Prebor OAZY 2025 - podzim r1-3

Open SwissStandard

51 players participated in this 3-round tournament, held from 15 Oct 2025 to 29 Oct 2025 in Praha, Czech Republic. 3 federations represented. Top 10 Elo average was 1944, and top seed was Jindrich Novak (🇨🇿 CZE, 2042).

Vaclav Budil (🇨🇿 CZE, 1952) won with 3.0/3, ahead of Dan Marsalek (3.0) and Tomas Kucera (2.5). Budil shared the lead from round 2, winning on tie-break.

The biggest upset came in round 1: Stepan Koukola (1581) beat Karel Sterba (1835), a +254-point gap.

Location

🇨🇿Praha, Czech Republic

Dates

15 Oct 2025 → 29 Oct 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 3 rounds

Top seed

🇨🇿Jindrich Novak2042

Avg top 10

1,944

Participants

Federations · 3 represented

🇨🇿Czech Republic×48

🇺🇸United States of America×1

🇰🇿Kazakhstan×1

Top 3

🥇
Vaclav Budil
🇨🇿CZE·1952
3.0pts·2591perf+35.6
🥈
Dan Marsalek
🇨🇿CZE·1832
3.0pts·2593perf+54.0
🥉
Tomas Kucera
🇨🇿CZE·1979
2.5pts·2051perf+4.6

How it unfolded

Top 6 · 3 rounds

Tight race until R3; 2 players tied at 3.0/3, decided on Buchholz.

Co-leaders

Budil3Marsalek3Kucera2.5Kovarik2.5Polak2.5Bobrakov-Timoskin2

R3 · TIEBREAK CLUSTER

2 players finish on 3.0/3. Budil takes the title on Buchholz Cut1 (4.0).

WIN STREAKS · 2 top finishers

Vaclav Budil 3 wins (R1–R3)Dan Marsalek 3 wins (R1–R3)

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	Pts	Bu C1	Bu	SB	Perf	Δ
1	Budil, Vaclav	1952	CZE	+21B	+10N	+6B	3.0	4.0	5.5	5.50	2591	+35.6
2	Marsalek, Dan	1832	CZE	+27B	+12N	+7B	3.0	4.0	5.5	5.50	2593	+54.0
3	Kucera, Tomas	1979	CZE	+46B	=8N	+15B	2.5	4.0	4.0	3.00	2051	+4.6
4	Polak, Jiri	1947	CZE	=9N	+24B	+22N	2.5	3.5	5.0	4.00	1919	-1.0
5	Kovarik, David	1917	CZE	=44N	+40B	+20N	2.5	2.0	2.5	2.25	2061	+7.4
6	Cermak, Milan	1907	CZE	+31N	+17B	−1N	2.0	5.0	6.0	3.00	1906	+0.8
7	Novak, Jindrich	2042	CZE	+45N	+16B	−2N	2.0	5.0	5.0	2.00	1906	-9.0
8	Pokorny, Jan	1803	CZE	+33N	=3B	=11N	2.0	4.5	5.5	3.25	1908	+8.8
9	Marko, Ondrej	1667	CZE	=4B	=13N	+34B	2.0	4.5	5.5	3.25	1903	+11.8
10	Hajek, Jiri	1788	CZE	+25N	−1B	+38N	2.0	4.5	5.5	2.50	1782	+1.0
11	Borovsky, Ivan	1835	CZE	+35B	=14N	=8B	2.0	4.0	5.0	3.00	1842	+1.0
12	Repa, Vaclav	1754	CZE	+41B	−2B	+33N	2.0	4.0	4.5	1.50	1684	-3.4
13	Budar, Jakub	0	CZE	=20N	=9B	+31N	2.0	3.5	4.5	2.75	1698	0.0
14	Kalvach, Ladislav	1764	CZE	+48N	=11B	=23N	2.0	3.5	3.5	1.75	1875	+6.0
15	Koper, Stefan	1813	CZE	+51N	+30B	−3N	2.0	3.5	3.5	1.00	1833	+2.4
16	Skaba, Ladislav	1791	CZE	+32B	−7N	+30B	2.0	3.0	4.0	2.00	1833	+3.8
17	Pacovsky, Ota	1783	CZE	+47B	−6N	+32B	2.0	3.0	3.0	1.00	1737	-1.2
18	Bobrakov-Timoskin, Alexandr	1812	CZE	+39B	+26N	F	2.0	2.5	2.5	2.50	2448	+11.8
19	Poznicek, Antonin	1785	CZE	+42N	+23B	F	2.0	2.0	2.0	2.00	2487	+32.0
20	Plesnivy, Martin	1761	CZE	=13B	+29N	−5B	1.5	4.5	6.0	2.50	1761	0.0
21	Akerman, Jan	1678	CZE	−1N	=25B	+42N	1.5	4.5	5.0	1.25	1631	-4.0
22	Dolezel, Jiri	1786	CZE	+34B	=28N	−4B	1.5	4.0	5.0	1.75	1797	+3.6
23	Pospech, Radim	1914	CZE	+43B	−19N	=14B	1.5	4.0	4.5	1.50	1728	-14.2
24	Horky, Karel	0	CZE	+50B	−4N	=26B	1.5	4.0	4.0	0.75	1817	0.0
25	Nurakyn, Alim	1483	KAZ	−10B	=21N	+43B	1.5	3.5	4.0	1.25	1700	+32.4
26	Rektor, David	1749	CZE	+49N	−18B	=24N	1.5	3.5	3.5	0.75	1012	-16.4
27	Jakus, Lubomir	1576	CZE	−2N	=41B	+45N	1.5	3.5	3.5	0.25	1777	+10.0
28	Zajicek, Karel	1973	CZE	+36N	=22B	F	1.5	2.5	2.5	1.75	1937	-1.4
29	Laube, Tomas	1604	CZE	=40N	−20B	+41N	1.5	2.0	2.5	0.75	962	-11.6
30	Koukola, Stepan	1581	CZE	+37B	−15N	−16N	1.0	4.0	5.0	1.00	1688	+14.8
31	Barth, Vit	1607	CZE	−6B	+47N	−13B	1.0	4.0	4.0	0.00	1669	+2.4
32	Clifton, Alexander J	1506	USA	−16N	+45B	−17N	1.0	4.0	4.0	0.00	1640	+9.4
33	Cerny, Vlastimil	1534	CZE	−8B	+46N	−12B	1.0	4.0	4.0	0.00	1634	+7.0
34	Dobrylovsky, Jiri	1472	CZE	−22N	+36B	−9N	1.0	3.5	4.5	1.00	1593	+8.0
35	Vasko, Pavel	1584	CZE	−11N	+48B	−37N	1.0	3.0	3.0	0.00	1035	-7.6
36	Stanke, Petr	1702	CZE	−28B	−34N	+47B	1.0	2.5	2.5	0.00	1500	-15.8
37	Sterba, Karel	1835	CZE	−30N	F	+35B	1.0	2.0	2.0	1.00	1583	-12.4
38	Veselsky, Jan	1535	CZE	F	+50N	−10B	1.0	2.0	2.0	0.00	1773	+11.8
39	Bobrakov-Timoskin, Denis	1542	CZE	−18N	+49B	F	1.0	2.0	2.0	0.00	1012	-7.2
40	Nesterov, Stepan	0	CZE	=29B	−5N	F	0.5	4.0	4.0	0.75	1568	0.0
41	Martinec, Ondrej	0	CZE	−12N	=27N	−29B	0.5	3.5	5.0	0.75	1374	0.0
42	Skalicky, Jindrich	1461	CZE	−19B	=43N	−21B	0.5	3.5	4.0	0.25	1426	-2.4
43	Vorsilka, Jiri	1633	CZE	−23N	=42B	−25N	0.5	3.0	3.5	0.25	1346	-21.8
44	Cmiko, Jakub	1974	CZE	=5B	F	F	0.5	2.5	2.5	1.25	1917	-1.6
45	Trefilik, Jiri	1723	CZE	−7B	−32N	−27B	0.0	3.5	4.5	0.00	908	-32.0
46	Fekar, Tomas	1717	CZE	−3N	−33B	F	0.0	3.5	3.5	0.00	957	-36.8
47	Silhan, Vladimir	1430	CZE	−17N	−31B	−36N	0.0	3.0	4.0	0.00	897	-11.0
48	FIDE 23798459	0	—	−14B	−35N	F	0.0	3.0	3.0	0.00	874	0.0
49	Neckar, Antonin	0	CZE	−26B	−39N	−?B	0.0	2.5	2.5	0.00	811	0.0
50	Pisa, Ivo	1757	CZE	−24N	−38B	F	0.0	2.5	2.5	0.00	737	-15.6
51	Stanke, Vilem	1562	CZE	−15B	F	F	0.0	2.0	2.0	0.00	1013	-3.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Marsalek, DanCZE
+54.0
3.0 pts · #2
2Budil, VaclavCZE
+35.6
3.0 pts · #1
3Nurakyn, AlimKAZ
+32.4
1.5 pts · #17

Top rating losers

1Fekar, TomasCZE
-36.8
0.0 pts · #46
2Trefilik, JiriCZE
-32.0
0.0 pts · #50
3Vorsilka, JiriCZE
-21.8
0.5 pts · #38

Biggest upsets

R1+254 Elo gap
Koukola, Stepan1581 beat Sterba, Karel1835
R2+230 Elo gap
Dobrylovsky, Jiri1472 beat Stanke, Petr1702
R2+222 Elo gap
Veselsky, Jan1535 beat Pisa, Ivo1757