CChessStats

Mistrzostwa Swinoujscia 2025

Open SwissStandard

14 players participated in this 9-round tournament, held from 29 Aug 2025 to 31 Aug 2025 in Swinoujscie, Poland. 1 titled players from 2 federations. Top 10 Elo average was 1769, and top seed was Andrzej Zeissel (🇵🇱 POL, 1980).

Andrzej Zeissel (🇵🇱 POL, 1980) won with 9.0/9, ahead of Jerzy Kot (6.5) and Aleksander Obrycki (6.0). Zeissel won solo starting round 3.

The biggest upset came in round 4: Maciej Ocalewski (1517) beat Ryszard Mrozewicz (1753), a +236-point gap.

Location
🇵🇱Swinoujscie, Poland
Dates
29 Aug 2025 → 31 Aug 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Top seed
🇵🇱Andrzej Zeissel1980
Avg top 10
1,769
Participants
14
Titled players · 1
FM×1
Federations · 2 represented
🇵🇱Poland×13
🇺🇦Ukraine×1
Top 3

How it unfolded

Top 6 · 9 rounds

Andrzej Zeissel led from R3; +2.5-point edge over the runner-up.

Co-leaders
7
2
1
1
1
1
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9
Zeissel9Kot6.5Obrycki6Jobell5.5Dawidow5Olszowski5
R3–R9 · LEAD HELD

Andrzej Zeissel never relinquished the lead after R3; final gap +2.5 over the runner-up.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Andrzej Zeissel beat FM Jerzy Kot (White).

R1–R9 · WIN STREAK

Andrzej Zeissel won 9 in a row (R1–R9).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Andrzej Zeissel*
1
1
1
2FMJerzy Kot
0
*
½
1
3Aleksander Obrycki
0
½
*
½
4Remigiusz Jobell
0
0
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Zeissel, Andrzej1980POL+13B+3N+2B+4N+7B+5N+11B+6N+8B9.040.042.542.502555+37.6
2Kot, JerzyFM1949POL+10N+5B−1N+6B=3N+8B+4N=9B=7N6.543.047.030.751911-2.2
3Obrycki, Aleksander1801POL+11N−1B+8N+12B=2B=4N+9B=5B=10N6.041.545.025.501819+10.8
4Jobell, Remigiusz1770POL+9N=8B+5N−1B=6N=3B−2B+12N+11B5.543.046.523.501812+14.4
5Olszowski, Andrzej1781POL+6B−2N−4B+9N=8N−1B+13B=3N+14B5.042.542.516.501784-0.4
6Dawidow, Monika0POL−5N+14B+10N−2N=4B=12B+7N−1B+13N5.040.540.515.5017790.0
7Zajaczkowski, Mikolaj1529POL−8N=9B+14N+10B−1N=11N−6B+13N=2B4.538.538.513.501807+85.2
8Zurek, Jacek1841POL+7B=4N−3B=13N=5B−2N=12B+14N−1N4.042.542.512.751748-19.8
9Rozycki, Michal0POL−4B=7N=11B−5B+14N+10B−3N=2N=12B4.038.538.513.0016660.0
10Borecki, Adam1546POL−2B+12N−6B−7N+13B−9N+14B=11N=3B4.035.535.510.751719+24.6
11Ocalewski, Maciej1517POL−3B−13N=9N+14B+12N=7B−1N=10B−4N3.539.039.09.751568+9.6
12Malomuzh, Valentyn0UKR+14N−10B+13B−3N−11B=6N=8N−4B=9N3.534.534.59.0016080.0
13Laszewski, Kazimierz1744POL−1N+11B−12N=8B−10N+14B−5N−7B−6B2.538.538.55.501608-26.4
14Mrozewicz, Ryszard1753POL−12B−6N−7B−11N−9B−13N−10N−8B−5N0.033.536.00.00864-73.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets