CChessStats

III Turniej o I i K w Twierdzy Mokotow

Open SwissStandard

17 players participated in this 5-round tournament, held from 28 Feb 2026 to 01 Mar 2026 in Warszawa, Poland. 2 federations represented. Top 10 Elo average was 1791, and top seed was Antoni Rosa (🇵🇱 POL, 2081).

Antoni Rosa (🇵🇱 POL, 2081) won with 5.0/5, ahead of Szymon Zajac (4.0) and Dominik Seredyn (3.5). Rosa won solo starting round 4.

The biggest upset came in round 1: Kamil Stupak (1487) beat Jeremiasz Piwowarczuk (1814), a +327-point gap.

Location
🇵🇱Warszawa, Poland
Dates
28 Feb 2026 → 01 Mar 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇵🇱Antoni Rosa2081
Avg top 10
1,791
Participants
17
Federations · 2 represented
🇵🇱Poland×16
🇺🇦Ukraine×1
Top 3

How it unfolded

Top 6 · 5 rounds

Antoni Rosa led from R4; +1.0-point edge over the runner-up.

Co-leaders
8
4
2
1
1
1.52.545R1R2R3R4R5
Rosa5Zajac4Seredyn3.5Bartnicki3.5Dorowski3Olszewski2.5
R4–R5 · LEAD HELD

Antoni Rosa never relinquished the lead after R4; final gap +1.0 over the runner-up.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Antoni Rosa beat Szymon Zajac (White).

WIN STREAKS · 2 top finishers

Antoni Rosa 5 wins (R1–R5)Szymon Zajac 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Antoni Rosa*
1
——
2Szymon Zajac
0
*——
3Dominik Seredyn——*
½
4Piotr Bartnicki——
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Rosa, Antoni2081POL+16N+13B+5N+2B+6N5.010.510.510.502589+28.8
2Zajac, Szymon2016POL+8B+7N+11B−1N+5B4.013.015.010.002005+2.2
3Seredyn, Dominik1810POL−6N+15B+9B=4N+7B3.511.011.06.752496+21.4
4Bartnicki, Piotr0POL−5N+17B+14N=3B+13B3.58.58.53.751855+39.2
5Dorowski, Nataniel1779POL+4B+10N−1B+11N−2N3.015.017.08.001736-8.0
6Sieradzka, Marzena0POL+3B=9N−7B+8N−1B2.513.516.07.2518100.0
7Orzechowski, Nikodem1731POL+12N−2B+6N=10B−3N2.512.514.05.251114-11.0
8Siciarz, Filip1615POL−2N=12B+15N−6B+11B2.510.010.02.751808+26.0
9Dajek, Weronika1814POL+15N=6B−3N+12B−10N2.510.010.02.751679-12.8
10Olszewski, Antoni0POLF−5B+13N=7N+9B2.59.09.04.7517600.0
11Stupak, Kamil1487POL+17N+16B−2N−5B−8N2.09.59.50.001672+19.8
12Czarkowski, Dawid0POL−7B=8NF−9N+14B1.58.58.52.251446-43.6
13Muza, Yevhen1637UKR+14B−1N−10BF−4N1.012.012.01.001237-3.2
14Gozdera, Piotr0POL−13NF−4B+15B−12N1.06.06.00.0015920.0
15Trzcinski, Brajan1547POL−9B−3N−8B−14N—0.08.59.50.00946-30.4
16Wydornik, Robert1617POL−1B−11N———0.05.07.00.00955-15.2
17Piwowarczuk, Jeremiasz1814POL−11B−4N———0.03.55.50.00687-34.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets