Prepare against Rudolf Jun
FM · Czechia · World #2,802 classical · FIDE ID 376612
Our database contains 511 games by Rudolf Jun, covering May 2014 to Aug 2026. Below you'll find Rudolf Jun's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Rudolf Jun 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 | 2,345 | 2,345 | Aug 2026 |
| Rapid | 2,231 | 2,231 | Aug 2026 |
| Blitz | 2,208 | 2,246 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 511 | 165 | 177 | 169 | 32.3% |
| As White | 256 | 104 | 89 | 63 | 40.6% |
| As Black | 255 | 61 | 88 | 106 | 23.9% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Rudolf Jun's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Rudolf Jun's side.
First moves as White (256 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 245 | 95.7% | 57.3% |
| Nf3 | 7 | 2.7% | 64.3% |
| d4 | 2 | 0.8% | 100.0% |
| c4 | 1 | 0.4% | 100.0% |
| b3 | 1 | 0.4% | 50.0% |
Main lines as White
- 1.e4 — 96% of White games, 57.3% score
- …c5 (40% of these games) — Jun usually continues Nf3 (56.1% score)
- …e5 (19% of these games) — Jun usually continues Nf3 (62.2% score)
- …c6 (14% of these games) — Jun usually continues d4 (40.7% score)
- 1.Nf3 — 3% of White games, 64.3% score
- …d5 (57% of these games) — Jun usually continues g3 (50.0% score)
- …f5 (14% of these games) — Jun usually continues d4 (100.0% score)
- …g6 (14% of these games) — Jun usually continues e4 (50.0% score)
As Black against 1.e4 (124 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 120 | 96.8% | 43.8% |
| e6 | 3 | 2.4% | 50.0% |
| d6 | 1 | 0.8% | 0.0% |
As Black against 1.d4 (83 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 79 | 95.2% | 41.1% |
| d5 | 1 | 1.2% | 0.0% |
| b6 | 1 | 1.2% | 0.0% |
| b5 | 1 | 1.2% | 0.0% |
Rudolf Jun's chess games
All 511 games by Rudolf Jun in the Chess.ceo database (May 2014 - 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: 165 wins, 177 draws, 169 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B40 | Sicilian | 54 | 19/21/14 | 35.2% |
| B51 | Sicilian: Moscow Variation | 28 | 12/11/5 | 42.9% |
| B13 | Caro-Kann: Exchange Variation | 22 | 6/5/11 | 27.3% |
| C07 | French: Tarrasch Variation | 15 | 7/6/2 | 46.7% |
| C47 | Four Knights Game: Scotch Variation | 12 | 2/7/3 | 16.7% |
| B06 | Pirc Defense | 11 | 4/5/2 | 36.4% |
| C00 | French Defense | 10 | 8/0/2 | 80.0% |
| B31 | Sicilian: Rossolimo | 9 | 6/1/2 | 66.7% |
| B10 | Caro-Kann | 8 | 5/2/1 | 62.5% |
| B06 | Modern Defense | 7 | 1/3/3 | 14.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B33 | Sicilian: Sveshnikov | 31 | 7/12/12 | 22.6% |
| B22 | Sicilian | 30 | 7/9/14 | 23.3% |
| B31 | Sicilian: Rossolimo | 25 | 6/8/11 | 24.0% |
| A36 | English Opening | 18 | 4/6/8 | 22.2% |
| B23 | Sicilian: Closed | 17 | 6/3/8 | 35.3% |
| E69 | Indian Defense | 17 | 3/6/8 | 17.6% |
| B80 | Sicilian: Scheveningen | 8 | 3/3/2 | 37.5% |
| E97 | King's Indian Defense: Orthodox Variation | 8 | 1/3/4 | 12.5% |
| A49 | Réti Opening: Symmetrical Defense | 8 | 1/2/5 | 12.5% |
| B22 | Sicilian: Alapin | 7 | 2/4/1 | 28.6% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2024 | Markus Ragger | 2,603 | Titled Tue Late | C68 |
| Sep 2024 | Sai Krishna G V | 2,402 | Titled Tue Late | B52 |
| Aug 2025 | E Rosen | 2,377 | Titled Tue Late | C47 |
| May 2024 | Arseny Alavkin | 2,368 | Titled Tue Early | B30 |
| Dec 2023 | Tomas Vojta | 2,366 | Svetla nad Sazavou Mares Memorial | B21 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 62 | 30.5 | 2,272 |
| ch-CZE | 2022 | 27 | 12.5 | 2,223 |
| ch-CZE Amateur | 2023 | 17 | 12 | 2,137 |
| ch-CZE U12 | 2017 | 14 | 7 | 1,647 |
| ch-CZE U20 | 2023 | 11 | 5 | 2,206 |
| chT2D-CZE 1819 | 2019 | 11 | 7 | 2,131 |
| chT1E-CZE 2122 | 2022 | 11 | 5 | 2,236 |
| ch-CZE U18 | 2024 | 11 | 6 | 2,245 |
Interactive opening tree from all 511 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Rudolf Jun's chess games?
511 games by Rudolf Jun, from May 2014 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 Rudolf Jun has played.
What does Rudolf Jun play on the first move as White?
Across 256 games with White in our database, Rudolf Jun opens with 1.e4 (96% of games), 1.Nf3 (3% of games), 1.d4 (1% of games). Against 1.e4 as Black, Rudolf Jun answers 1...c5 (97% of games), 1...e6 (2% of games), 1...d6 (1% of games). Against 1.d4: 1...Nf6 (95% of games), 1...d5 (1% of games), 1...b6 (1% of games).
What openings does Rudolf Jun play as White?
As White, Rudolf Jun's most-played openings in our database are: Sicilian (54 games, 35.2% win rate); Sicilian: Moscow Variation (28 games, 42.9% win rate); Caro-Kann: Exchange Variation (22 games, 27.3% win rate). The full breakdown of 256 games with White is in the table above.
What openings does Rudolf Jun play as Black?
As Black, Rudolf Jun most often plays: Sicilian: Sveshnikov (31 games, 22.6% win rate); Sicilian (30 games, 23.3% win rate); Sicilian: Rossolimo (25 games, 24.0% win rate). See the table above for the top ten Black openings across 255 games.
What is Rudolf Jun's FIDE rating?
Rudolf Jun is currently rated 2,345 in classical chess, 2,231 in rapid and 2,208 in blitz. Peak classical rating: 2,345 (Aug 2026).
How many games has Rudolf Jun played?
Our database contains 511 games by Rudolf Jun, covering May 2014 to Aug 2026. Overall record: 165 wins, 177 draws, 169 losses (32.3% win rate).
How do I prepare against Rudolf Jun?
511 games by Rudolf Jun 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.