41. ChessOrg-Schachfestival Bad Woerishofen 2026 B-Open

Open SwissStandard

73 players participated in this 9-round tournament, held from 13 Mar 2026 to 21 Mar 2026 in Bad Woerishofen, Germany. 1 titled players from 8 federations. Top 10 Elo average was 1949, and top seed was Krishnan Sudharsan (🇩🇰 DEN, 1991).

Adelya Ospanova (🇰🇿 KAZ, 1750) won with 7.5/9, ahead of Mathias Schaedler (7.0) and Frank Dreke (6.5). Ospanova shared the lead from round 8 and broke clear in the final round.

The biggest upset came in round 4: Filippo Flocco (1451) beat Nina Hashagen (1792), a +341-point gap.

Location

🇩🇪Bad Woerishofen, Germany

Dates

13 Mar 2026 → 21 Mar 2026

Time control

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

System

Swiss · 9 rounds

Top seed

🇩🇰Krishnan Sudharsan1991

Avg top 10

1,949

Participants

Titled players · 1

WCM×1

Federations · 8 represented

🇩🇪Germany×63

🇳🇱Netherlands×2

🇰🇿Kazakhstan×1

🇮🇹Italy×1

🇳🇴Norway×1

🇩🇰Denmark×1

🇦🇹Austria×1

🇯🇪Jersey×1

Top 3

🥇
Adelya Ospanova
🇰🇿KAZ·1750
7.5pts·2181perf+97.6
🥈
Mathias Schaedler
🇩🇪GER·1896
7.0pts·2071perf+77.6
🥉
Frank Dreke
🇩🇪GER·1885
6.5pts·2033perf+35.8

How it unfolded

Top 6 · 9 rounds

Adelya Ospanova led from R9; +0.5-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R9.

Co-leaders

Ospanova7.5Schaedler7Dreke6.5Kolb6.5Sudharsan6Hashagen6

R9 · LEADER CHANGE21 Mar

Adelya Ospanova takes the sole lead (7.5/9).

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Adelya Ospanova drew with Mathias Schaedler (White).

WIN STREAKS · 2 top finishers

Adelya Ospanova 3 wins (R7–R9)Mathias Schaedler 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Adelya Ospanova	*	½	—	—
2Mathias Schaedler	½	*	1	½
3Frank Dreke	—	0	*	—
4Wolfgang Kolb	—	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Ospanova, Adelya	1750	KAZ	=37N	+32B	=11N	+35B	+19N	=2B	+9N	+6B	+5N	7.5	44.0	48.0	39.75	2181	+97.6
2	Schaedler, Mathias	1896	GER	+44B	+25N	+30B	=5N	+18B	=1N	=37B	+3N	=4B	7.0	44.5	48.0	36.00	2071	+77.6
3	Dreke, Frank	1885	GER	+54N	+38B	=9N	=7B	+10N	=6B	+14N	−2B	+37N	6.5	43.5	47.0	31.25	2033	+35.8
4	Kolb, Wolfgang	1977	GER	−28B	+59N	+26B	=31N	+51B	+12N	+7B	=5N	=2N	6.5	41.5	44.5	31.25	1992	+3.0
5	Hashagen, Tim	1928	GER	+20N	+15B	+19N	=2B	=7N	+25B	=6N	=4B	−1B	6.0	48.5	53.0	32.75	1990	+15.2
6	Sudharsan, Krishnan	1991	DEN	+26B	=29N	+17B	=14N	+30B	=3N	=5B	−1N	+38B	6.0	44.0	48.0	29.25	1969	-4.8
7	Bogner, Simon	1876	GER	+64B	+28N	+13B	=3N	=5B	F	−4N	+15B	+10N	6.0	42.5	42.5	29.75	2046	+35.4
8	Specht, Helmut	1909	GER	+61B	−17N	+40B	−25N	+28B	+18N	−10B	+51N	+12B	6.0	37.5	40.5	25.50	1931	+4.6
9	Herold, Gunther	1953	GER	+40B	+12N	=3B	−18N	+31B	+38N	−1B	=10N	=30B	5.5	43.0	47.0	26.25	1904	-11.0
10	Marzik, Arne	1809	GER	+71B	−19N	+62B	+29N	−3B	+22N	+8N	=9B	−7B	5.5	41.5	42.5	22.25	1903	+17.8
11	Santl, Anton	1872	GER	+72B	=27N	=1B	=42N	=21B	=17N	+18B	=30N	=22B	5.5	40.5	41.0	23.25	1914	+8.8
12	Loginov, Anatoly	1851	GER	+45N	−9B	+47N	=41B	+24N	−4B	+20N	+34B	−8N	5.5	40.0	43.5	23.50	1899	+12.6
13	Litfin, Boris	1936	GER	+16N	+35B	−7N	−34B	−20N	=57B	+64N	+26B	+27N	5.5	37.5	40.0	23.00	1816	-22.8
14	Buchaeckert, Juergen	1865	GER	+57N	=41B	+23N	=6B	F	+48N	−3B	=38N	+17B	5.5	37.0	37.0	23.50	1974	+23.4
15	Stiller, Bjoern	1846	GER	+68B	−5N	+64B	−48N	+49B	=27N	+41B	−7N	+25B	5.5	34.5	36.0	18.25	1878	+7.4
16	Hoppe, Pascal	1766	GER	−13B	−56N	+65N	−45B	=46N	+69B	+52N	+50B	+34N	5.5	29.0	30.5	16.75	1701	-22.0
17	Brinz, Christian	1831	GER	+58N	+8B	−6N	−19B	+45N	=11B	=21N	+36B	−14N	5.0	41.0	44.0	22.25	1859	+13.6
18	Martin, Richard	1821	GER	=33N	+46B	+70N	+9B	−2N	−8B	−11N	=20B	+58N	5.0	40.0	41.5	18.25	1794	-4.2
19	Kerber, Alfred	1873	AUT	+63N	+10B	−5B	+17N	−1B	+26N	+25B	F	F	5.0	40.0	40.0	22.50	1956	+16.0
20	Pils, Martina	1752	GER	−5B	+68N	−22B	+56N	+13B	=29N	−12B	=18N	+51B	5.0	38.0	39.5	18.25	1863	+26.6
21	De Witte, Wiebe	1903	NED	=23N	+24B	=41N	=38B	=11N	F	=17B	=25N	+28B	5.0	37.5	37.5	23.50	1901	-0.8
22	Wessels, Stefan Edo	1965	GER	−41N	+63B	+20N	+37B	−25N	−10B	=26N	+47B	=11N	5.0	36.5	39.5	20.50	1837	-29.6
23	Keymling, Detlev Juergen, Dr.	1718	GER	=21B	+53N	−14B	−51N	+65B	+42B	=36N	−35N	+40B	5.0	34.5	36.5	18.25	1846	+31.2
24	Baron, Sven	1797	GER	=48B	−21N	+59B	+53N	−12B	+60N	=35B	=31N	=29B	5.0	34.0	37.0	18.00	1862	+14.2
