CChessStats

OTWARTE MISTRZOSTWA POMORZA ZACHODNIEGO JUNIOROW W SZACHACH STANDARDOWYCH DO LAT 18

Open SwissStandard

24 players participated in this 7-round tournament, held from 10 Oct 2025 to 12 Oct 2025 in Choszczno, Poland. 1 titled players. Top 10 Elo average was 1405, and top seed was Piotr Zareba (🇵🇱 POL, CM, 2221).

Piotr Zareba (🇵🇱 POL, CM, 2221) won with 7.0/7, ahead of Zofia Holubowska (5.5) and Szymon Chojna (5.0). Zareba won solo starting round 4.

The biggest upset came in round 4: Amelia Kalita (1402) beat Maurycy Gniadek (1593), a +191-point gap.

Location
🇵🇱Choszczno, Poland
Dates
10 Oct 2025 → 12 Oct 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇵🇱CMPiotr Zareba2221
Avg top 10
1,405
Participants
24
Titled players · 1
CM×1
Federations · 1 represented
🇵🇱Poland×19
Top 3

How it unfolded

Top 6 · 7 rounds

CM Piotr Zareba led from R4; +1.5-point edge over the runner-up.

Co-leaders
11
6
3
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Zareba7Holubowska5.5Kowalczyk5Chojna5Cieslukowski4.5Bartosik4
R4–R7 · LEAD HELD

CM Piotr Zareba never relinquished the lead after R4; final gap +1.5 over the runner-up.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

CM Piotr Zareba beat Zofia Holubowska (White).

WIN STREAKS · 3 top finishers

CM Piotr Zareba 7 wins (R1–R7)Zofia Holubowska 3 wins (R1–R3)Julia Kowalczyk 3 wins (R5–R7)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1CMPiotr Zareba*
1
1
1
2Zofia Holubowska
0
*—
½
3Julia Kowalczyk
0
—*—
4Szymon Chojna
0
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Zareba, PiotrCM2221POL+16N+3B+4N+2B+5N+6B+10N7.028.031.031.002621+9.6
2Holubowska, Zofia1642POL+19B+6N+9B−1N+8B+7N=3B5.528.030.020.501759+16.0
3Chojna, Szymon1407POL+20B−1N+17B+18N=7B+5B=2N5.027.029.017.2517530.0
4Kowalczyk, Julia1467POL+17B+18N−1B−8N+14N+12B+9B5.025.528.517.501683+30.0
5Cieslukowski, Olgierd1411POL=15N+?B+13N+7B−1B−3N+14N4.527.027.013.2518330.0
6Kalita, Amelia1402POL+23N−2B+15N+11N=9B−1N=7B4.028.029.012.501537+10.4
7Bartosik, Krzysztof0POL+?N+13B+11B−5N=3N−2B=6N4.027.027.012.5015530.0
8Staszko, Hubert0POL−13N+16B+12N+4B−2N−10B+17N4.025.528.515.0013910.0
9Cieslukowski, Zbigniew1459POL+10N+22B−2N=14B=6N+16B−4N4.025.026.011.751248-22.4
10Marosz, Piotr0POL−9B+21N−19B+24N+18B+8N−1B4.021.021.08.0015510.0
11Gniadek, Maurycy1593POL+14N+12B−7N−6B−16N+22B+20N4.020.521.510.50659-27.2
12Panicz, Jan0POL+21B−11N−8B+19N+20B−4N+16B4.020.021.08.007300.0
13Partyka, Maciej1444POL+8B−7N−5B−20N+24B+19N+18B4.019.519.59.002201+17.6
14Furs, Tymon0POL−11B+20N+24B=9N−4B+15N−5B3.523.023.07.5012150.0
15FIDE 5450144180—=5B=19N−6B=17N+?B−14B+21N3.518.018.05.756590.0
16Brozek, Mateusz0POL−1B−8N+21B+23N+11B−9N−12N3.024.025.06.0016150.0
17FIDE 5450249870—−4N+23B−3N=15B=19B+24N−8B3.020.520.53.756670.0
18Khomyn, Weronika0POL+24N−4B+22N−3B−10N+21B−13N3.020.020.02.00656-34.0
19Chomiczewski, Filip0POL−2N=15B+10N−12B=17N−13BF2.024.024.07.257410.0
20Zmijewski, Wiktor0POL−3N−14B+?N+13B−12NF−11B2.020.520.54.0015180.0
21FIDE 5450144000—−12N−10B−16N+22BF−18N−15B1.018.518.51.006010.0
22Kwasniewski, Jan0POLF−9N−18B−21N+23B−11N−?B1.013.013.01.006660.0
23FIDE 5450350160—−6B−17NF−16B−22N−?N+24B1.011.011.00.006590.0
24FIDE 5450434500—−18BF−14N−10B−13N−17B−23N0.018.518.50.006230.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets