CChessStats

Szachowe Termopile - turniej A

Open SwissStandard

18 players participated in this 9-round tournament, held from 30 Jan 2026 to 01 Feb 2026 in Wegrow, Poland. 2 titled players. Top 10 Elo average was 1852, and top seed was Dawid Dobosiewicz (🇵🇱 POL, FM, 2391).

Marek Kosiorek (🇵🇱 POL, FM, 2221) won with 8.5/9, ahead of Dawid Dobosiewicz (8.5) and Tadeusz Strus (6.0). Kosiorek shared the lead from round 1, winning on tie-break.

The biggest upset came in round 7: Konrad Gutkowski (1699) beat Wladyslaw Zelak (1898), a +199-point gap.

Location
🇵🇱Wegrow, Poland
Dates
30 Jan 2026 → 01 Feb 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Top seed
🇵🇱FMDawid Dobosiewicz2391
Avg top 10
1,852
Participants
18
Titled players · 2
FM×2
Federations · 1 represented
🇵🇱Poland×18
Top 3

How it unfolded

Top 6 · 9 rounds

Tight race until R9; 2 players tied at 8.5/9, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 2 at the finish.

Co-leaders
9
4
2
3
2
2
2
2
2
2.54.579R1R2R3R4R5R6R7R8R9
Dobosiewicz8.5Kosiorek8.5Strus6Strus5Gutkowski5Kraus4.5
R9 · TIEBREAK CLUSTER

2 players finish on 8.5/9. Kosiorek takes the title on Buchholz Cut1 (41.5).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

FM Dawid Dobosiewicz drew with FM Marek Kosiorek (Black).

WIN STREAKS · 2 top finishers

FM Dawid Dobosiewicz 3+5 wins (R1–R3, R5–R9)FM Marek Kosiorek 3+5 wins (R1–R3, R5–R9)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1FMDawid Dobosiewicz*
½
1
1
2FMMarek Kosiorek
½
*
1
—
3Tadeusz Strus
0
0
*
½
4Mateusz Strus
0
—
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Kosiorek, MarekFM2221POL+11N+6B+12N=2B+7N+8N+3B+4N+9B8.541.545.040.752346+16.6
2Dobosiewicz, DawidFM2391POL+16B+4N+8B=1N+3B+5N+7B+12N+6N8.541.543.539.252463+6.8
3Strus, Tadeusz1814POL+9N=7B+6N+12B−2N+14B−1N=5B+8N6.043.546.024.251908+28.8
4Gutkowski, Konrad1699POL+17N−2B−7N=6B+11N+10B+8N−1B=14N5.041.542.517.501806+15.4
5Strus, Mateusz1686POL−12N+9B+18N+10B=14N−2B=6B=3N=11B5.038.039.018.501793+32.4
6Chacinski Osorio, Fabian1805POL+13B−1N−3B=4N+15B=7B=5N+10N−2B4.545.047.517.251765-24.8
7Morawski, Jakub1672POL+14B=3N+4B=8N−1B=6N−2N−9B+13N4.544.547.018.001754+12.2
8Zelak, Wladyslaw1898POL+18B+10N−2N=7B+12N−1B−4B+16N−3B4.542.543.513.251742-31.4
9Kraus, Kajetan1524POL−3B−5N=13B=16N+17B+15N=12B+7N−1N4.535.036.012.251670+56.8
10Bartnicki, Piotr0POL+15N−8B=11N−5N+13B−4N+14B−6B+12N4.532.034.513.5015980.0
11Zebrowski, Adam1627POL−1B=14N=10B−13N−4B=16N+17N+15B=5N4.033.034.010.501618-4.2
12Czarkowski, Dawid0POL+5B+16N−1B−3N−8B+13N=9N−2B−10B3.544.546.512.2517890.0
13Gromek, Cezary1505POL−6N=15B=9N+11B−10N−12B−16B+14N−7B3.030.532.510.001534+10.4
14Fedorczyk, Filip0POL−7N=11B+15NF=5B−3N−10N−13B=4B2.534.535.59.5015680.0
15Nisztuk, Michal1695POL−10B=13N−14B+17B−6N−9BF−11N+16B2.526.026.04.501530-27.0
16Kraus, Mikolaj1634POL−2N−12B−17N=9BF=11B+13N−8B−15N2.031.531.57.251515-51.6
17Giers, Rafal1436POL−4B−18N+16B−15N−9NF−11B——1.019.019.02.001352-11.8
18Skolimowski, Michal1568POL−8N+17B−5BF—————1.012.013.01.001548-5.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets