CChessStats

Mistrzostwa Wielkopolski Juniorow w szachach klasycznych 2026 [GRUPA C18] chlopcy ur. 2008-2010

Open SwissStandard

26 players participated in this 9-round tournament, held from 04 Jun 2026 to 08 Jun 2026 in Sypniewo k. Jastrowia, Poland. Top 10 Elo average was 1783, and top seed was Wojciech Marcinkowski (🇵🇱 POL, 1896).

Antoni Wolnicki (🇵🇱 POL, 1746) won with 7.0/9, ahead of Tymoteusz Lachacz (7.0) and Jan Pernak (6.5). Wolnicki shared the lead from round 2, winning on tie-break.

The biggest upset came in round 3: Jan Szczepaniak (1534) beat Filip Krzeszewski (1752), a +218-point gap.

Location
🇵🇱Sypniewo k. Jastrowia, Poland
Dates
04 Jun 2026 → 08 Jun 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Top seed
🇵🇱Wojciech Marcinkowski1896
Avg top 10
1,783
Participants
26
Federations · 1 represented
🇵🇱Poland×26
Top 3

How it unfolded

Top 6 · 9 rounds

Tight race until R9; 2 players tied at 7.0/9, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
11
4
2
2
2
1
1
3
2
2.54.579R1R2R3R4R5R6R7R8R9
Lachacz7Wolnicki7Pernak6.5Kolinski6Marcinkowski6Pachura5.5
R9 · TIEBREAK CLUSTER

2 players finish on 7.0/9. Wolnicki takes the title on Buchholz Cut1 (45.5).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Tymoteusz Lachacz drew with Antoni Wolnicki (White).

WIN STREAKS · 2 top finishers

Tymoteusz Lachacz 3 wins (R1–R3)Antoni Wolnicki 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Tymoteusz Lachacz*
½
—
½
2Antoni Wolnicki
½
*
½
½
3Jan Pernak—
½
*
0
4Jakub Kolinski
½
½
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Wolnicki, Antoni1746POL+22N+17B+7N=2N=5B+6B=4N=3N+11B7.045.548.535.751961+98.8
2Lachacz, Tymoteusz1798POL+11N+6B+10N=1B=4N=17B=9N+12B+5B7.044.048.037.001938+62.8
3Pernak, Jan1839POL=21N+16B−4N+14B=6N+12B+13N=1B+9N6.541.544.530.751844+8.4
4Kolinski, Jakub1882POL+23B=9N+3B=7N=2B+11N=1B−5N+10B6.047.050.031.751851-9.2
5Marcinkowski, Wojciech1896POL=16N=18B+21N+10B=1N=13B+17N+4B−2N6.042.045.028.001824-27.2
6Pachura, Mateusz1718POL+20B−2N+8B+9N=3B−1N−7B+14N+17B5.545.049.026.251758+22.8
7Zadon, Jakub1803POL+15B+12N−1B=4B−17N=10B+6N=8N+21B5.542.045.025.751741-24.4
8Lewandowski, Mikolaj1522POL−13N+26B−6N+21B+24N−9N+15B=7B+19N5.534.034.516.751625+28.4
9Wisniarek, Jakub1712POL+14N=4B+18N−6B=12N+8B=2B=11N−3B5.044.548.525.251721+4.4
10Matuszewski, Jakub1636POL+24N+13B−2B−5N=15B=7N+16N+17B−4N5.042.044.020.001742+43.2
11Szczepaniak, Jan1534POL−2B+25N+13N=17B+18N−4B+14N=9B−1N5.042.043.018.501726+86.4
12Korzeniewski, Jan1660POL+26N−7B=14N+16B=9B−3N+22B−2N=18B4.540.040.514.751631-14.4
13Krzeszewski, Filip1752POL+8B−10N−11B+22N+23B=5N−3B=18N=15B4.539.542.518.751635-53.6
14Mioduszewski, Szymon1495POL−9B+15N=12B−3N+20B+23N−11B−6B+24N4.538.040.015.751593+36.0
15Lewek, Franciszek1547POL−7N−14B+26N+19B=10N=21B−8N+24B=13N4.534.034.512.751435-35.6
16Mazurek, Oskar1575POL=5B−3N+20B−12N−22B+24N−10B+25N+26B4.532.032.510.501537-20.0
17Korzystka, Maksymilian1682POL+25B−1N+22B=11N+7B=2N−5B−10N−6N4.044.045.015.501631-22.4
18Pawlak, Igor1657POL+19B=5N−9B=23N−11B−22N+25N=13B=12N4.035.036.014.001546-50.4
19Nowakowski, Michal0POL−18N−22B+25B−15N−21N+26B+23B+20N−8B4.028.028.58.5014510.0
20Cholewa, Stanislaw1505POL−6N=24B−16N+26B−14N+25B=21N−19B+23B4.027.528.07.001501-3.2
21Cichuta, Alan1560POL=3B=23N−5B−8N+19B=15N=20BF−7N3.039.042.013.001511-24.4
22Wos, Jakub1513POL−1B+19N−17N−13B+16N+18B−12NFF3.035.535.512.501554+11.6
23Nowak, Jedrzej1573POL−4N=21B+24N=18B−13N−14B−19N+26B−20N3.032.032.56.001369-60.4
24Pisznot, Wiktor0POL−10B=20N−23B+25N−8B−16B=26N−15N−14B2.032.032.53.2512840.0
25Grychta, Leon1426POL−17N−11B−19N−24B+26N−20N−18B−16BF1.028.028.00.50791-57.6
26Kucal, Wojciech0POL−12B−8N−15B−20N−25B−19N=24B−23N−16N0.532.033.01.007440.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets