II Miedzynarodowe Otwarte Mistrzostwa Euroregionu Slask Cieszynski - OPEN A

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61 players participated in this 9-round tournament, held from 21 Feb 2026 to 28 Feb 2026 in Ustron, Poland. 1 titled players from 3 federations. Top 10 Elo average was 1911, and top seed was Janusz Raszka (🇵🇱 POL, FM, 2033).

Janusz Raszka (🇵🇱 POL, FM, 2033) won with 7.5/9, ahead of Michal Niesyt (7.0) and Krzysztof Becker (7.0). Raszka shared the lead from round 8 and broke clear in the final round.

The biggest upset came in round 1: Miroslaw Gruszczynski (1527) beat Jakub Wieczorek (1946), a +419-point gap.

Location

🇵🇱Ustron, Poland

Dates

21 Feb 2026 → 28 Feb 2026

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇵🇱FMJanusz Raszka2033

Avg top 10

1,911

Participants

Titled players · 1

FM×1

Federations · 3 represented

🇵🇱Poland×49

🇨🇿Czech Republic×5

FIDE (no federation)×1

Top 3

🥇
FMJanusz Raszka
🇵🇱POL·2033
7.5pts·2093perf+15.2
🥈
Michal Niesyt
🇵🇱POL·1918
7.0pts·1988perf+36.0
🥉
Krzysztof Becker
🇵🇱POL·1780
7.0pts·1939perf+73.2

How it unfolded

Top 6 · 9 rounds

FM Janusz Raszka led from R4; +0.5-point edge over the runner-up.

Co-leaders

Raszka7.5Becker7Niesyt7Pietras6.5Marszalek6.5Zielinski6

R4–R9 · LEAD HELD

FM Janusz Raszka held the sole lead from R4 through R9 without losing it.

