8. Open Bohumin 2025 B - Challenger

Open SwissStandard

97 players participated in this 9-round tournament, held from 28 Jun 2025 to 05 Jul 2025 in Bohumin, Czech Republic. 3 federations represented. Top 10 Elo average was 1880, and top seed was Simon Kucera (🇨🇿 CZE, 1947).

Mateusz Macura (🇵🇱 POL, 1869) won with 7.5/9, ahead of Jan Bjolek (7.0) and Kornel Garwacki (6.5). Macura shared the lead from round 6 and broke clear in the final round.

The biggest upset came in round 3: Hugo Walder (1694) beat Simon Kucera (1947), a +253-point gap.

Location

🇨🇿Bohumin, Czech Republic

Dates

28 Jun 2025 → 05 Jul 2025

Time control

Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1

System

Swiss · 9 rounds

Top seed

🇨🇿Simon Kucera1947

Avg top 10

1,880

Participants

Federations · 3 represented

🇨🇿Czech Republic×51

🇵🇱Poland×42

🇩🇪Germany×1

Top 3

🥇
Mateusz Macura
🇵🇱POL·1869
7.5pts·2033perf+70.0
🥈
Jan Bjolek
🇨🇿CZE·1936
7.0pts·1989perf+12.2
🥉
Kornel Garwacki
🇵🇱POL·1892
6.5pts·1953perf+29.6

How it unfolded

Top 6 · 9 rounds

Mateusz Macura led from R4; +0.5-point edge over the runner-up.

Co-leaders

Macura7.5Bjolek7Garwacki6.5Hlavacek6.5Zidek6.5Horkova6.5

R4–R9 · LEAD HELD

Mateusz Macura held the sole lead from R4 through R9 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Mateusz Macura lost to Jan Bjolek (White).

WIN STREAKS · 3 top finishers

Mateusz Macura 4 wins (R1–R4)Jan Bjolek 3 wins (R3–R5)Kornel Garwacki 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Mateusz Macura	*	0	½	1
2Jan Bjolek	1	*	½	—
3Kornel Garwacki	½	½	*	0
4Pavel Hlavacek	0	—	1	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Macura, Mateusz	1869	POL	+85B	+35N	+29B	+28N	−2B	+13N	=3N	+14B	+6B	7.5	46.0	49.0	38.75	2033	+70.0
2	Bjolek, Jan	1936	CZE	+56B	=27N	+25B	+50N	+1N	=3B	=14N	=5B	+10B	7.0	47.0	51.0	39.25	1989	+12.2
3	Garwacki, Kornel	1892	POL	+66B	+32N	+46B	=13N	+4B	=2N	=1B	−6N	+24B	6.5	48.0	52.0	35.50	1953	+29.6
4	Horkova, Tereza	1900	CZE	+33N	+51B	=17N	+44B	−3N	=11B	+30N	+22B	=5N	6.5	44.5	49.0	33.50	1914	+10.4
5	Zidek, Damian	1763	CZE	−16B	+75N	+40B	+55N	+28B	+10N	=20B	=2N	=4B	6.5	44.5	48.0	33.00	1862	+50.4
6	Hlavacek, Pavel	1829	CZE	+73N	=81B	=47N	+37B	=29N	+27B	+18N	+3B	−1N	6.5	42.5	46.0	32.00	1897	+34.6
7	Kisielinski, Stanislaw	1728	POL	+49N	=47B	=70N	+93B	=22N	=21B	=11N	+18B	+14N	6.5	40.5	41.5	29.00	1894	+70.4
8	Puchala, Mateusz	1651	POL	+77B	−10N	−16B	+75N	+40B	+71N	=13B	+60N	+21B	6.5	38.5	42.0	27.75	1815	+78.0
9	Doniec, Mateusz	1808	POL	=57N	−70B	+74N	−54B	+41N	+45B	+53N	+27B	+15N	6.5	35.5	39.0	29.50	1728	-14.2
10	Gora, Maria	1857	POL	+59N	+8B	−44N	+61B	+30N	−5B	+17N	+20B	−2N	6.0	44.5	48.5	30.50	1852	-0.4
11	Bala, Matej	1799	CZE	=55B	−19N	+83B	+41N	+84B	=4N	=7B	=31N	+36B	6.0	41.0	44.0	27.50	1715	-30.4
12	Pavelek, Michael	1697	CZE	+91N	=45B	+58N	=30B	−14N	−15B	+84B	+28N	+34B	6.0	37.5	39.0	23.25	1741	+21.2
13	Skorupa, Tobias	1778	CZE	+41B	+52N	+39B	=3B	=17N	−1B	=8N	=19N	=31B	5.5	46.5	51.0	29.00	1762	-4.4
14	Kozdon, Marek	1824	CZE	+40B	−39N	+71B	+48N	+12B	+46N	=2B	−1N	−7B	5.5	46.0	49.5	27.00	1785	-14.8
15	Krisica, Lukas	1512	CZE	+24B	−29N	=35B	=25N	+81B	+12N	=23B	+26N	−9B	5.5	44.5	48.0	28.50	1800	+135.2
16	Cieslar, Tymoteusz	1525	POL	+5N	−17B	+8N	+42B	−18N	=44B	=32N	=38B	+51N	5.5	43.5	48.0	29.75	1823	+133.2
17	Tichy, Filip	1739	CZE	+65B	+16N	=4B	+84N	=13B	=20N	−10B	=34N	=22N	5.5	43.5	46.5	26.50	1806	+17.8
18	Kucera, Simon	1947	CZE	=53N	+31B	−27B	+56N	+16B	+23N	−6B	−7N	+48B	5.5	42.5	46.5	26.50	1751	-76.0
19	Kunze, Krystian	1583	POL	=22N	+11B	−30N	=76B	=42N	+61B	+29N	=13B	=20N	5.5	41.5	45.0	27.50	1829	+116.8
20	Jurok, Vojtech	1793	CZE	=58N	+74B	+53N	=27B	+44N	=17B	=5N	−10N	=19B	5.5	41.0	44.5	25.25	1742	-9.8
21	Chrostek, Lukas	1887	CZE	+54N	−44B	+36B	=32N	+50B	=7N	=60B	+48N	−8N	5.5	40.5	44.5	25.75	1739	-30.2
22	Gresek, Oskar	1849	CZE	=19B	=55N	+66B	+81N	=7B	=60N	+46B	−4N	=17B	5.5	40.5	44.0	24.75	1773	-31.2
23	Dziwoki, Pawel	1778	POL	+72N	−28B	=54N	+31B	+47N	−18B	=15N	=39B	+44N	5.5	39.0	42.5	24.75	1719	-12.2
24	Michalska, Anna-Maria	1759	POL	−15N	+69B	+59N	+33B	−27N	=53B	+56N	+44B	−3N	5.5	38.5	42.5	23.50	1714	-18.0
25	Sobek, Mikulas	1687	CZE	=63N	+87B	−2N	=15B	=57N	=70B	+73N	=45B	+49N	5.5	36.5	39.0	21.25	1632	-22.8
26	Glajc, Nikodem	1743	POL	−45N	+68B	=73N	=58B	+59N	=33B	+54N	−15B	+47N	5.5	35.5	39.0	22.75	1635	-47.6
27	Walder, Hugo	1694	CZE	+62B	=2B	+18N	=20N	+24B	−6N	=34B	−9N	=40B	5.0	46.5	50.5	26.25	1811	+54.8
28	Krisicova, Neli	1637	CZE	+82B	+23N	+38N	−1B	−5N	−30B	+72N	−12B	+69N	5.0	43.0	46.5	21.50	1717	+33.2
29	Slamecka, David	1700	CZE	+83N	+15B	−1N	+49B	=6B	−34N	−19B	=53N	+57B	5.0	42.5	46.0	22.75	1685	-7.6
30	Cieslar, Nikodem	1744	POL	+92B	=48N	+19B	=12N	−10B	+28N	−4B	F	+33N	5.0	42.0	43.5	22.25	1770	+9.6
31	Vydra, David	1583	CZE	F	−18N	+62B	−23N	+82B	+43N	+37B	=11B	=13N	5.0	40.0	40.0	23.25	1775	+69.2
32	Rybar, Matyas	1694	CZE	+80N	−3B	+72N	=21B	=34B	=48N	=16B	−36N	+62B	5.0	39.5	43.0	21.25	1653	-16.0
33	Mamak, Malgorzata	1607	POL	−4B	+67N	+94B	−24N	+77B	=26N	+35B	=46N	−30B	5.0	39.5	40.5	18.50	1670	+34.8
34	Stehlik, Jiri	1836	CZE	=70N	+57B	=61N	=47B	=32N	+29B	=27N	=17B	−12N	5.0	39.0	42.5	22.75	1703	-30.4
35	Boff, Vojtech	1653	CZE	+90N	−1B	=15N	=45B	=58N	+57B	−33N	=54B	+59N	5.0	38.5	40.5	19.00	1592	-27.6
36	Helis, Pawel	1469	POL	+43N	=76B	−21N	=53B	−37N	+59B	+70N	+32B	−11N	5.0	38.0	41.5	21.25	1731	+58.0
37	Roessler, Helena	1632	GER	+93B	−46N	+65B	−6N	+36B	=38B	−31N	+84N	=43B	5.0	38.0	39.0	18.00	1639	+2.4
38	Repak, Jan	1829	CZE	+71B	+64N	−28B	+39N	−46B	=37N	−48B	=16N	+53B	5.0	37.5	41.0	21.75	1667	-36.8
39	Bala, Bartosz	1636	POL	+79N	+14B	−13N	−38B	=49N	F	+71B	=23N	+60B	5.0	37.0	37.0	21.50	1769	+50.0
40	Cichocki, Jakub	1561	POL	−14N	+97B	−5N	+88B	−8N	=79B	+78N	+61B	=27N	5.0	37.0	37.0	14.25	1613	+13.2
41	Swoboda, Wojciech	1532	POL	−13N	=79B	+87N	−11B	−9B	=62N	+77B	+85N	+64B	5.0	36.0	38.5	16.75	1655	+50.8
42	Kacyrz, Filip	1716	POL	+75B	=84N	=48B	−16N	=19B	−55N	=57B	+63B	+54N	5.0	35.0	38.0	20.00	1581	-62.4
43	Hovhannisyan, Narek	1699	CZE	−36B	=62N	=78N	+72B	=70N	−31B	+80N	+56B	=37N	5.0	33.5	37.0	19.00	1537	-66.0
44	Stepankova, Linda	1670	CZE	+89B	+21N	+10B	−4N	−20B	=16N	+55B	−24N	−23B	4.5	44.0	46.5	20.75	1714	+16.4
45	Bandura, Maksymilian	1505	POL	+26B	=12N	−50B	=35N	+64B	−9N	+85B	=25N	F	4.5	41.5	44.5	20.75	1735	+101.6
46	Krotki, Lukas	1718	CZE	+69N	+37B	−3N	+70B	+38N	−14B	−22N	=33B	F	4.5	41.0	44.5	20.00	1756	+18.8
47	Michniak, Julia	1633	POL	+96B	=7N	=6B	=34N	−23B	−84N	+68B	+55N	−26B	4.5	40.0	40.0	17.00	1637	-0.8
48	Mazurek, Richard	1631	CZE	+88N	=30B	=42N	−14B	+93N	=32B	+38N	−21B	−18N	4.5	39.0	40.0	16.00	1704	+22.4
49	Machura, Jaroslav	1497	CZE	−7B	+96N	+64B	−29N	=39B	−56N	+50B	+52N	−25B	4.5	39.0	39.0	15.50	1628	+25.6
50	Martinek, Filip	1711	CZE	=74N	+78B	+45N	−2B	−21N	−54B	−49N	+88B	+67B	4.5	36.5	39.0	16.25	1550	-67.2
51	Cichocki, Aleksander	1689	POL	+67B	−4N	−55B	−65N	+91B	=68N	+90B	+66N	−16B	4.5	34.0	35.5	13.50	1514	-75.6
52	Halacz, Tymoteusz	1632	POL	+94N	−13B	−93N	+91B	=78N	=58B	=63N	−49B	+80N	4.5	27.5	28.5	11.75	1465	-58.4
53	Skorupa, Antonina	1629	POL	=18B	+86N	−20B	=36N	+65B	=24N	−9B	=29B	−38N	4.0	42.0	45.0	17.50	1650	+9.6
54	Rduch, Diana	1597	POL	−21B	+89N	=23B	+9N	−60B	+50N	−26B	=35N	−42B	4.0	41.5	44.0	18.75	1670	+26.8
55	Dubiel, Antoni	1548	POL	=11N	=22B	+51N	−5B	=61N	+42B	−44N	−47B	=78N	4.0	40.5	44.0	19.00	1647	+43.6
56	Stepan, Vaclav	1618	CZE	−2N	=83B	+63N	−18B	+86N	+49B	−24B	−43N	=65B	4.0	39.0	42.0	15.25	1586	-20.8
57	Sobek, Lukas	1555	CZE	=9B	−34N	=86B	+94N	=25B	−35N	=42N	+76B	−29N	4.0	38.5	39.5	14.50	1606	+9.2
58	Ostas, Jakub	1544	POL	=20B	+60N	−12B	=26N	=35B	=52N	−81B	−64N	+85B	4.0	38.0	41.0	17.25	1644	+47.2
59	Setnik, Jakub	1588	POL	−10B	+77N	−24B	+67N	−26B	−36N	+89B	+72N	−35B	4.0	38.0	40.5	13.50	1520	-33.2
60	Lorenc, Matej	1758	CZE	F	−58B	+80N	+73B	+54N	=22B	=21N	−8B	−39N	4.0	37.5	37.5	16.50	1626	-49.6
61	Brejcha, Lukas	1650	CZE	=87N	+63B	=34B	−10N	=55B	−19N	+65B	−40N	=84B	4.0	36.5	39.0	15.25	1537	-53.6
62	Trcka, Lukas	1445	CZE	−27N	=43B	−31N	+87B	=73N	=41B	=76N	+70B	−32N	4.0	35.5	38.0	14.50	1565	+54.4
63	Beran, Daniel	1417	CZE	=25B	−61N	−56B	+83N	=85B	+64N	=52B	−42N	=66B	4.0	34.5	37.5	16.00	1583	+37.0
64	Jordan, Tobias	1641	CZE	+97N	−38B	−49N	+69B	−45N	−63B	+74N	+58B	−41N	4.0	34.5	34.5	11.50	1451	-83.6
65	Rybar, Vojta	1499	CZE	−17N	+88B	−37N	+51B	−53N	=76B	−61N	+86B	=56N	4.0	33.5	36.0	13.75	1552	+18.0
66	Burdzy, Piotr	1602	POL	−3N	+91B	−22N	−78B	=80N	+87B	+79N	−51B	=63N	4.0	33.5	35.0	11.25	1492	-45.6
67	Zyla, Artur	1428	CZE	−51N	−33B	+97N	−59B	−72N	+83N	+75B	+73B	−50N	4.0	32.0	32.0	10.50	1492	+22.0
68	Helis, Wojciech	1481	POL	−76N	−26N	=82B	=80B	+88N	=51B	−47N	+87B	=70N	4.0	31.0	33.5	12.50	1505	+5.2
69	Kadlecova, Alena	1493	CZE	−46B	−24N	+95B	−64N	−89B	+91N	+82B	+71N	−28B	4.0	30.0	31.0	9.50	1504	-4.4
70	Chlosta, Michal	1571	POL	=34B	+9N	=7B	−46N	=43B	=25N	−36B	−62N	=68B	3.5	42.0	46.0	19.50	1572	-6.8
71	Safarcik, Miroslav	1565	CZE	−38N	+90B	−14N	+79B	+76N	−8B	−39N	−69B	=82N	3.5	36.5	38.5	10.75	1421	-20.4
72	Glajc, Ireneusz	1530	POL	−23B	+82N	−32B	−43N	+67B	+77N	−28B	−59B	=76N	3.5	35.5	39.0	12.75	1476	-12.6
73	Kadlec, Jaroslav	1563	CZE	−6B	+95N	=26B	−60N	=62B	+89N	−25B	−67N	=77B	3.5	35.5	36.5	10.00	1384	-62.4
74	Boff, Arnost	1485	CZE	=50B	−20N	−9B	−77N	+83B	=82N	−64B	=75N	+88B	3.5	34.5	37.0	11.75	1459	-6.2
75	Siwko, Slawomir	1490	POL	−42N	−5B	+90N	−8B	−79N	+86B	−67N	=74B	+87N	3.5	34.5	36.5	9.25	1454	-18.0
76	Chvatal, Jaroslav	1709	CZE	+68B	=36N	−84B	=19N	−71B	=65N	=62B	−57N	=72B	3.5	33.5	36.5	15.00	1433	-65.2
77	Kupczyk, Jan	0	POL	−8N	−59B	+92N	+74B	−33N	−72B	−41N	+93B	=73N	3.5	32.5	33.5	7.75	1413	+1.2
78	Duda, Adam	1434	POL	F	−50N	=43B	+66N	=52B	−81N	−40B	+92N	=55B	3.5	32.0	32.0	12.25	1573	+55.2
79	Vajdak, Milan	0	CZE	−39B	=41N	=85B	−71N	+75B	=40N	−66B	+89N	F	3.5	31.5	31.5	12.50	1467	0.0
80	Nowak, Franciszek	1440	POL	−32B	=85N	−60B	=68N	=66B	+96N	−43B	+90N	−52B	3.5	31.5	31.5	7.50	1409	0.0
81	Bucek, Vit	1645	CZE	+95B	=6N	F	−22B	−15N	+78B	+58N	F	F	3.5	31.0	31.0	11.75	1633	-4.8
82	Sobon, Oskar	0	POL	−28N	−72B	=68N	+92B	−31N	=74B	−69N	+97N	=71B	3.5	30.0	30.0	7.00	1396	0.0
83	Zidkova, Agnes	1472	CZE	−29B	=56N	−11N	−63B	−74N	−67B	+95B	+96N	+92B	3.5	29.0	29.0	4.50	1334	-48.8
84	Mrozek, Paulina	1495	POL	F	=42B	+76N	−17B	−11N	+47B	−12N	−37B	=61N	3.0	39.5	39.5	12.50	1611	+43.6
85	Sekyra, Vojtech	1595	CZE	−1N	=80B	=79N	=86B	=63N	+93B	−45N	−41B	−58N	3.0	35.0	36.0	8.00	1275	-96.4
86	Svec, Stepan	1424	CZE	F	−53B	=57N	=85N	−56B	−75N	+96B	−65N	+93B	3.0	23.5	23.5	4.50	1291	-38.8
87	Kupczyk, Lukasz	0	POL	=61B	−25N	−41B	−62N	+95B	−66N	+94B	−68N	−75B	2.5	31.0	32.0	4.00	1134	-72.0
88	Zyla, Radoslav	0	CZE	−48B	−65N	+89B	−40N	−68B	=92N	+91B	−50N	−74N	2.5	29.5	31.0	4.75	1290	0.0
89	Kolder, Vojtech	0	CZE	−44N	−54B	−88N	+97B	+69N	−73B	−59N	−79B	=91N	2.5	27.5	27.5	4.75	1371	0.0
90	Hasnik, Ksawery	0	POL	−35B	−71N	−75B	+95N	F	+94B	−51N	−80B	F	2.0	22.0	22.0	2.00	800	0.0
91	Helis, Jan	1455	POL	−12B	−66N	+96B	−52N	−51N	−69B	−88N	F	=89B	1.5	28.0	28.0	1.25	831	-54.8
92	Tarielashvili, Kira	1511	CZE	−30N	F	−77B	−82N	F	=88B	+93N	−78B	−83N	1.5	23.5	23.5	2.25	715	-80.0
93	Zaczek, Jan	0	POL	−37N	F	+52B	−7N	−48B	−85N	−92B	−77N	−86N	1.0	31.5	31.5	4.50	1251	0.0
94	FIDE 91197724	0	—	−52B	F	−33N	−57B	F	−90N	−87N	+95B	F	1.0	20.5	20.5	1.00	750	0.0
95	FIDE 545026572	0	—	−81N	−73B	−69N	−90B	−87N	+97B	−83N	−94N	F	1.0	20.0	20.0	0.00	724	0.0
96	Van Der Coghen, Wiktor	0	POL	−47N	−49B	−91N	F	F	−80B	−86N	−83B	F	0.0	20.5	20.5	0.00	699	0.0
97	FIDE 545015279	0	—	−64B	−40N	−67B	−89N	F	−95N	F	−82B	F	0.0	20.0	20.0	0.00	743	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Krisica, LukasCZE
+135.2
5.5 pts · #19
2Cieslar, TymoteuszPOL
+133.2
5.5 pts · #23
3Kunze, KrystianPOL
+116.8
5.5 pts · #21

Top rating losers

1Sekyra, VojtechCZE
-96.4
3.0 pts · #89
2Jordan, TobiasCZE
-83.6
4.0 pts · #67
3Tarielashvili, KiraCZE
-80.0
1.5 pts · #93

Biggest upsets

R3+253 Elo gap
Walder, Hugo1694 beat Kucera, Simon1947
R1+247 Elo gap
Krisica, Lukas1512 beat Michalska, Anna-Maria1759
R1+238 Elo gap
Bandura, Maksymilian1505 beat Glajc, Nikodem1743