Prepare against Sam Decoster
Belgium · World #14,158 classical · FIDE ID 209449
Our database contains 59 games by Sam Decoster, covering Sep 2016 to Aug 2026. Below you'll find Sam Decoster's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sam Decoster 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 | 2,114 | 2,132 | Mar 2025 |
| Rapid | 1,984 | 1,984 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 59 | 27 | 12 | 20 | 45.8% |
| As White | 30 | 14 | 6 | 10 | 46.7% |
| As Black | 29 | 13 | 6 | 10 | 44.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sam Decoster's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sam Decoster's side.
First moves as White (30 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 8 | 26.7% | 43.8% |
| e4 | 8 | 26.7% | 62.5% |
| c4 | 6 | 20.0% | 66.7% |
| Nf3 | 4 | 13.3% | 62.5% |
| a3 | 3 | 10.0% | 66.7% |
| g3 | 1 | 3.3% | 0.0% |
Main lines as White
- 1.d4 — 27% of White games, 43.8% score
- …Nf6 (75% of these games) — Decoster usually continues Nc3 (33.3% score)
- …f5 (13% of these games) — Decoster usually continues g3 (100.0% score)
- …d5 (13% of these games) — Decoster usually continues c4 (50.0% score)
- 1.e4 — 27% of White games, 62.5% score
- …e6 (38% of these games) — Decoster usually continues d4 (66.7% score)
- …c5 (25% of these games) — Decoster usually continues Nf3 (25.0% score)
- …e5 (25% of these games) — Decoster usually continues Nf3 (100.0% score)
As Black against 1.e4 (23 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 18 | 78.3% | 63.9% |
| e6 | 5 | 21.7% | 40.0% |
As Black against 1.d4 (3 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 2 | 66.7% | 50.0% |
| d5 | 1 | 33.3% | 50.0% |
Sam Decoster's chess games
All 59 games by Sam Decoster in the Chess.ceo database (Sep 2016 - Aug 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: 27 wins, 12 draws, 20 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C05 | French: Tarrasch Variation | 3 | 1/2/0 | 33.3% |
| A00 | Anderssen's opening | 3 | 2/0/1 | 66.7% |
| C10 | Indian Defense | 3 | 1/0/2 | 33.3% |
| D15 | Slav Defense | 2 | 0/2/0 | 0.0% |
| A18 | English Opening: Mikenas Variation | 2 | 1/0/1 | 50.0% |
| A08 | Réti Opening | 2 | 1/0/1 | 50.0% |
| C45 | Scotch Game | 2 | 2/0/0 | 100.0% |
| A25 | English Opening: Reverse Sicilian | 1 | 1/0/0 | 100.0% |
| A16 | English Opening | 1 | 1/0/0 | 100.0% |
| A81 | Dutch Defense | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B33 | Sicilian | 13 | 8/2/3 | 61.5% |
| B23 | Sicilian: Closed | 3 | 2/0/1 | 66.7% |
| B40 | French Defense | 3 | 1/2/0 | 33.3% |
| A21 | English Opening: Reverse Sicilian | 2 | 1/0/1 | 50.0% |
| A65 | Benoni Defense | 2 | 1/0/1 | 50.0% |
| B33 | Sicilian: Sveshnikov | 1 | 0/1/0 | 0.0% |
| D53 | Slav Defense | 1 | 0/1/0 | 0.0% |
| C02 | French: Advance Variation | 1 | 0/0/1 | 0.0% |
| C01 | French: Exchange Variation | 1 | 0/0/1 | 0.0% |
| A09 | Réti Opening | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2026 | Dardha,A | 2,254 | ch-BEL Open 2026 | A08 |
| Aug 2017 | Sterre Dauw | 1,958 | 17th Brasschaat Open | B40 |
| Aug 2017 | Jozef Van Goethem | 1,830 | 17th Brasschaat Open | A18 |
| Aug 2017 | Jimmy Van Hoorebeke | 1,790 | 17th Brasschaat Open | A81 |
| Aug 2005 | Gert Jan Rauw | 1,789 | Hengelo U12 Open | B14 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Hengelo U12 Open | 2005 | 31 | 17.5 | 1,589 |
| 17th Brasschaat Open | 2017 | 9 | 5.5 | 1,959 |
| ch-BEL U12 | 2004 | 9 | 5.5 | 1,424 |
| ch-BEL U10 | 2002 | 5 | 3 | 1,107 |
| ch-BEL Open 2026 | 2026 | 4 | 1.5 | 2,139 |
| 16th Brasschaat Open | 2016 | 1 | 0 | 1,629 |
Interactive opening tree from all 59 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sam Decoster's chess games?
59 games by Sam Decoster, from Sep 2016 to Aug 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 Sam Decoster has played.
What does Sam Decoster play on the first move as White?
Across 30 games with White in our database, Sam Decoster opens with 1.d4 (27% of games), 1.e4 (27% of games), 1.c4 (20% of games). Against 1.e4 as Black, Sam Decoster answers 1...c5 (78% of games), 1...e6 (22% of games). Against 1.d4: 1...Nf6 (67% of games), 1...d5 (33% of games).
What openings does Sam Decoster play as White?
As White, Sam Decoster's most-played openings in our database are: French: Tarrasch Variation (3 games, 33.3% win rate); Anderssen's opening (3 games, 66.7% win rate); Indian Defense (3 games, 33.3% win rate). The full breakdown of 30 games with White is in the table above.
What openings does Sam Decoster play as Black?
As Black, Sam Decoster most often plays: Sicilian (13 games, 61.5% win rate); Sicilian: Closed (3 games, 66.7% win rate); French Defense (3 games, 33.3% win rate). See the table above for the top ten Black openings across 29 games.
What is Sam Decoster's FIDE rating?
Sam Decoster is currently rated 2,114 in classical chess, 1,984 in rapid. Peak classical rating: 2,132 (Mar 2025).
How many games has Sam Decoster played?
Our database contains 59 games by Sam Decoster, covering Sep 2016 to Aug 2026. Overall record: 27 wins, 12 draws, 20 losses (45.8% win rate).
How do I prepare against Sam Decoster?
59 games by Sam Decoster 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.