WIN STREAKS · 2 top finishers

FM Janusz Raszka 4 wins (R1–R4)Krzysztof Becker 3 wins (R7–R9)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1FMJanusz Raszka	*	—	0	½
2Krzysztof Becker	—	*	0	1
3Michal Niesyt	1	1	*	½
4Maksymilian Pietras	½	0	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Raszka, JanuszFM	2033	POL	+27N	+19B	+30N	+8B	=4N	+10B	−2B	+6N	+7B	7.5	47.5	52.0	41.75	2093	+15.2
2	Niesyt, Michal	1918	POL	+53B	=20N	+22B	+5B	=7N	+3B	+1N	=4B	=6N	7.0	49.5	52.5	40.75	1988	+36.0
3	Becker, Krzysztof	1780	POL	+34N	+31B	=9N	+28B	=6B	−2N	+21B	+5N	+4N	7.0	46.0	50.5	37.50	1939	+73.2
4	Pietras, Maksymilian	1819	POL	+40B	=22N	+37B	+20N	=1B	+8B	+7N	=2N	−3B	6.5	47.5	51.5	34.75	1922	+26.4
5	Marszalek, Jakub	1793	POL	+26B	+21N	+14B	−2N	+36B	=6N	+9B	−3B	+15N	6.5	47.0	51.0	34.00	1891	+24.2
6	Marekwica, Dawid	1979	POL	+25N	=7B	+36N	+9B	=3N	=5B	+8N	−1B	=2B	6.0	51.0	55.0	34.25	1909	-20.8
7	Biela, Jan	1670	POL	+42B	=6N	+17B	+11N	=2B	+16N	−4B	+10B	−1N	6.0	50.0	54.0	33.50	2012	+135.6
8	Wiecek, Pawel	1982	POL	+23B	+12N	+15B	−1N	+14B	−4N	−6B	+36N	+21B	6.0	47.0	51.0	31.00	1874	-17.6
9	Lisek, Adam	1711	POL	+45B	+60N	=3B	−6N	+23B	+17N	−5N	+16B	=12B	6.0	45.0	46.0	27.00	1861	+60.8
10	Macura, Mateusz	1956	POL	+18B	−14N	+53B	+24N	+31B	−1N	+22B	−7N	+25B	6.0	44.0	47.0	28.00	1779	-59.6
11	Szydlowski, Kazimierz	1812	POL	=28N	+29B	+33N	−7B	+20N	=12B	=14N	=19B	+24N	6.0	41.5	46.0	29.50	1758	-11.2
12	Zaglowek, Blazej	1706	POL	+39N	−8B	+40N	=29B	+28N	=11N	=15B	+30B	=9N	6.0	41.0	45.0	28.00	1788	+42.0
13	Zielinski, Andrzej	1776	POL	+49B	=37N	−20B	=21N	=18B	+29N	=25B	+31N	+19B	6.0	38.5	42.0	27.25	1718	-12.0
14	Vydra, David	1690	CZE	+52N	+10B	−5N	+46B	−8N	+24B	=11B	−15N	+31B	5.5	43.0	46.0	25.00	1798	+47.9
15	Kidon, Maria	1731	POL	+46N	+24B	−8N	−36B	+26N	+37B	=12N	+14B	−5B	5.5	42.0	45.5	26.00	1745	+7.6
16	Wieczorek, Jakub	1946	POL	−29N	+32B	=38N	+34B	+19N	−7B	+20N	−9N	+33B	5.5	40.0	44.0	25.50	1707	-45.0
17	Kozusnikova, Daniela	1873	CZE	+38N	=33B	−7N	+32B	+29N	−9B	−19N	+46B	+23N	5.5	39.5	43.0	23.75	1690	-65.5
18	Mamak, Malgorzata	1533	POL	−10N	+52B	+61N	=19B	=13N	−22N	=35B	+37B	+30N	5.5	38.0	38.0	19.25	1735	+78.8
19	Kaluza, Jakub	1704	POL	+47B	−1N	+26B	=18N	−16B	+50N	+17B	=11N	−13N	5.0	44.5	48.0	23.25	1770	+29.6
20	Krasniewski, Michal	1657	POL	+54N	=2B	+13N	−4B	−11B	+48N	−16B	=27N	+38B	5.0	43.5	46.0	22.00	1714	+11.6
21	Piotrowski, Stanislaw	1625	POL	+57N	−5B	=34N	=13B	+44N	+49B	−3N	+26B	−8N	5.0	42.5	44.0	19.25	1664	+14.8
22	Kruszynski, Lukasz	1633	POL	+55N	=4B	−2N	=38B	+46N	+18B	−10N	−23B	+40N	5.0	41.5	43.5	20.25	1673	+6.0
23	Debski, Artur	1560	POL	−8N	+39B	+43N	=30B	−9N	=28B	+45N	+22N	−17B	5.0	39.5	43.0	21.00	1692	+51.6
24	Bak, Jacek	1592	POL	+51B	−15N	+44B	−10B	+45N	−14N	+39B	+28N	−11B	5.0	39.0	42.5	19.50	1638	+19.6
25	Schudy, Michal	1551	POL	−6B	+47N	−45B	+42N	=48B	+41N	=13N	+32B	−10N	5.0	37.5	41.0	20.75	1648	+20.8
26	Stroz, Kazimierz	1516	POL	−5N	+57B	−19N	+58B	−15B	+47N	+50B	−21N	+36B	5.0	34.5	36.0	14.00	1592	+13.6
27	Slanina, Agnieszka	1561	POL	−1B	−45N	−32N	+57B	+55N	+52B	=46N	=20B	+39N	5.0	33.0	34.5	14.75	1543	-11.2
28	Szczurek, Julia	1516	POL	=11B	+41N	+35B	−3N	−12B	=23N	+37N	−24B	=32N	4.5	42.0	46.0	20.25	1629	+38.8
29	Gruszczynski, Miroslaw	1527	POL	+16B	−11N	+60B	=12N	−17B	−13B	−33N	+51N	+42B	4.5	41.0	42.0	17.00	1594	+13.6
30	Myachin, Vadim	1723	FID	+44B	+50N	−1B	=23N	=37B	+36N	=31B	−12N	−18B	4.5	40.5	44.0	18.25	1635	-21.6
31	Tendera, Jan	1618	POL	+56B	−3N	+49B	+45N	−10N	+38B	=30N	−13B	−14N	4.5	40.0	42.0	15.25	1636	+4.4
