Prepare against Jiri Trefilik
Czechia · World #109,428 classical · FIDE ID 23724390
When preparing against Jiri Trefilik, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...e5 (100% of games); against 1.d4, 1...d5 (60%).
Our database contains 37 games by Jiri Trefilik, covering Feb 2018 to Jul 2026. Below you'll find Jiri Trefilik's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jiri Trefilik 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 | 1,703 | 1,757 | Jan 2025 |
| Rapid | 1,727 | 1,727 | Jul 2026 |
| Blitz | 1,693 | 1,693 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 37 | 12 | 7 | 18 | 32.4% |
| As White | 19 | 7 | 5 | 7 | 36.8% |
| As Black | 18 | 5 | 2 | 11 | 27.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jiri Trefilik's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jiri Trefilik's side.
First moves as White (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 19 | 100.0% | 50.0% |
Main lines as White
- 1.e4 — 100% of White games, 50.0% score
- …c5 (53% of these games) — Trefilik usually continues Nc3 (40.0% score)
- …c6 (21% of these games) — Trefilik usually continues d4 (37.5% score)
- …e5 (11% of these games) — Trefilik usually continues Nf3 (100.0% score)
As Black against 1.e4 (8 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 8 | 100.0% | 43.8% |
As Black against 1.d4 (5 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 3 | 60.0% | 16.7% |
| f5 | 2 | 40.0% | 0.0% |
Jiri Trefilik's chess games
All 37 games by Jiri Trefilik in the Chess.ceo database (Feb 2018 - 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: 12 wins, 7 draws, 18 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B23 | Sicilian: Closed | 10 | 3/2/5 | 30.0% |
| B12 | Caro-Kann: Advance Variation | 2 | 0/1/1 | 0.0% |
| C00 | King's Indian Attack | 2 | 1/1/0 | 50.0% |
| C50 | Italian Game | 1 | 1/0/0 | 100.0% |
| B15 | Caro-Kann | 1 | 1/0/0 | 100.0% |
| B07 | Modern Defense | 1 | 0/1/0 | 0.0% |
| C43 | Petrov's Defense | 1 | 1/0/0 | 100.0% |
| B12 | Caro-Kann: Fantasy Variation | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A25 | English Opening: Reverse Sicilian | 4 | 2/0/2 | 50.0% |
| C60 | Ruy Lopez | 4 | 2/0/2 | 50.0% |
| C50 | Italian Game | 2 | 1/0/1 | 50.0% |
| C45 | Scotch Game | 2 | 0/1/1 | 0.0% |
| A85 | Dutch Defense | 2 | 0/0/2 | 0.0% |
| D02 | London System | 1 | 0/1/0 | 0.0% |
| D08 | Albin Countergambit | 1 | 0/0/1 | 0.0% |
| A05 | Nimzovich-Larsen attack | 1 | 0/0/1 | 0.0% |
| A81 | Queen's Pawn Game | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2022 | Viktor Fedorov | 2,046 | Prague Golden Open | B15 |
| Aug 2019 | Roman Skurihin | 1,887 | 6th Prague Summer Open B | C50 |
| Jan 2020 | Andre Jaeger | 1,850 | Prague Open B 19th | B23 |
| Jul 2021 | Martin Rell | 1,753 | Prague Golden Open | A25 |
| Jul 2022 | Daniel Svoboda | 1,679 | Prague Golden Open | C60 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Prague Golden Open | 2022 | 14 | 8 | 1,701 |
| Prague-F | 2019 | 8 | 4 | 1,609 |
| Prague Open B 19th | 2020 | 5 | 1.5 | 1,672 |
| 6th Prague Summer Open B | 2019 | 3 | 1.5 | 1,869 |
| 1st Prague Autumn Open | 2021 | 3 | 0 | 1,571 |
| 18th Prague Open B | 2019 | 2 | 0.5 | 1,740 |
| 9th Prague Summer Open B | 2022 | 1 | 0 | 1,425 |
| 20th Prague Open B | 2022 | 1 | 0 | 1,230 |
Interactive opening tree from all 37 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jiri Trefilik's chess games?
37 games by Jiri Trefilik, from Feb 2018 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 Jiri Trefilik has played.
What does Jiri Trefilik play on the first move as White?
Across 19 games with White in our database, Jiri Trefilik opens with 1.e4 (100% of games). Against 1.e4 as Black, Jiri Trefilik answers 1...e5 (100% of games). Against 1.d4: 1...d5 (60% of games), 1...f5 (40% of games).
What openings does Jiri Trefilik play as White?
As White, Jiri Trefilik's most-played openings in our database are: Sicilian: Closed (10 games, 30.0% win rate); Caro-Kann: Advance Variation (2 games, 0.0% win rate); King's Indian Attack (2 games, 50.0% win rate). The full breakdown of 19 games with White is in the table above.
What openings does Jiri Trefilik play as Black?
As Black, Jiri Trefilik most often plays: English Opening: Reverse Sicilian (4 games, 50.0% win rate); Ruy Lopez (4 games, 50.0% win rate); Italian Game (2 games, 50.0% win rate). See the table above for the top ten Black openings across 18 games.
What is Jiri Trefilik's FIDE rating?
Jiri Trefilik is currently rated 1,703 in classical chess, 1,727 in rapid and 1,693 in blitz. Peak classical rating: 1,757 (Jan 2025).
How many games has Jiri Trefilik played?
Our database contains 37 games by Jiri Trefilik, covering Feb 2018 to Jul 2026. Overall record: 12 wins, 7 draws, 18 losses (32.4% win rate).
How do I prepare against Jiri Trefilik?
37 games by Jiri Trefilik 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.