4. Ruedersdorfer Elo-Open

Open SwissStandard

63 players participated in this 6-round tournament, held from 24 Jul 2025 to 27 Jul 2025 in Ruedersdorf, Germany. 3 titled players from 2 federations. Top 10 Elo average was 2109, and top seed was Henrik Petersen (🇩🇪 GER, FM, 2268).

Henrik Petersen (🇩🇪 GER, FM, 2268) won with 5.5/6, ahead of Karsten Schulz (5.5) and Felix Teichert (5.0). Petersen shared the lead from round 1, winning on tie-break.

The biggest upset came in round 1: Nico Majewski (1733) beat Zdenek Kalousek (2149), a +416-point gap.

Location

🇩🇪Ruedersdorf, Germany

Dates

24 Jul 2025 → 27 Jul 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇩🇪FMHenrik Petersen2268

Avg top 10

2,109

Participants

Titled players · 3

FM×2

CM×1

Federations · 2 represented

🇩🇪Germany×57

🇨🇿Czech Republic×1

Top 3

🥇
FMHenrik Petersen
🇩🇪GER·2268
5.5pts·2386perf+10.8
🥈
FMKarsten Schulz
🇩🇪GER·2120
5.5pts·2372perf+30.0
🥉
Felix Teichert
🇩🇪GER·2072
5.0pts·2177perf+15.8

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 2 players tied at 5.5/6, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders

Petersen5.5Schulz5.5Teichert5Ball4.5Nguyen4.5Dodul4.5

R6 · TIEBREAK CLUSTER

2 players finish on 5.5/6. Petersen takes the title on Buchholz Cut1 (22.5).

R5 · HEAD-TO-HEAD · WINNER VS 2ND

FM Henrik Petersen drew with FM Karsten Schulz (Black).

