MARIENBAD OPEN 2026 - B1
10 players participated in this 9-round tournament, held from 17 Jan 2026 to 24 Jan 2026 in Marianske Lazne, Czech Republic. 9 titled players from 7 federations. Top 10 Elo average was 2245, and top seed was Neelash Saha (🇮🇳 IND, IM, 2474).
Neelash Saha (🇮🇳 IND, IM, 2474) won with 8.0/9, ahead of Florian Mostbauer (6.0) and Roberto Alejandro Avila Bautista (4.5). Saha won solo starting round 4.
The biggest upset came in round 1: Andrzej Krzywda (CM, 2140) beat Roberto Alejandro Avila Bautista (FM, 2315), a +175-point gap.
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How it unfolded
Top 10 · 9 roundsIM Neelash Saha led from R4 onwards, the title was decided early.
IM Neelash Saha takes the sole lead (3.5/4).
IM Neelash Saha opens a +1.5-point gap over the chasing pack (closest: FM Florian Mostbauer); the title is out of reach before R9.
IM Neelash Saha drew with FM Florian Mostbauer (White).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇮🇳IMNeelash Saha | 2474 | * | ½ | 1 | 1 | ½ | 1 | 1 | 1 | 1 | 1 | 8.0 | 32.00 | 37.0 | +7.6 | 2571 |
| 2 | 🇦🇹FMMostbauer, Florian | 2343 | ½ | * | ½ | 1 | ½ | ½ | 1 | ½ | ½ | 1 | 6.0 | 25.25 | 39.0 | +4.6 | 2359 |
| 3 | 🇲🇽FMAvila Bautista, Roberto Alejandro | 2315 | 0 | ½ | * | 1 | 1 | 0 | 1 | ½ | ½ | 0 | 4.5 | 19.00 | 40.5 | -18.4 | 2237 |
| 4 | 🇪🇸IMDel Rey, Diego | 2282 | 0 | 0 | 0 | * | ½ | 1 | ½ | 1 | 1 | ½ | 4.5 | 16.50 | 40.5 | -5.1 | 2240 |
| 6 | 🇵🇱CMKorszanski, Stanislaw | 2227 | ½ | ½ | 0 | ½ | * | 1 | 0 | 0 | 1 | ½ | 4.0 | 18.25 | 41.0 | -10.8 | 2203 |
| 5 | 🇵🇱CMKrzywda, Andrzej | 2140 | 0 | ½ | 1 | 0 | 0 | * | ½ | ½ | 1 | ½ | 4.0 | 16.25 | 41.0 | +16.6 | 2213 |
| 7 | 🇨🇿FMMatras, Ondrej | 2174 | 0 | 0 | 0 | ½ | 1 | ½ | * | 1 | 0 | 1 | 4.0 | 14.75 | 41.0 | +7.8 | 2209 |
| 8 | 🇵🇱Sliwerski, Radoslaw | 2061 | 0 | ½ | ½ | 0 | 1 | ½ | 0 | * | ½ | ½ | 3.5 | 14.50 | 41.5 | +24.8 | 2183 |
| 9 | 🇵🇱CMSmietanska, Wiktoria | 2226 | 0 | ½ | ½ | 0 | 0 | 0 | 1 | ½ | * | 1 | 3.5 | 14.00 | 41.5 | -29.3 | 2167 |
| 10 | 🇬🇧IMDunnington, Angus J | 2203 | 0 | 0 | 1 | ½ | ½ | ½ | 0 | ½ | 0 | * | 3.0 | 12.50 | 42.0 | -9.8 | 2124 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Sliwerski, RadoslawPOL+24.83.5 pts · #8
- 2Krzywda, AndrzejCMPOL+16.64.0 pts · #5
- 3Matras, OndrejFMCZE+7.84.0 pts · #7
- 1Smietanska, WiktoriaCMPOL-29.33.5 pts · #9
- 2Avila Bautista, Roberto AlejandroFMMEX-18.44.5 pts · #3
- 3Korszanski, StanislawCMPOL-10.84.0 pts · #6
- R1+175 Elo gap
- R1+166 Elo gap
- R3+112 Elo gap