, Guillaume Sermier answers 1...e6 (59% of games), 1...c5 (33% of games), 1...e5 (4% of games). Against 1.d4: 1...d5 (60% of games), 1...Nf6 (24% of games), 1...e6 (8% of games).
What openings does Guillaume Sermier play as White?
As White, Guillaume Sermier's most-played openings in our database are: Sicilian (19 games, 36.8% win rate); English Opening (14 games, 0.0% win rate); French: Winawer Variation (12 games, 58.3% win rate). The full breakdown of 193 games with White is in the table above.
What openings does Guillaume Sermier play as Black?
As Black, Guillaume Sermier most often plays: Slav Defense (21 games, 14.3% win rate); French: Winawer Variation (20 games, 30.0% win rate); French: Tarrasch Variation (13 games, 15.4% win rate). See the table above for the top ten Black openings across 205 games.
What is Guillaume Sermier's FIDE rating?
Guillaume Sermier is currently rated 2,286 in classical chess, 2,362 in rapid and 2,398 in blitz. Peak classical rating: 2,428 (Mar 2011).
How many games has Guillaume Sermier played?
Our database contains 398 games by Guillaume Sermier, covering Apr 2003 to Sep 2026. Overall record: 109 wins, 190 draws, 99 losses (27.4% win rate).
How do I prepare against Guillaume Sermier?
398 games by Guillaume Sermier 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.