25	Schmitzer, Peter	1825	GER	+52N	−2B	+33N	+8B	+22B	−5N	−19N	=21B	−15N	4.5	44.0	47.5	21.50	1801	-4.8
26	Mutabdzic, Luka	1800	GER	−6N	+55B	−4N	+70B	+33N	−19B	=22B	−13N	+57N	4.5	39.0	40.5	15.00	1780	-10.4
27	Stangl, Ludwig	0	GER	+34N	=11B	−67N	+50B	=32N	=15B	=31B	=29N	−13B	4.5	38.0	40.0	20.25	1875	0.0
28	Wagner, Kilian	1795	GER	+4N	−7B	−66N	+64B	−8N	+56B	=53N	+32B	−21N	4.5	37.0	39.0	18.25	1849	+32.0
29	Ammann, Bernhard	1859	GER	+55N	=6B	F	−10B	=47N	=20B	+44N	=27B	=24N	4.5	36.5	36.5	19.00	1825	-11.2
30	Klein, Reinhard	1846	GER	+65N	+67B	−2N	+66B	−6N	=32B	F	=11B	=9N	4.5	36.0	38.0	13.75	1905	+16.0
31	Felser, Martin	1848	GER	=46N	=33B	+58N	=4B	−9N	+47B	=27N	=24B	F	4.5	36.0	36.0	18.50	1811	-4.6
32	Leutz, Hans	1888	GER	=39B	−1N	+73B	+60N	=27B	=30N	−38B	−28N	+44B	4.5	35.5	35.5	13.00	1762	-27.0
33	Wiedemann, Felix	0	GER	=18B	=31N	−25B	+61N	−26B	−39N	+56N	+49B	=36N	4.5	33.5	36.5	16.50	1755	0.0
34	Besou, Jad	1841	GER	−27B	+72N	+56B	+13N	=48B	−37N	+66B	−12N	−16B	4.5	33.5	34.0	12.75	1871	+15.6
35	Weidl, Robert	1860	GER	+56B	−13N	+44B	−1N	+39B	F	=24N	+23B	F	4.5	33.5	33.5	18.00	1847	-1.2
36	Wltschek, Christian	1850	GER	=70B	=49N	=60B	=39N	+44B	=41N	=23B	−17N	=33B	4.5	32.5	34.0	16.25	1704	-30.4
37	Koelbl, Wolfgang	1912	GER	=1B	+73N	+39B	−22N	F	+34B	=2N	F	−3B	4.0	43.5	43.5	15.75	1880	-5.0
38	Kimura, Jonas	1831	GER	+62B	−3N	+49B	=21N	F	−9B	+32N	=14B	−6N	4.0	39.5	41.5	16.25	1821	-1.8
39	Gradehand, Lukas	1677	GER	=32N	+50B	−37N	=36B	−35N	+33B	−42N	−58B	+46N	4.0	33.0	36.0	16.00	1773	+32.8
40	Russ, Oliver	1777	GER	−9N	+45B	−8N	+58B	−66N	=52B	+57N	=53B	−23N	4.0	33.0	35.0	13.00	1701	-15.0
41	Schmitz, Tim	1791	GER	+22B	=14N	=21B	=12N	F	=36B	−15N	+66N	F	4.0	33.0	33.0	17.25	1934	+27.6
42	Gronde, Benedikt	1805	GER	+69N	F	=48B	=11B	F	−23N	+39B	F	+63N	4.0	26.5	26.5	13.00	1852	+6.6
43	Specht, Guenter	1764	GER	−67N	=65B	−50N	+71B	=52N	=45B	+46N	=44B	F	4.0	25.0	26.0	10.75	1635	-20.4
44	Fischer, Johann	1716	GER	−2N	+52B	−35N	+69B	−36N	+58B	−29B	=43N	−32N	3.5	35.5	37.0	10.00	1452	-28.0
45	Miggelbrink, Markus	1609	GER	−12B	−40N	+72B	+16N	−17B	=43N	−50N	=64B	=54N	3.5	33.5	34.0	11.00	1677	+14.4
46	Steinschuld, Jo	1588	NED	=31B	−18N	−53B	=59N	=16B	+61N	−43B	+60N	−39B	3.5	32.5	35.5	12.50	1688	+18.0
47	Sazlik, Mucahit	1739	TUR	+66B	−48N	−12B	+62N	=29B	−31N	+60B	−22N	F	3.5	32.5	34.5	10.25	1772	+4.6
48	Bindl, Roland	1989	GER	=24N	+47B	=42N	+15B	=34N	−14B	F	F	F	3.5	32.5	32.5	15.75	1873	-34.4
49	Moller, Sveinung	1615	NOR	=50N	=36B	−38N	+54B	−15N	+72B	−51N	−33N	=61B	3.5	32.0	32.5	9.50	1737	+23.8
50	Knipfer, Peter	1858	GER	=49B	−39N	+43B	−27N	−60B	+55N	+45B	−16N	F	3.5	31.5	31.5	12.75	1678	-64.8
51	Urban, Rudolf	1823	GER	=59B	−70N	+71N	+23B	−4N	F	+49B	−8B	−20N	3.5	31.5	31.5	11.00	1635	-29.4
52	Khuat, Tam	0	GER	−25B	−44N	=57B	+63N	=43B	=40N	−16B	+65N	F	3.5	31.0	33.0	10.50	1653	0.0
53	Walda, Michael	1892	GER	=60N	−23B	+46N	−24B	+70N	F	=28B	=40N	F	3.5	30.5	30.5	10.75	1707	-32.6
54	Dahmen, Juergen	1669	GER	−3B	−62N	+68B	−49N	−56B	=65N	+71B	=55N	=45B	3.5	26.5	27.5	7.00	1523	-28.4
55	Schaefermeyer, Daniel	1620	GER	−29B	−26N	−61B	F	+71N	−50B	+69N	=54B	+64N	3.5	24.0	24.0	6.75	1571	-15.2
56	Woehl, Torsten	1623	GER	−35N	+16B	−34N	−20B	+54N	−28N	−33B	+68B	F	3.0	33.5	33.5	10.50	1700	+12.8
57	Ashbrooke, MonikaWCM	1627	JCI	−14B	F	=52N	F	+59B	=13N	−40B	+62N	−26B	3.0	31.0	31.0	10.50	1523	-8.2
58	Brosch, Franz	0	GER	−17B	+61N	−31B	−40N	F	−44N	+65B	+39N	−18B	3.0	31.0	31.0	9.00	1645	0.0
59	Kormann, Lola	0	GER	=51N	−4B	−24N	=46B	−57N	=68B	−63N	+72B	=62B	3.0	29.0	29.5	6.25	1567	0.0
60	Natterer, Winfried	1696	GER	=53B	F	=36N	−32B	+50N	−24B	−47N	−46B	+71N	3.0	29.0	29.0	8.50	1644	-10.6
61	Gajewski, Richard	1733	GER	−8N	−58B	+55N	−33B	=69N	−46B	+68N	−63B	=49N	3.0	28.5	30.0	7.50	1602	-22.2
62	Janjetovic, Maksim	0	GER	−38N	+54B	−10N	−47B	−64N	=63B	+72N	−57B	=59N	3.0	28.0	28.5	7.00	1561	0.0
63	Sauerwein, Martin	1645	GER	−19B	−22N	F	−52B	=68N	=62N	+59B	+61N	−42B	3.0	28.0	28.0	8.25	1641	-2.2
64	Kofler, Albin Ernst	1662	ITA	−7N	+69B	−15N	−28N	+62B	F	−13B	=45N	−55B	2.5	33.0	33.0	6.25	1377	-32.8
65	Flocco, Filippo	1451	GER	−30B	=43N	−16B	+73N	−23N	=54B	−58N	−52B	−69N	2.0	30.5	30.5	3.75	1634	+45.2
66	Mueller, Wolfgang	1912	GER	−47N	F	+28B	−30N	+40B	F	−34N	−41B	F	2.0	28.0	28.0	8.50	1671	-38.6
67	Schwis, Joachim	1930	GER	+43B	−30N	+27B	F	F	F	F	F	F	2.0	17.0	17.0	8.50	1805	-6.8
68	Schade, Thomas	1576	GER	−15N	−20B	−54N	=72N	=63B	=59N	−61B	−56N	F	1.5	26.5	26.5	3.25	1391	-27.0
69	Zimmermann, Christian	0	GER	−42B	−64N	F	−44N	=61B	−16N	−55B	−71N	+65B	1.5	25.0	25.0	3.50	1449	0.0
70	Meyer, Christian, Dr.	1590	GER	=36N	+51B	−18B	−26N	−53B	F	F	F	F	1.5	21.0	21.0	5.75	1688	+10.4
71	FIDE 533075646	0	—	−10N	F	−51B	−43N	−55B	F	−54N	+69B	−60B	1.0	24.5	24.5	1.50	930	0.0
72	Stolzenwald, Frank	1632	GER	−11N	−34B	−45N	=68B	F	−49N	−62B	−59N	F	0.5	24.5	24.5	0.75	1336	-31.2
73	Hashagen, Nina	1792	GER	F	−37B	−32N	−65B	F	F	F	F	F	0.0	13.5	13.5	0.00	950	-63.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Ospanova, AdelyaKAZ
+97.6
7.5 pts · #1
2Schaedler, MathiasGER
+77.6
7.0 pts · #2
3Flocco, FilippoGER
+45.2
2.0 pts · #60

Top rating losers

1Knipfer, PeterGER
-64.8
3.5 pts · #36
2Hashagen, NinaGER
-63.6
0.0 pts · #73
3Mueller, WolfgangGER
-38.6
2.0 pts · #61

Biggest upsets

R4+341 Elo gap
Flocco, Filippo1451 beat Hashagen, Nina1792
R8+241 Elo gap
Ospanova, Adelya1750 beat Sudharsan, Krishnan1991
R2+233 Elo gap
Meyer, Christian, Dr.1590 beat Urban, Rudolf1823