CChessStats

I Diament - 5R o male normy II.I,K. - do FIDE

Open SwissStandard

28 players participated in this 5-round tournament, held from 06 Sept 2025 to 07 Sept 2025 in Siemianowice Slaskie, Poland. Top 10 Elo average was 1882, and top seed was Artur Oborski (🇵🇱 POL, 2065).

Dmytro Khimichenko (🇵🇱 POL, 1991) won with 4.5/5, ahead of Artur Oborski (4.0) and Mateusz Plywacz (4.0). Khimichenko won solo starting round 4.

The biggest upset came in round 4: Wiktor Jozwiak (1512) beat Dominik Wasiluk (1745), a +233-point gap.

Location
🇵🇱Siemianowice Slaskie, Poland
Dates
06 Sept 2025 → 07 Sept 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇵🇱Artur Oborski2065
Avg top 10
1,882
Participants
28
Federations · 1 represented
🇵🇱Poland×28
Top 3

How it unfolded

Top 6 · 5 rounds

Dmytro Khimichenko led from R4; +0.5-point edge over the runner-up.

Co-leaders
12
5
2
1
1
1.52.545R1R2R3R4R5
Khimichenko4.5Plywacz4Oborski4Jany3.5Pekala3.5Wojcik3.5
R4–R5 · LEAD HELD

Dmytro Khimichenko held the sole lead from R4 through R5 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Dmytro Khimichenko drew with Mateusz Plywacz (Black).

WIN STREAKS · 2 top finishers

Dmytro Khimichenko 4 wins (R1–R4)Artur Oborski 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Dmytro Khimichenko*
½
1
—
2Mateusz Plywacz
½
*——
3Artur Oborski
0
—*—
4Piotr Jany———*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Khimichenko, Dmytro1991POL+18B+11N+4B+2B=3N4.514.016.014.002212+48.4
2Oborski, Artur2065POL+12B+20N+21B−1N+7B4.012.014.09.502080+3.6
3Plywacz, Mateusz1910POL+22B+19N=7B+10N=1B4.012.013.59.751966+19.2
4Pekala, Dawid2017POL+17N+6B−1N=5B+8N3.514.517.010.751905-18.8
5Wojcik, Wojciech1744POL+8B−21N+19B=4N+13B3.511.013.09.251837+26.0
6Jany, Piotr1807POL+26B−4N=18B+12N+10B3.510.511.57.001841+5.0
7Rojek, Wojciech1889POL+28N=13B=3N+11B−2N3.013.013.05.751804-13.6
8Jozwiak, Wiktor1512POL−5N+23B+20B+14N−4B3.011.513.06.001808+36.4
9Stepnik, Filip1661POL=15B−10N+22B+18N=14B3.09.511.06.001671+4.0
10Klementys, Jerzy1702POL=16N+9B+13N−3B−6N2.513.015.56.751668-4.2
11Siciarz, Filip1639POL+24N−1B+16N−7N=15B2.512.514.05.251602-13.6
12Gazda, Jacek1623POL−2N+27B+15N−6B=16N2.512.513.54.751637-0.6
13Mazgaj, Bartosz1516POL+14B=7N−10B+20N−5N2.511.513.56.001762+60.4
14Wasiluk, Dominik1745POL−13N+28B+17N−8B=9N2.511.011.04.001559-47.2
15Kryszak, Jakub1431POL=9N=16B−12B+27N=11N2.510.511.55.001570+35.6
16Libura, Mikolaj1463POL=10B=15N−11B+23N=12B2.510.011.55.251590+37.6
17Domoradzki, Tomasz1586POL−4B+26N−14B=19N+22B2.59.510.53.501654+6.6
18Szymczyk, Jan1583POL−1N+24B=6N−9B=19N2.013.014.54.251540-13.2
19Kucharski, Piotr1473POL+25N−3B−5N=17B=18B2.012.013.53.751627+33.6
20Wisniowski, Marcel1736POL+27N−2B−8N−13B+26N2.010.511.52.001547-50.4
21Wesolowski, Jeremi1919POL+23N+5B−2N——2.07.59.05.001909+2.0
22Blaszczyk, Igor1540POL−3N=25B−9N+24B−17N1.511.012.52.251394-25.2
23Kucharski, Wojciech1564POL−21B−8N+25N−16B=24N1.59.010.52.251453-22.4
24Mierzwinski, Wiktor0POL−11B−18N+26B−22N=23B1.57.58.51.7514190.0
25Dysko, Adam1704POL−19B=22N−23B−26N+27B1.56.07.01.751363-89.6
26Kundzierewicz, Nikodem1528POL−6N−17B−24N+25B−20B1.09.511.01.501516-3.6
27Gruszczynski, Miroslaw1480POL−20B−12N+28N−15B−25N1.08.58.50.001365-27.2
28Jurczyk, Szymon1535POL−7B−14N−27B——0.05.56.50.00902-35.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets