CChessStats

Leszczynski Festiwal Szachowy - Open 2026

Open SwissStandard

21 players participated in this 7-round tournament, held from 01 May 2026 to 03 May 2026 in Leszno, Poland. Top 10 Elo average was 1744, and top seed was Jakub Zadon (🇵🇱 POL, 1819).

Wojciech Marcinkowski (🇵🇱 POL, 1751) won with 6.5/7, ahead of Witold Raburski (5.0) and Krzysztof Rozumek (4.5). Marcinkowski won solo starting round 3.

The biggest upset came in round 1: Teodor Dixon (1431) beat Stanislaw Kosinski (1670), a +239-point gap.

Location
🇵🇱Leszno, Poland
Dates
01 May 2026 → 03 May 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇵🇱Jakub Zadon1819
Avg top 10
1,744
Participants
21
Federations · 1 represented
🇵🇱Poland×21
Top 3

How it unfolded

Top 6 · 7 rounds

Wojciech Marcinkowski led from R3; +1.5-point edge over the runner-up.

Co-leaders
9
3
1
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Marcinkowski6.5Raburski5Rozumek4.5Sura4.5Lesien4.5Zadon4
R3–R7 · LEAD HELD

Wojciech Marcinkowski never relinquished the lead after R3; final gap +1.5 over the runner-up.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Wojciech Marcinkowski beat Witold Raburski (White).

WIN STREAKS · 2 top finishers

Wojciech Marcinkowski 3+3 wins (R1–R3, R5–R7)Krzysztof Rozumek 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Wojciech Marcinkowski*
1
1
—
2Witold Raburski
0
*—
½
3Krzysztof Rozumek
0
—*—
4Wiktor Sura—
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Marcinkowski, Wojciech1751POL+20N+9B+4N=6B+3N+2B+8N6.525.526.524.502135+106.0
2Raburski, Witold1724POL+21B+18N=6B=5N+7B−1N+13B5.024.024.013.251813+36.0
3Rozumek, Krzysztof1795POL−11N+14B+9N+10B−1B=7N+12B4.524.527.015.001749-6.4
4Lesien, Przemyslaw1801POL+13B=7N−1B=16N+12B+15N=5B4.524.026.014.251716-12.2
5Sura, Wiktor1722POL+16N=15B+8N=2B=6N=10B=4N4.523.025.015.501853+37.1
6Zadon, Jakub1819POL+17N+11B=2N=1N=5B−8B=7N4.027.529.015.001738-28.4
7Jachnik, Stanislaw1633POL+10N=4B+15N=11B−2N=3B=6B4.025.027.013.751759+39.6
8Chwastyniak, Jakub1708POL−9B+13N−5B+18N+16B+6N−1B4.024.025.511.001683-6.4
9Witczak, Mikolaj1534POL+8N−1N−3B+14B−10N+17B=11N3.524.526.09.751691+28.2
10Rothe, Oskar1776POL−7B+12N+20B−3N+9B=5N−15B3.522.023.010.251719-8.0
11Gorzny, Tobiasz1637POL+3B−6N+18B=7N=15B−12N=9B3.521.523.010.751648+3.6
12Korzystka, Maksymilian1675POL=14N−10B+19N+17B−4N+11B−3N3.520.021.07.251692+6.8
13Janaszak, Amelia1638POL−4N−8B=14N+19B+17N+16B−2N3.519.520.55.751658+6.3
14Szlendak, Wojciech1524POL=12B−3N=13B−9N=18B−19N+17N2.518.019.05.751525-2.8
15Becela, Wojciech0POLF=5N−7BF=11N−4B+10N2.021.021.07.5016420.0
16Lewek, Franciszek1537POL−5BF=17N=4B−8N−13N+19B2.019.019.04.001572+10.0
17Biala, Julia1643POL−6B+21N=16B−12N−13B−9N−14B1.519.019.01.001387-90.4
18Dixon, Teodor1431POL+19N−2B−11N−8B=14NF—1.516.016.02.251504+14.8
19Kosinski, Stanislaw1670POL−18B−20N−12B−13NF+14B−16N1.014.014.02.501296-55.8
20Jarnuczak, Damian1610POL−1B+19B−10NF———1.012.013.01.001607-0.2
21Samol, Zofia1592POL−2N−17B—————0.05.06.50.00884-30.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets