Chess festival Ceske Budejovice 2025 - GM - A
10 players participated in this 9-round tournament, held from 28 Jun 2025 to 06 Jul 2025 in Ceske Budejovice, Czech Republic. 10 titled players from 6 federations. Top 10 Elo average was 2483, and top seed was Anton Korobov (🇺🇦 UKR, GM, 2631).
Alexander Donchenko (🇩🇪 GER, GM, 2613) won with 7.0/9, ahead of Anton Korobov (6.0) and Or Bronstein (6.0). Donchenko shared the lead from round 5 and won solo starting round 8.
The biggest upset came in round 1: Magnus Ermitsch (IM, 2406) beat Jergus Pechac (GM, 2604), a +198-point gap.
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How it unfolded
Top 10 · 9 roundsGM Alexander Donchenko led from R8 onwards, the runner-up race stayed tight. Title race converged from 2 co-leaders at R4 to 1 by R8.
GM Alexander Donchenko takes the sole lead (6.5/8).
GM Alexander Donchenko lost to GM Anton Korobov (Black).
GM Alexander Donchenko won 4 in a row (R5–R8).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇩🇪GMDonchenko, Alexander | 2613 | * | 0 | 1 | 1 | 1 | ½ | ½ | 1 | 1 | 1 | 7.0 | 27.75 | 38.0 | +8.3 | 2689 |
| 2 | 🇺🇦GMKorobov, Anton | 2631 | 1 | * | ½ | 0 | ½ | 1 | 1 | ½ | ½ | 1 | 6.0 | 25.25 | 39.0 | -3.8 | 2592 |
| 3 | 🇮🇱IMBronstein, Or | 2443 | 0 | ½ | * | ½ | 1 | ½ | 1 | ½ | 1 | 1 | 6.0 | 22.00 | 39.0 | +20.1 | 2612 |
| 4 | 🇸🇰GMHaring, Filip | 2466 | 0 | 1 | ½ | * | ½ | 1 | ½ | ½ | 1 | ½ | 5.5 | 22.50 | 39.5 | +12.3 | 2565 |
| 5 | 🇩🇪IMErmitsch, Magnus | 2406 | 0 | ½ | 0 | ½ | * | ½ | ½ | 1 | 1 | ½ | 4.5 | 16.75 | 40.5 | +10.0 | 2492 |
| 6 | 🇵🇱IMCieslak, Patryk | 2442 | ½ | 0 | ½ | 0 | ½ | * | ½ | ½ | 1 | 1 | 4.5 | 16.25 | 40.5 | +5.3 | 2488 |
| 8 | 🇸🇰IMSahidi, Samir | 2481 | ½ | 0 | 0 | ½ | ½ | ½ | * | 1 | ½ | ½ | 4.0 | 16.50 | 41.0 | -4.7 | 2440 |
| 7 | 🇨🇿IMRubes, Jan | 2426 | 0 | ½ | ½ | ½ | 0 | ½ | 0 | * | 1 | 1 | 4.0 | 14.50 | 41.0 | +2.3 | 2446 |
| 9 | 🇸🇰GMPechac, Jergus | 2604 | 0 | ½ | 0 | 0 | 0 | 0 | ½ | 0 | * | 1 | 2.0 | 6.50 | 43.0 | -40.6 | 2250 |
| 10 | 🇨🇿FMZeman, Matyas | 2318 | 0 | 0 | 0 | ½ | ½ | 0 | ½ | 0 | 0 | * | 1.5 | 7.00 | 43.5 | -18.4 | 2228 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Bronstein, OrIMISR+20.16.0 pts · #3
- 2Haring, FilipGMSVK+12.35.5 pts · #4
- 3Ermitsch, MagnusIMGER+10.04.5 pts · #5
- 1Pechac, JergusGMSVK-40.62.0 pts · #9
- 2Zeman, MatyasFMCZE-18.41.5 pts · #10
- 3Sahidi, SamirIMSVK-4.74.0 pts · #8
- R1+198 Elo gap
- R4+178 Elo gap
- R4+165 Elo gap