II Arche Chess Open A

Open SwissStandard

31 players participated in this 9-round tournament, held from 21 Feb 2026 to 28 Feb 2026 in Lublin, Poland. 7 titled players from 4 federations. Top 10 Elo average was 2128, and top seed was Dawid Czerw (🇵🇱 POL, IM, 2362).

Dawid Czerw (🇵🇱 POL, IM, 2362) won with 7.5/9, ahead of Ilmars Starostits (7.0) and Mikulas Manik (6.5). Czerw won solo starting round 7.

The biggest upset came in round 8: Mateusz Gorniak (1743) beat Dawid Futyma (2097), a +354-point gap.

Location

🇵🇱Lublin, Poland

Dates

21 Feb 2026 → 28 Feb 2026

Time control

Standard: 90 minutes for game with 30 seconds delay from move 1

System

Swiss · 9 rounds

Top seed

🇵🇱IMDawid Czerw2362

Avg top 10

2,128

Participants

Titled players · 7

GM×2

IM×1

CM×1

WFM×1

WCM×2

Federations · 4 represented

🇵🇱Poland×28

🇱🇻Latvia×1

🇸🇰Slovakia×1

🇺🇦Ukraine×1

Top 3

🥇
IMDawid Czerw
🇵🇱POL·2362
7.5pts·2358perf+1.9
🥈
GMIlmars Starostits
🇱🇻LAT·2342
7.0pts·2292perf-2.2
🥉
GMMikulas Manik
🇸🇰SVK·2261
6.5pts·2247perf+1.1

How it unfolded

Top 6 · 9 rounds

IM Dawid Czerw led from R5; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R5.

Co-leaders

Czerw7.5Starostits7Manik6.5Oborski6.5Bogdanov6Kawka5.5

R5–R9 · LEAD HELD

IM Dawid Czerw held the sole lead from R5 through R9 without losing it.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

IM Dawid Czerw drew with GM Ilmars Starostits (White).