32	Milek, Maja	1628	POL	=41B	−16N	+27B	−17N	=34B	+43N	+38B	−25N	=28B	4.5	38.0	42.0	19.50	1618	-4.0
33	Dudek, Julia	1634	POL	+48B	=17N	−11B	−37N	−41B	+51N	+29B	+35N	−16N	4.5	37.5	41.0	18.75	1688	+12.4
34	Ekiert, Szymon	1512	POL	−3B	+48N	=21B	−16N	=32N	−45B	+52N	=47B	+46N	4.5	36.0	39.0	16.50	1562	+24.4
35	Heczko, Mieczyslaw	1715	POL	+43N	−36B	−28N	+39B	−49N	+44B	=18N	−33B	+45N	4.5	34.0	37.5	18.25	1520	-44.6
36	Golabek, Bartosz	1588	POL	+61B	+35N	−6B	+15N	−5N	−30B	+49N	−8B	−26N	4.0	41.5	41.5	13.50	1656	+15.6
37	Kotyla, Sabina	1602	POL	+59N	=13B	−4N	+33B	=30N	−15N	−28B	−18N	+52B	4.0	40.0	41.0	13.75	1562	-18.8
38	Szymura, Oliwia	1518	POL	−17B	+42N	=16B	=22N	+47B	−31N	−32N	+41B	−20N	4.0	38.0	41.5	16.75	1526	-3.2
39	Sokola, Julia	1477	POL	−12B	−23N	+41B	−35N	+61N	+40B	−24N	+49B	−27B	4.0	37.0	37.0	11.50	1435	-2.0
40	Szeliga, Cezary	1518	POL	−4N	+55B	−12B	−47N	+42B	−39N	+57B	+48N	−22B	4.0	34.5	36.0	11.00	809	-78.0
41	Szyrszen, Piotr	0	POL	=32N	−28B	−39N	+51B	+33N	−25B	=48B	−38N	+57B	4.0	33.5	35.0	13.50	1353	0.0
42	Gola, Hanna	0	POL	−7N	−38B	+57N	−25B	−40N	+61B	+44N	+43B	−29N	4.0	33.0	33.0	9.50	1376	0.0
43	Kaleta, Jan	1486	POL	−35B	+51N	−23B	−50N	+59B	−32B	+55N	−42N	+53B	4.0	30.0	31.0	9.50	1366	-28.4
44	Tarielashvili, Kira	1487	CZE	−30N	+58B	−24N	+60B	−21B	−35N	−42B	+61N	+55B	4.0	27.5	27.5	4.50	860	-41.6
45	Zyznowski, Adam	1485	POL	−9N	+27B	+25N	−31B	−24B	+34N	−23B	=50N	−35B	3.5	39.5	43.0	16.25	1517	+13.3
46	Reclaw, Amelia	1503	POL	−15B	+56N	+50B	−14N	−22B	+58N	=27B	−17N	−34B	3.5	36.5	38.0	9.50	1421	-42.4
47	Filipova, Vanesa	1461	CZE	−19N	−25B	+55N	+40B	−38N	−26B	+53B	=34N	F	3.5	34.0	36.0	11.25	1443	-8.4
48	Pytel, Kajetan	0	POL	−33N	−34B	+59N	+54B	=25N	−20B	=41N	−40B	=49N	3.5	33.0	34.0	9.75	1289	0.0
49	Kucia, Agata	1511	POL	−13N	+59B	−31N	+61B	+35B	−21N	−36B	−39N	=48B	3.5	32.5	32.5	7.25	1352	-45.2
50	Piotrowska, Jadwiga	1590	POL	+58N	−30B	−46N	+43B	+52N	−19B	−26N	=45B	F	3.5	32.0	33.5	10.25	1454	-49.3
51	FIDE 545012210	0	—	−24N	−43B	=54N	−41N	+56B	−33B	+59N	−29B	+58B	3.5	28.0	29.0	5.75	757	0.0
52	Musial, Ignacy	1437	POL	−14B	−18N	+56B	+53N	−50B	−27N	−34B	+58N	−37N	3.0	33.0	34.5	6.50	1262	-53.6
53	Milian, Jakub	1520	CZE	−2N	+54B	−10N	−52B	−58N	+59B	−47N	+56B	−43N	3.0	29.5	30.5	5.50	849	-78.0
54	Canibol, Jakub	0	POL	−20B	−53N	=51B	−48N	+60N	−55B	=58B	=57N	F	2.5	21.0	21.0	4.25	803	0.0
55	Stencel, Leon	0	POL	−22B	−40N	−47B	+56N	−27B	+54N	−43B	F	−44N	2.0	30.0	30.0	4.50	721	0.0
56	FIDE 91190215	0	—	−31N	−46B	−52N	−55B	−51N	F	+61B	−53N	+60B	2.0	20.5	20.5	1.00	734	0.0
57	FIDE 41833554	0	—	−21B	−26N	−42B	−27N	F	+60B	−40N	=54B	−41N	1.5	30.5	30.5	2.25	752	0.0
58	Likus, Tymon	0	POL	−50B	−44N	F	−26N	+53B	−46B	=54N	−52B	−51N	1.5	28.0	28.0	4.25	1243	0.0
59	FIDE 545018316	0	—	−37B	−49N	−48B	F	−43N	−53N	−51B	−60N	+61B	1.0	22.5	22.5	0.00	732	0.0
60	FIDE 23779896	0	—	F	−9B	−29N	−44N	−54B	−57N	F	+59B	−56N	1.0	21.5	21.5	1.00	770	0.0
61	FIDE 545064512	0	—	−36N	F	−18B	−49N	−39B	−42N	−56N	−44B	−59N	0.0	28.0	28.0	0.00	709	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Biela, JanPOL
+135.6
6.0 pts · #19
2Mamak, MalgorzataPOL
+78.8
5.5 pts · #22
3Becker, KrzysztofPOL
+73.2
7.0 pts · #2

Top rating losers

1Milian, JakubCZE
-78.0
3.0 pts · #56
2Szeliga, CezaryPOL
-78.0
4.0 pts · #61
3Kozusnikova, DanielaCZE
-65.5
5.5 pts · #14

Biggest upsets

R1+419 Elo gap
Gruszczynski, Miroslaw1527 beat Wieczorek, Jakub1946
R8+286 Elo gap
Biela, Jan1670 beat Macura, Mateusz1956
R6+276 Elo gap
Biela, Jan1670 beat Wieczorek, Jakub1946