Prepare against Thomas Decker
FM · France · World #4,574 classical · FIDE ID 36019380
Our database contains 231 games by Thomas Decker, covering Jul 2014 to Jul 2026. Below you'll find Thomas Decker's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Thomas Decker 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 | 2,318 | Nov 2025 |
| Rapid | 2,138 | 2,185 | Feb 2026 |
| Blitz | 2,196 | 2,200 | Dec 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 231 | 90 | 21 | 120 | 39.0% |
| As White | 114 | 43 | 11 | 60 | 37.7% |
| As Black | 117 | 47 | 10 | 60 | 40.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Thomas Decker's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Thomas Decker's side.
First moves as White (114 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 60 | 52.6% | 35.8% |
| d4 | 34 | 29.8% | 58.8% |
| c4 | 19 | 16.7% | 36.8% |
| Nf3 | 1 | 0.9% | 0.0% |
Main lines as White
- 1.e4 — 53% of White games, 35.8% score
- …c5 (52% of these games) — Decker usually continues Nf3 (36.2% score)
- …e6 (15% of these games) — Decker usually continues d4 (28.6% score)
- …c6 (10% of these games) — Decker usually continues d4 (50.0% score)
- 1.d4 — 30% of White games, 58.8% score
- …Nf6 (56% of these games) — Decker usually continues c4 (50.0% score)
- …d5 (35% of these games) — Decker usually continues c4 (64.3% score)
- …e5 (3% of these games) — Decker usually continues dxe5 (100.0% score)
As Black against 1.e4 (56 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 31 | 55.4% | 46.8% |
| c6 | 18 | 32.1% | 33.3% |
| e5 | 2 | 3.6% | 50.0% |
| e6 | 2 | 3.6% | 75.0% |
| d6 | 1 | 1.8% | 0.0% |
| b6 | 1 | 1.8% | 100.0% |
As Black against 1.d4 (36 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 27 | 75.0% | 50.0% |
| d5 | 9 | 25.0% | 38.9% |
Thomas Decker's chess games
All 231 games by Thomas Decker in the Chess.ceo database (Jul 2014 - 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: 90 wins, 21 draws, 120 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D35 | Indian Defense | 8 | 3/0/5 | 37.5% |
| B30 | Sicilian: Rossolimo | 8 | 4/1/3 | 50.0% |
| A13 | English Opening | 7 | 1/0/6 | 14.3% |
| B40 | Sicilian | 7 | 1/0/6 | 14.3% |
| A20 | English Opening: Reverse Sicilian | 6 | 4/2/0 | 66.7% |
| B12 | Caro-Kann: Advance Variation | 5 | 2/1/2 | 40.0% |
| E94 | King's Indian Defense: Orthodox Variation | 5 | 1/0/4 | 20.0% |
| B13 | London System | 5 | 3/1/1 | 60.0% |
| B52 | Sicilian: Moscow Variation | 5 | 2/0/3 | 40.0% |
| B40 | Sicilian: Four Knights | 4 | 1/0/3 | 25.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A20 | English Opening: Reverse Sicilian | 8 | 1/1/6 | 12.5% |
| B40 | Sicilian | 8 | 2/1/5 | 25.0% |
| A46 | Indian Defense | 7 | 2/0/5 | 28.6% |
| A05 | Réti Opening | 7 | 3/1/3 | 42.9% |
| D00 | Queen's Pawn Game: Chigorin Variation | 6 | 2/1/3 | 33.3% |
| B23 | Sicilian: Closed | 5 | 2/0/3 | 40.0% |
| B12 | Caro-Kann: Advance Variation | 5 | 2/0/3 | 40.0% |
| B40 | Sicilian: Four Knights | 4 | 3/0/1 | 75.0% |
| D02 | Queen's Pawn Game | 4 | 3/1/0 | 75.0% |
| B31 | Sicilian: Rossolimo | 4 | 2/1/1 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Feb 2025 | S RUS Grigoriants | 2,550 | Titled Tue Late | D31 |
| Feb 2025 | Savva Vetokhin | 2,533 | Titled Tue Early | D38 |
| Feb 2025 | Adham Fawzy | 2,513 | Titled Tue Late | E11 |
| Feb 2025 | Vitalii Kiselev | 2,504 | Titled Tue Late | A42 |
| Jan 2025 | Leandro Krysa | 2,491 | Titled Tue Late | B12 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 212 | 94.5 | 2,212 |
| Abu Dhabi Masters Online | 2025 | 5 | 0.5 | 1,987 |
| 17th chT-GER Betriebe | 2017 | 4 | 3.5 | 1,896 |
| Wasselonne Open 25th | 2023 | 3 | 0.5 | 2,121 |
| ch-FRA U18 | 2023 | 2 | 0.5 | 2,181 |
| ch-FRA U16 | 2021 | 2 | 0.5 | 2,045 |
| 39th Cannes Open 2026 | 2026 | 1 | 0.5 | 2,497 |
| Wasselonne Open | 2022 | 1 | 0 | 2,107 |
Interactive opening tree from all 231 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Thomas Decker's chess games?
231 games by Thomas Decker, from Jul 2014 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 Thomas Decker has played.
What does Thomas Decker play on the first move as White?
Across 114 games with White in our database, Thomas Decker opens with 1.e4 (53% of games), 1.d4 (30% of games), 1.c4 (17% of games). Against 1.e4 as Black, Thomas Decker answers 1...c5 (55% of games), 1...c6 (32% of games), 1...e5 (4% of games). Against 1.d4: 1...Nf6 (75% of games), 1...d5 (25% of games).
What openings does Thomas Decker play as White?
As White, Thomas Decker's most-played openings in our database are: Indian Defense (8 games, 37.5% win rate); Sicilian: Rossolimo (8 games, 50.0% win rate); English Opening (7 games, 14.3% win rate). The full breakdown of 114 games with White is in the table above.
What openings does Thomas Decker play as Black?
As Black, Thomas Decker most often plays: English Opening: Reverse Sicilian (8 games, 12.5% win rate); Sicilian (8 games, 25.0% win rate); Indian Defense (7 games, 28.6% win rate). See the table above for the top ten Black openings across 117 games.
What is Thomas Decker's FIDE rating?
Thomas Decker is currently rated 2,286 in classical chess, 2,138 in rapid and 2,196 in blitz. Peak classical rating: 2,318 (Nov 2025).
How many games has Thomas Decker played?
Our database contains 231 games by Thomas Decker, covering Jul 2014 to Jul 2026. Overall record: 90 wins, 21 draws, 120 losses (39.0% win rate).
How do I prepare against Thomas Decker?
231 games by Thomas Decker 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.