WIN STREAKS · 3 top finishers

FM Henrik Petersen 4 wins (R1–R4)FM Karsten Schulz 4 wins (R1–R4)Felix Teichert 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1FMHenrik Petersen	*	½	—	—
2FMKarsten Schulz	½	*	—	1
3Felix Teichert	—	—	*	—
4Joerg Ball	—	0	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Petersen, HenrikFM	2268	GER	+25N	+7B	+8N	+10B	=2N	+4B	5.5	22.5	25.5	22.75	2386	+10.8
2	Schulz, KarstenFM	2120	GER	+38B	+5N	+9B	+23N	=1B	+12N	5.5	21.0	23.5	20.75	2372	+30.0
3	Teichert, Felix	2072	GER	+33B	+35N	+34B	−13N	+9B	+8B	5.0	16.5	19.0	15.50	2177	+15.8
4	Nguyen, Viet Anh	1896	GER	+60B	+24N	=6B	+17N	+13B	−1N	4.5	20.0	21.0	13.25	2187	+73.6
5	Ball, Joerg	1944	GER	+47N	−2B	+36N	+46B	=11N	+15B	4.5	17.5	19.5	12.00	2013	+14.8
6	Dodul, Arthur	1997	GER	+40N	+37B	=4N	=31B	=18N	+14B	4.5	17.0	19.5	14.00	2068	+20.8
7	Janoschka, Julien	1943	GER	+48B	−1N	+56B	+45N	=24B	+13N	4.5	16.0	17.5	10.50	2123	+37.2
8	Brau, Luca	2009	GER	+55N	+21B	−1B	+35N	+23B	−3N	4.0	19.5	21.0	10.50	2024	+9.6
9	May, Alexander	1952	GER	+39N	+32B	−2N	+54B	−3N	+28B	4.0	18.5	20.5	10.00	1869	-12.8
10	Torosyan, Bagrat	2074	GER	+16B	+27N	+30B	−1N	F	+26B	4.0	18.0	18.0	12.50	2125	+17.2
11	Bauer, Norbert	2034	GER	+56B	+19N	−23B	+27N	=5B	=18N	4.0	17.5	19.0	12.00	1987	-5.6
12	Kalousek, Zdenek	2149	CZE	−32N	+39B	+25N	+37B	+28N	−2B	4.0	16.5	19.0	11.00	1915	-23.2
13	Jandke, Manfred	2097	GER	+36N	=14B	+26N	+3B	−4N	−7B	3.5	20.5	23.0	12.25	1950	-15.8
14	Bochow, Sven	0	GER	+42B	=13N	−17B	+55N	+16B	−6N	3.5	17.5	19.0	9.25	1827	0.0
15	Rauhut, Frank, Dr.	1951	GER	+52B	−23N	+33B	=16N	+17B	−5N	3.5	17.0	19.0	9.75	1801	-19.8
16	Dodul, Alice	1719	GER	−10N	+53B	+29N	=15B	−14N	+37B	3.5	16.5	18.5	9.25	2050	+65.6
17	Stoewe, Erik	1756	GER	=31N	+61B	+14N	−4B	−15N	+51B	3.5	16.5	17.5	8.00	1728	-5.6
18	Gersemann, Karl	1990	GER	+46N	=26B	F	+30N	=6B	=11B	3.5	16.5	16.5	10.75	1977	+2.8
19	Tonke, Kai	1851	GER	+51N	−11B	−46N	+40B	=20N	+36B	3.5	14.5	16.5	8.75	1740	-14.2
20	Gueldenpfennig, Gavin	1720	GER	−24B	+42N	−27B	+50N	=19B	+34N	3.5	14.5	16.5	8.75	1827	+9.0
21	Sander, Tino	1788	GER	+22B	−8N	−45B	=41N	+55B	+33N	3.5	14.5	16.0	8.75	1779	+0.4
22	Bathmann, Severin	0	GER	−21N	=55B	+49N	−26B	+59N	+32B	3.5	12.5	13.5	6.25	1684	0.0
23	Daichendt, Felix	1796	GER	+50N	+15B	+11N	−2B	−8N	F	3.0	20.0	22.0	9.50	2028	+46.0
24	Sielaff, Michael	2074	GER	+20N	−4B	=32N	+51B	=7N	F	3.0	18.0	20.0	9.00	1823	-23.6
25	Meissner, Fabian	1757	GER	−1B	+52N	−12B	+48N	+27B	F	3.0	17.5	19.5	7.00	1931	+14.6
26	von Lipinski, Janek	1760	GER	+63B	=18N	−13B	+22N	=44B	−10N	3.0	17.0	17.0	6.50	1791	+1.0
27	Schwarz, Ronald	1918	GER	+53N	−10B	+20N	−11B	−25N	+47B	3.0	16.5	18.5	7.50	1749	-20.4
28	Mousavi, Seyedjavad	0	GER	+59B	−30N	+38B	+34N	−12B	−9N	3.0	16.0	17.0	6.00	1821	0.0
29	Jaeger, Marco	1956	GER	+41B	−34N	−16B	+56N	+45B	F	3.0	13.5	15.0	6.00	1690	-25.0
30	Sellhast, Paul	1761	GER	+62N	+28B	−10N	−18B	F	+45N	3.0	13.0	13.0	5.50	1232	-14.0
31	Reichmann, FelixCM	2191	GER	=17B	+45N	+44B	=6N	—	—	3.0	10.5	12.5	8.50	1985	-23.6
32	Majewski, Nico	1733	GER	+12B	−9N	=24B	−44N	+41B	−22N	2.5	17.0	19.5	8.00	1879	+32.4
