Prepare against Thierry Dumortier
France · World #70,876 classical · FIDE ID 642312
When preparing against Thierry Dumortier, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...Nf6 (100% of games); against 1.d4, 1...f5 (100%). Lowest win rate among frequent openings: Alekhine Defense as Black, 25.0% over 16 games.
Our database contains 39 games by Thierry Dumortier, covering Jul 2004 to Jul 2026. Below you'll find Thierry Dumortier's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Thierry Dumortier 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 | 1,818 | 2,019 | Jul 2004 |
| Rapid | 1,776 | 1,838 | Nov 2018 |
| Blitz | 1,860 | 1,862 | Dec 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 39 | 9 | 13 | 17 | 23.1% |
| As White | 15 | 4 | 6 | 5 | 26.7% |
| As Black | 24 | 5 | 7 | 12 | 20.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Thierry Dumortier's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Thierry Dumortier's side.
First moves as White (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 15 | 100.0% | 46.7% |
Main lines as White
- 1.e4 — 100% of White games, 46.7% score
- …c5 (60% of these games) — Dumortier usually continues Nf3 (43.8% score)
- …e5 (20% of these games) — Dumortier usually continues Nf3 (25.0% score)
- …d6 (7% of these games) — Dumortier usually continues d4 (50.0% score)
As Black against 1.e4 (16 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 16 | 100.0% | 40.6% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| f5 | 4 | 100.0% | 50.0% |
Thierry Dumortier's chess games
All 39 games by Thierry Dumortier in the Chess.ceo database (Jul 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: 9 wins, 13 draws, 17 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B45 | Sicilian: Four Knights | 2 | 1/1/0 | 50.0% |
| C05 | French: Tarrasch Variation | 1 | 0/0/1 | 0.0% |
| C54 | Italian Game | 1 | 0/0/1 | 0.0% |
| C54 | Italian Game: Classical Variation | 1 | 1/0/0 | 100.0% |
| C54 | Italian Game: Giuoco Pianissimo | 1 | 0/1/0 | 0.0% |
| B07 | Pirc Defense | 1 | 0/1/0 | 0.0% |
| B47 | Sicilian | 1 | 0/1/0 | 0.0% |
| B34 | Sicilian: Accelerated Dragon | 1 | 1/0/0 | 100.0% |
| B25 | Sicilian: Closed | 1 | 1/0/0 | 100.0% |
| B90 | Sicilian: Dragon | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B04 | Alekhine Defense | 16 | 4/5/7 | 25.0% |
| A80 | Dutch Defense | 7 | 1/2/4 | 14.3% |
| A85 | English Opening: Dutch Defense | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2002 | Jean-Pierre Degraeve | 2,130 | chT3-FRA Gr8 0203 | B05 |
| Nov 2002 | Philippe Chabant | 2,090 | chT3-FRA Gr8 0203 | B04 |
| Dec 2003 | Jurgen Warkentin | 2,008 | chT3-FRA North 0304 | A80 |
| Oct 2003 | Thomas Dubuisson | 1,916 | chT3-FRA North 0304 | D94 |
| Feb 2003 | Vincent Barski | 1,860 | chT3-FRA Gr8 0203 | B04 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| chT3-FRA Gr8 0203 | 2003 | 9 | 3.5 | 1,913 |
| 3rd La Fere Open | 2004 | 8 | 4 | 2,330 |
| chT3-FRA North 0304 | 2004 | 8 | 4 | 1,984 |
| 2nd La Fere Open | 2003 | 6 | 2.5 | 2,109 |
| 1st La Fere Open | 2002 | 5 | 1 | 2,013 |
| Issy les Moulineaux tt | 2008 | 3 | 0.5 | 1,802 |
Interactive opening tree from all 39 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Thierry Dumortier's chess games?
39 games by Thierry Dumortier, from Jul 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 Thierry Dumortier has played.
What does Thierry Dumortier play on the first move as White?
Across 15 games with White in our database, Thierry Dumortier opens with 1.e4 (100% of games). Against 1.e4 as Black, Thierry Dumortier answers 1...Nf6 (100% of games). Against 1.d4: 1...f5 (100% of games).
What openings does Thierry Dumortier play as White?
As White, Thierry Dumortier's most-played openings in our database are: Sicilian: Four Knights (2 games, 50.0% win rate); French: Tarrasch Variation (1 games, 0.0% win rate); Italian Game (1 games, 0.0% win rate). The full breakdown of 15 games with White is in the table above.
What openings does Thierry Dumortier play as Black?
As Black, Thierry Dumortier most often plays: Alekhine Defense (16 games, 25.0% win rate); Dutch Defense (7 games, 14.3% win rate); English Opening: Dutch Defense (1 games, 0.0% win rate). See the table above for the top ten Black openings across 24 games.
What is Thierry Dumortier's FIDE rating?
Thierry Dumortier is currently rated 1,818 in classical chess, 1,776 in rapid and 1,860 in blitz. Peak classical rating: 2,019 (Jul 2004).
How many games has Thierry Dumortier played?
Our database contains 39 games by Thierry Dumortier, covering Jul 2004 to Jul 2026. Overall record: 9 wins, 13 draws, 17 losses (23.1% win rate).
How do I prepare against Thierry Dumortier?
39 games by Thierry Dumortier 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.