WIN STREAKS · 2 top finishers

IM Dawid Czerw 3 wins (R1–R3)GM Ilmars Starostits 3+3 wins (R1–R3, R7–R9)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1IMDawid Czerw	*	½	½	1
2GMIlmars Starostits	½	*	½	—
3GMMikulas Manik	½	½	*	1
4Artur Oborski	0	—	0	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Czerw, DawidIM	2362	POL	+6N	+10B	+5N	=2B	+4N	=3B	+9N	+14B	=7N	7.5	47.0	51.5	42.00	2358	+1.9
2	Starostits, IlmarsGM	2342	LAT	+12B	+14N	+17B	=1N	=3B	−5N	+18B	+13B	+6N	7.0	43.5	47.5	34.50	2292	-2.2
3	Manik, MikulasGM	2261	SVK	+28N	=9B	+10N	+4B	=2N	=1N	=14B	=6B	+5B	6.5	47.0	49.5	34.75	2247	+1.1
4	Oborski, Artur	2135	POL	+27B	+13N	+11B	−3N	−1B	+7N	+16B	=5N	+9B	6.5	44.5	47.0	30.00	2185	+14.4
5	Bogdanov, Ignat	2070	UKR	+26B	+22N	−1B	+20N	+17B	+2B	=6N	=4B	−3N	6.0	44.5	47.5	27.50	2188	+29.2
6	Serewa, Antoni	1908	POL	−1B	+24N	+22B	=13N	+12B	+17N	=5B	=3N	−2B	5.5	44.0	47.0	24.00	2122	+46.0
7	Kawka, MilenaWCM	1933	POL	=24B	−11N	=29B	+22N	+30N	−4B	+23N	+10B	=1B	5.5	36.5	38.5	20.50	1996	+26.6
8	Rabiej, Mateusz	1944	POL	+25B	−17N	=21B	−19N	−15B	+24B	+27N	+16N	+13B	5.5	31.0	33.5	19.25	1937	-0.4
9	Dziubinski, Pawel	1971	POL	+30B	=3N	=20B	=12N	+21B	=14N	−1B	+18N	−4N	5.0	41.5	43.5	19.50	2045	+14.6
10	Sprzeczka, EmiliaWFM	2011	POL	+21B	−1N	−3B	+24N	+19B	−18N	+11B	−7N	+25N	5.0	39.0	42.0	18.50	1991	-11.0
11	Grochowski, Kosma	1945	POL	+16N	+7B	−4N	−17N	+23B	=13B	−10N	=19B	+18B	5.0	38.0	41.5	21.75	1987	+9.4
12	Galazka, Aleksander	1903	POL	−2N	+31B	+25N	=9B	−6N	−15N	=22B	+21B	+19N	5.0	36.0	36.0	14.75	1924	+5.2
13	Praszak, Michal	1981	POL	+18N	−4B	+16N	=6B	=14B	=11N	+15B	−2N	−8N	4.5	43.0	47.0	20.50	1959	-6.4
14	Makhynia, Kostiantyn	2051	POL	+31N	−2B	+23N	+18B	=13N	=9B	=3N	−1N	F	4.5	42.5	42.5	15.50	2088	+7.6
15	Gorniak, Mateusz	1743	POL	=20B	=19N	=24B	−21N	+8N	+12B	−13N	+17B	F	4.5	35.0	38.0	20.00	1959	+44.6
16	Polak, Sylwia	1774	POL	−11B	+26N	−13B	=28N	+25N	+21B	−4N	−8B	+24N	4.5	34.0	36.5	13.75	1890	+26.2
17	Futyma, Dawid	2097	POL	+23N	+8B	−2N	+11B	−5N	−6B	=19N	−15N	=20B	4.0	41.5	45.0	18.00	1920	-61.2
18	Kaluszynski, Andrzej	1791	POL	−13B	+27N	+19B	−14N	+20B	+10B	−2N	−9B	−11N	4.0	39.0	41.5	15.50	1945	+34.4
19	Kilarski, Kacper	1923	POL	=29N	=15B	−18N	+8B	−10N	+25B	=17B	=11N	−12B	4.0	36.0	38.5	16.50	1839	-40.4
20	Fraczek, DariuszCM	1936	POL	=15N	+29B	=9N	−5B	−18N	=27B	=21N	=22B	=17N	4.0	33.0	35.5	14.00	1822	-26.6
21	Wolcyrz, Jakub	1797	POL	−10N	+28B	=8N	+15B	−9N	−16N	=20B	−12N	=26B	3.5	36.5	39.0	13.25	1807	+1.2
22	Stepnik, Filip	1703	POL	F	−5B	−6N	−7B	=26N	+30B	=12N	=20N	+27B	3.5	33.5	33.5	10.50	1861	+58.4
23	Trela, Konrad	1850	POL	−17B	+30N	−14B	+26N	−11N	+28B	−7B	−25N	=29N	3.5	30.0	32.0	8.75	1811	-10.8
24	Topolan, Tomasz	1743	POL	=7N	−6B	=15N	−10B	−28B	−8N	+26N	+29B	−16B	3.0	36.0	38.5	10.50	1735	-3.0
25	Rowinski, Marek	1769	POL	−8N	F	−12B	+27N	−16B	−19N	+30N	+23B	−10B	3.0	32.0	32.0	8.00	1797	+4.2
26	Panasiuk, Stanislaw	1817	POL	−5N	−16B	=28N	−23B	=22B	=29N	−24B	+30N	=21N	3.0	29.0	31.0	8.00	1691	-56.2
27	Debowska, OlgaWCM	1876	POL	−4N	−18B	+31N	−25B	F	=20N	−8B	+28B	−22N	2.5	31.5	31.5	4.50	1729	-64.0
28	Kozmala, Michal	1881	POL	−3B	−21N	=26B	=16B	+24N	−23N	=29B	−27N	−30B	2.5	29.0	31.0	8.00	1683	-100.4
29	Prucnal, Dominik	1733	POL	=19B	−20N	=7N	−30B	F	=26B	=28N	−24N	=23B	2.5	28.0	30.0	9.25	1719	-6.4
30	Chwalewski, Marek	1786	POL	−9N	−23B	F	+29N	−7B	−22N	−25B	−26B	+28N	2.0	28.5	28.5	5.00	1640	-30.0
31	Starega, Piotr	1798	POL	−14B	−12N	−27B	—	—	—	—	—	—	0.0	9.5	12.0	0.00	1144	-18.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Stepnik, FilipPOL
+58.4
3.5 pts · #21
2Serewa, AntoniPOL
+46.0
5.5 pts · #7
3Gorniak, MateuszPOL
+44.6
4.5 pts · #13

Top rating losers

1Kozmala, MichalPOL
-100.4
2.5 pts · #29
2Debowska, OlgaWCMPOL
-64.0
2.5 pts · #28
3Futyma, DawidPOL
-61.2
4.0 pts · #19

Biggest upsets

R8+354 Elo gap
Gorniak, Mateusz1743 beat Futyma, Dawid2097
R6+272 Elo gap
Bogdanov, Ignat2070 beat GMStarostits, Ilmars2342
R6+220 Elo gap
Kaluszynski, Andrzej1791 beat WFMSprzeczka, Emilia2011