33	Filter, Otto	1699	GER	−3N	+43B	−15N	=47B	+39N	−21B	2.5	17.0	19.0	6.00	1613	-27.2
34	Teusch, Lucas	1811	GER	+58N	+29B	−3N	−28B	=37N	−20B	2.5	17.0	18.5	5.75	1810	-2.8
35	Barsov, Mikhail	1859	GER	+43N	−3B	+40N	−8B	=36N	F	2.5	16.5	19.0	6.25	1783	-18.4
36	Nimptsch, Nikolas	1721	GER	−13B	+48N	−5B	+52N	=35B	−19N	2.5	16.0	18.0	5.25	1701	-4.4
37	Jende, Julian	1838	GER	+57B	−6N	+59B	−12N	=34B	−16N	2.5	16.0	17.0	3.75	1697	-38.8
38	Eckelt, Rufus Thadeus	1702	GER	−2N	+47B	−28N	=39B	+46N	F	2.5	15.5	17.5	5.25	1757	+7.2
39	Heuberger, Sandra	1503	GER	−9B	−12N	+42B	=38N	−33B	+55N	2.5	15.5	17.0	5.25	1605	+17.6
40	Steinkamp, Robert	1677	GER	−6B	+60N	−35B	−19N	=42B	+57N	2.5	14.5	15.5	3.75	1103	-26.4
41	Finck, Julius	1464	GER	−29N	−54B	+43N	=21B	−32N	+58B	2.5	13.5	15.0	5.75	1522	+4.8
42	Bischoff, Max	0	GER	−14N	−20B	−39N	+62B	=40N	+59B	2.5	13.0	13.5	2.75	1526	0.0
43	Reissner, Rick Avan	0	GER	−35B	−33N	−41B	+63N	+52B	=49N	2.5	11.5	11.5	3.00	1472	0.0
44	Stegmann, Jens	1774	GER	F	+49B	−31N	+32B	=26N	—	2.5	10.5	10.5	6.00	1908	+11.8
45	Stoewe, Olli	0	GER	+54N	−31B	+21N	−7B	−29N	−30B	2.0	17.0	19.0	5.50	1688	0.0
46	Rabus, Johann	1547	GER	−18B	+63N	+19B	−5N	−38B	−50N	2.0	16.0	16.0	3.50	1668	+16.4
47	Morczynski, Ryszard	1495	GER	−5B	−38N	+60B	=33N	=49B	−27N	2.0	14.5	15.5	3.25	1515	-0.2
48	Podousov, Andrii	0	GER	−7N	−36B	+58N	−25B	−57N	+62B	2.0	13.0	13.5	2.00	1007	0.0
49	Dworatzek, Klaus	1582	GER	F	−44N	−22B	+53B	=47N	=43B	2.0	12.5	12.5	4.25	1442	-7.4
50	Bartenstein, Rubens Rudolf	0	GER	−23B	F	−54N	−20B	+53N	+46B	2.0	12.5	12.5	4.00	1563	0.0
51	Bartenstein, Johann Richard	0	GER	−19B	F	+61N	−24N	+56B	−17N	2.0	12.5	12.5	2.50	1646	0.0
52	Lippert, Marc	1499	GER	−15N	−25B	+62N	−36B	−43N	+63B	2.0	12.0	12.0	0.50	992	-9.6
53	Nolte, Joerg	0	GER	−27B	−16N	+63B	−49N	−50B	+60N	2.0	11.5	11.5	1.00	940	0.0
54	Reppert, Claude	0	GER	−45B	+41N	+50B	−9N	—	—	2.0	8.5	10.5	4.50	1708	0.0
55	Heuberger, Holger	1567	GER	−8B	=22N	+57N	−14B	−21N	−39B	1.5	17.0	18.5	3.25	952	-35.6
56	Stuckart, Michael	1673	GER	−11N	+62B	−7N	−29B	−51N	=61B	1.5	14.5	15.0	1.00	1178	-8.6
57	FIDE 533037477	0	—	−37N	F	−55B	=61N	+48B	−40B	1.5	9.5	9.5	2.50	893	0.0
58	FIDE 533024499	0	—	−34B	−59N	−48B	=60N	+61B	−41N	1.5	9.0	10.0	1.50	809	0.0
59	Harbach, Peter	1552	GER	−28N	+58B	−37N	F	−22B	−42N	1.0	13.0	13.0	1.50	1038	-3.2
60	FIDE 533051259	0	—	−4N	−40B	−47N	=58B	=62N	−53B	1.0	12.5	13.0	1.00	889	0.0
61	FIDE 533048819	0	—	F	−17N	−51B	=57B	−58N	=56N	1.0	10.0	10.0	1.50	1522	0.0
62	Bathmann, Sanaa Maria	0	GER	−30B	−56N	−52B	−42N	=60B	−48N	0.5	11.0	12.0	0.50	844	0.0
63	FIDE 34696806	0	—	−26N	−46B	−53N	−43B	F	−52N	0.0	11.5	11.5	0.00	802	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Nguyen, Viet AnhGER
+73.6
4.5 pts · #8
2Dodul, AliceGER
+65.6
3.5 pts · #17
3Daichendt, FelixGER
+46.0
3.0 pts · #25

Top rating losers

1Jende, JulianGER
-38.8
2.5 pts · #35
2Heuberger, HolgerGER
-35.6
1.5 pts · #56
3Filter, OttoGER
-27.2
2.5 pts · #36

Biggest upsets

R1+416 Elo gap
Majewski, Nico1733 beat Kalousek, Zdenek2149
R3+304 Elo gap
Rabus, Johann1547 beat Tonke, Kai1851
R3+238 Elo gap
Daichendt, Felix1796 beat Bauer, Norbert2034