MARIENBAD OPEN 2026 - A1
10 players participated in this 9-round tournament, held from 17 Jan 2026 to 24 Jan 2026 in Marianske Lazne, Czech Republic. 10 titled players from 8 federations. Top 10 Elo average was 2388, and top seed was Anton Korobov (🇺🇦 UKR, GM, 2595).
Anton Korobov (🇺🇦 UKR, GM, 2595) won with 7.5/9, ahead of Amina Kairbekova (5.5) and Khuyagtsogt Itgelt (5.5). Korobov took the lead from round 5.
The biggest upset came in round 6: Katharina Ricken (WFM, 2180) beat Amina Kairbekova (WGM, 2348), a +168-point gap.
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How it unfolded
Top 10 · 9 roundsGM Anton Korobov led from R5 onwards, the title was decided early.
GM Anton Korobov takes the sole lead (4.0/5).
GM Anton Korobov opens a +1.5-point gap over the chasing pack (closest: IM Khuyagtsogt Itgelt); the title is out of reach before R9.
GM Anton Korobov beat IM Khuyagtsogt Itgelt (Black).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇺🇦GMKorobov, Anton | 2595 | * | 1 | 1 | 1 | ½ | ½ | ½ | 1 | 1 | 1 | 7.5 | 31.50 | 37.5 | +4.7 | 2639 |
| 3 | 🇰🇿WGMKairbekova, Amina | 2348 | 0 | * | ½ | ½ | 1 | ½ | 1 | 1 | 0 | 1 | 5.5 | 22.00 | 39.5 | +30.8 | 2472 |
| 2 | 🇲🇳IMItgelt, Khuyagtsogt | 2445 | 0 | ½ | * | ½ | ½ | ½ | 1 | ½ | 1 | 1 | 5.5 | 21.00 | 39.5 | +2.4 | 2462 |
| 4 | 🇯🇵FMOtsuka, Shou | 2331 | 0 | ½ | ½ | * | ½ | 1 | ½ | 0 | 1 | ½ | 4.5 | 18.00 | 40.5 | +15.0 | 2394 |
| 7 | 🇩🇪FMHeinrich, John | 2366 | ½ | 0 | ½ | ½ | * | ½ | ½ | 1 | ½ | 0 | 4.0 | 18.25 | 41.0 | -4.4 | 2347 |
| 8 | 🇨🇿GMCvek, Robert | 2381 | ½ | ½ | ½ | 0 | ½ | * | ½ | ½ | ½ | ½ | 4.0 | 18.25 | 41.0 | -4.2 | 2346 |
| 5 | 🇮🇸GMStefansson, Hannes | 2427 | ½ | 0 | 0 | ½ | ½ | ½ | * | 1 | ½ | ½ | 4.0 | 17.00 | 41.0 | -10.1 | 2341 |
| 6 | 🇩🇪IMBesou, Hussain | 2411 | 0 | 0 | ½ | 1 | 0 | ½ | 0 | * | 1 | 1 | 4.0 | 15.25 | 41.0 | -8.0 | 2342 |
| 9 | 🇳🇱WFMRicken, Katharina | 2180 | 0 | 1 | 0 | 0 | ½ | ½ | ½ | 0 | * | ½ | 3.0 | 13.00 | 42.0 | +20.6 | 2284 |
| 10 | 🇩🇪FMDahl, Christoph | 2394 | 0 | 0 | 0 | ½ | 1 | ½ | ½ | 0 | ½ | * | 3.0 | 11.75 | 42.0 | -15.8 | 2262 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Kairbekova, AminaWGMKAZ+30.85.5 pts · #3
- 2Ricken, KatharinaWFMNED+20.63.0 pts · #9
- 3Otsuka, ShouFMJPN+15.04.5 pts · #4
- 1Dahl, ChristophFMGER-15.83.0 pts · #10
- 2Stefansson, HannesGMISL-10.14.0 pts · #5
- 3Besou, HussainIMGER-8.04.0 pts · #6
- R6+168 Elo gap