CChessStats

Letni Weekend Szachowy z Korona Zakrzewo OPEN FIDE

Open SwissStandard

22 players participated in this 5-round tournament, held from 02 Aug 2025 to 03 Aug 2025 in Przezmierowo, Poland. 2 titled players. Top 10 Elo average was 1839, and top seed was Bruno Stachowiak (🇵🇱 POL, 2069).

Bruno Stachowiak (🇵🇱 POL, 2069) won with 5.0/5, ahead of Lena Michalska (4.0) and Pawel Polarczyk (3.5). Stachowiak won solo starting round 3.

The biggest upset came in round 1: Marcin Krawczyk (1642) beat Malgorzata Bednarska-Bzdega (WFM, 1920), a +278-point gap.

Location
🇵🇱Przezmierowo, Poland
Dates
02 Aug 2025 → 03 Aug 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇵🇱Bruno Stachowiak2069
Avg top 10
1,839
Participants
22
Titled players · 2
WFM×1
WCM×1
Federations · 1 represented
🇵🇱Poland×22
Top 3

How it unfolded

Top 6 · 5 rounds

Bruno Stachowiak led from R3; +1.0-point edge over the runner-up.

Co-leaders
8
3
1
1
1
1.52.545R1R2R3R4R5
Stachowiak5Michalska4Polarczyk3.5Bartkowiak3Joachimiak3Zarzycki3
R3–R5 · LEAD HELD

Bruno Stachowiak never relinquished the lead after R3; final gap +1.0 over the runner-up.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Bruno Stachowiak beat WCM Lena Michalska (White).

R1–R5 · WIN STREAK

Bruno Stachowiak won 5 in a row (R1–R5).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Bruno Stachowiak*
1
—
1
2WCMLena Michalska
0
*——
3Pawel Polarczyk——*—
4Damian Bartkowiak
0
——*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Stachowiak, Bruno2069POL+6B+14N+2B+4N+9B5.013.015.015.002578+34.0
2Michalska, LenaWCM1794POL+15B+13N−1N+5B+10N4.013.015.010.002044+61.2
3Polarczyk, Pawel1791POL+8N=7B+5N−10B+13N3.512.014.09.501869+10.6
4Zarzycki, Lukasz1741POL=16N+18B+7N−1B=8N3.013.014.57.001779+4.8
5Marcinkowski, Wojciech1765POL+22B+9N−3B−2N+14B3.012.513.56.001836+20.0
6Joachimiak, Adam1655POL−1N=8B+20N+21B=7N3.012.513.55.501760+25.2
7Jablonski, Grzegorz1687POL+12B=3N−4B+14N=6B3.012.014.07.751721+3.6
8Huchwajda, Grzegorz1585POL−3B=6N+15B+12N=4B3.012.014.07.501702+12.2
9Bartkowiak, Damian1986POL+21N−5B+17N+13B−1N3.011.512.54.501824-16.2
10Bednarska-Bzdega, MalgorzataWFM1920POL−13B+22N+19B+3N−2B3.011.012.06.001732-19.8
11Simon, Marek1906POL=17N=16B−13N+18B+19N3.07.08.54.751673-24.6
12Stupak, Kacper0POL−7N+21B=18N−8B+17N2.59.010.03.2516540.0
13Krawczyk, Marcin1642POL+10N−2B+11B−9N−3B2.013.516.56.001807+18.6
14Pilny, Piotr1697POL+20N−1B+16N−7B−5N2.013.014.53.501620-11.8
15Uryga, Marcin1620POL−2N=20B−8N=17B+21N2.010.011.02.501553-19.2
16Kubacka, Patrycja1483POL=4B=11N−14B=19N=20B2.09.511.04.501579+20.0
17Owsianny, Maciej1632POL=11B=19N−9B=15N−12B1.510.512.03.251661+0.4
18Krzewinski, Piotr1718POL=19B−4N=12B−11N=22B1.510.011.02.501476-50.0
19Kasprzyk, Mateusz1477POL=18N=17B−10N=16B−11B1.59.511.02.501567+13.6
20Chmielewski, Leon1464POL−14B=15N−6B=22N=16N1.59.010.02.501451-4.4
21Borkowski, Pawel1652POL−9B−12N+22B−6N−15B1.010.511.51.001510-32.0
22Niemier, Martyna1553POL−5N−10B−21N=20B=18N1.09.010.01.501464-11.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets