10. Mansfelder Schloss-Open

Open SwissStandard

65 players participated in this 7-round tournament, held from 28 Jun 2025 to 01 Jul 2025 in Mansfeld, Germany. 2 titled players from 2 federations. Top 10 Elo average was 2027, and top seed was Luca Englert (🇩🇪 GER, FM, 2333).

Johannes Julius Petzold (🇩🇪 GER, 1986) won with 6.0/7, ahead of Luca Englert (6.0) and Karl Gersemann (5.5). Petzold shared the lead from round 6, winning on tie-break.

The biggest upset came in round 6: Johannes Julius Petzold (1986) beat Luca Englert (FM, 2333), a +347-point gap.

Location

🇩🇪Mansfeld, Germany

Dates

28 Jun 2025 → 01 Jul 2025

Time control

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

System

Swiss · 7 rounds

Top seed

🇩🇪FMLuca Englert2333

Avg top 10

2,027

Participants

Titled players · 2

FM×2

Federations · 2 represented

🇩🇪Germany×61

🇳🇱Netherlands×1

Top 3

🥇
Johannes Julius Petzold
🇩🇪GER·1986
6.0pts·2213perf+73.6
🥈
FMLuca Englert
🇩🇪GER·2333
6.0pts·2273perf-5.8
🥉
Karl Gersemann
🇩🇪GER·1982
5.5pts·1987perf+7.6

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 2 players tied at 6.0/7, decided on Buchholz.

Co-leaders

Petzold6Englert6Gersemann5.5Noennig5Allmendinger5Aepfler5

R7 · TIEBREAK CLUSTER

2 players finish on 6.0/7. Petzold takes the title on Buchholz Cut1 (28.5).

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Johannes Julius Petzold beat FM Luca Englert (Black).

WIN STREAKS · 3 top finishers

Johannes Julius Petzold 3+3 wins (R1–R3, R5–R7)FM Luca Englert 5 wins (R1–R5)Karl Gersemann 3 wins (R5–R7)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Johannes Julius Petzold	*	1	—	1
2FMLuca Englert	0	*	—	1
3Karl Gersemann	—	—	*	—
4Jakob Noennig	0	0	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Petzold, Johannes Julius	1986	GER	+54N	+13B	+29N	−5B	+10N	+2N	+4B	6.0	28.5	30.5	25.50	2213	+73.6
2	Englert, LucaFM	2333	GER	+39N	+27B	+17N	+4B	+30N	−1B	+6N	6.0	27.5	30.5	24.50	2273	-5.8
3	Gersemann, Karl	1982	GER	+41N	+23B	=5N	−7B	+22N	+18B	+12N	5.5	26.5	29.5	22.00	1987	+7.6
4	Noennig, Jakob	2096	GER	+40N	+10B	+6N	−2N	+8B	+17B	−1N	5.0	30.5	33.5	21.50	2060	-2.8
5	Aepfler, ChristianFM	2096	GER	+42B	+12N	=3B	+1N	=7N	−6B	+17N	5.0	30.0	33.0	22.75	1989	-12.8
6	Pflug, Anton	1828	GER	+34B	+25N	−4B	+14N	+15B	+5N	−2B	5.0	29.0	32.5	21.50	2058	+81.6
7	Schlange, Jonathan	1668	GER	+60N	=30B	+19N	+3N	=5B	=20B	=9N	5.0	27.0	28.5	19.75	2094	+123.6
8	Allmendinger, Anton Johannes	1828	GER	+45N	−29B	+40N	+13B	−4N	+39B	+20N	5.0	23.0	26.0	17.50	1917	+34.4
9	Neuendorf, Max	1968	GER	+51B	+44N	=53B	=11N	=18B	+21N	=7B	5.0	23.0	25.5	17.50	1924	-4.8
10	Roessling, Laura Marie	1760	GER	+36B	−4N	+48B	+28N	−1B	+24N	=15B	4.5	27.0	29.5	16.25	1865	+24.0
11	Kuhlmann, Nils Magnus	1835	GER	=32N	+47B	+22N	=9B	−17N	+29B	=18N	4.5	24.0	26.5	16.25	1836	+5.6
12	Zemmrich, Filip	1749	GER	+57N	−5B	+54N	+33B	=19N	+30B	−3B	4.5	23.5	25.5	13.00	1918	+52.0
13	Noennig, Lotte	1735	GER	+50B	−1N	+34B	−8N	=40B	+47N	+46B	4.5	22.5	25.0	12.50	1727	-2.8
14	Scharff, Oskar	1704	GER	+62N	−17B	+45N	−6B	+41N	=19B	+37N	4.5	22.5	23.5	12.50	1755	+13.2
15	Sedlmayr, David	2006	GER	F	+52B	+46N	+26B	−6N	+23B	=10N	4.5	22.5	22.5	15.25	1878	-12.6
16	Herzog, Mats	0	GER	=35N	−26B	+47N	−19B	+32N	+33B	+31N	4.5	22.0	24.5	14.75	1752	0.0
17	Shevchenko, Igor	1882	GER	+48B	+14N	−2B	+25N	+11B	−4N	−5B	4.0	29.0	31.5	15.50	1944	+20.8
18	Steudner, Reinhold	1826	GER	+63N	=22B	=20N	+29B	=9N	−3N	=11B	4.0	26.5	27.5	13.25	1856	+7.4
19	Sniegowski, Richard	1887	GER	=46B	+38N	−7B	+16N	=12B	=14N	=25B	4.0	26.0	28.5	15.75	1636	-72.0
20	Schubert, Hartmut	2002	GER	+24B	=61N	=18B	+44N	=21B	=7N	−8B	4.0	25.0	26.5	14.25	1808	-62.0
21	Witter, Jannes	1892	GER	=47N	+32B	=26N	+23B	=20N	−9B	=22N	4.0	24.5	27.0	14.75	1794	-14.6
22	Gottschling, Lukas	1675	GER	+65B	=18N	−11B	+27N	−3B	+50N	=21B	4.0	24.5	24.5	10.50	1787	+26.8
23	Lasschuit, Rene	1704	NED	+58B	−3N	+38B	−21N	+34B	−15N	+40B	4.0	24.0	26.0	12.00	1743	+4.6
24	Heidenreich, Piero	1634	GER	−20N	+57B	+27N	=31B	+35N	−10B	=26N	4.0	23.5	25.5	13.25	1807	+51.6
25	Pham, Jacky	1645	GER	+64N	−6B	+37N	−17B	+43N	=31B	=19N	4.0	23.0	23.0	10.25	1657	+2.0
26	Zander, Ben Erik	1745	GER	=55B	+16N	=21B	−15N	+42B	=46N	=24B	4.0	22.5	24.5	13.75	1744	-1.2
27	Hoffmann, Svenja	1761	GER	+56N	−2N	−24B	−22B	+57N	+43B	+39N	4.0	22.0	24.0	10.00	1589	-40.4
28	Richter, Christoph	0	GER	−33N	+63B	+39N	−10B	−29N	+45B	+48N	4.0	20.0	21.0	9.50	1656	0.0
29	Ziem, Ole	1670	GER	+59B	+8N	−1B	−18N	+28B	−11N	=36B	3.5	27.0	29.0	12.75	1676	+0.4
30	Ritter, Uwe	1908	GER	+49B	=7N	+61B	+53N	−2B	−12N	F	3.5	22.0	22.0	9.00	1863	-6.6
31	Reckner, Jens	1804	GER	−38B	+55N	+42B	=24N	=46B	=25N	−16B	3.5	21.5	23.5	10.25	1593	-26.4
32	Zemmrich, Andi	1543	GER	=11B	−21N	−49B	+51N	−16B	+58N	+47B	3.5	20.5	22.5	9.25	1701	+37.6
33	Pflug, Johan	1662	GER	+28B	−53N	+62B	−12N	=50B	−16N	+49B	3.5	20.5	21.5	8.75	1583	-12.4
34	Sniegowski, Victoria	1524	GER	−6N	+64B	−13N	+60B	−23N	+56B	=35N	3.5	20.5	20.5	5.25	1439	-13.2
35	Kalliwoda, Enrico	1770	GER	=16B	−46N	+55B	+49N	−24B	=40N	=34B	3.5	20.0	22.0	10.00	1497	-35.8
36	Nozdrin, Konstantin	0	GER	−10N	−39B	−43N	+52B	+54N	+41B	=29N	3.5	19.5	21.5	9.25	1661	0.0
37	Ruempler, Darius	0	GER	−61B	+51N	−25B	=48N	+49B	+42N	−14B	3.5	19.0	20.5	9.25	1647	0.0
38	Seidemann, Erik	1498	GER	+31N	−19B	−23N	−39B	=60N	+54B	+51B	3.5	19.0	20.5	8.75	1718	+63.6
39	Schulze, Jonas	1658	GER	−2B	+36N	−28B	+38N	+62B	−8N	−27B	3.0	26.0	27.0	8.00	1594	-16.8
40	Ehrath, Hendrik	1554	GER	−4B	+50N	−8B	+56N	=13N	=35B	−23N	3.0	24.5	26.5	8.50	1560	-1.2
41	Burghardt, Jonathan	1584	GER	−3B	+59N	−44B	+64N	−14B	−36N	+50B	3.0	21.0	21.0	4.50	1002	-29.6
42	Roessling, Johannes	1637	GER	−5N	+56B	−31N	+57B	−26N	−37B	+62N	3.0	20.0	21.0	5.00	1061	-28.4
43	Koehler, Theobald	0	GER	−44B	−48N	+36B	+55N	−25B	−27N	+56N	3.0	19.0	21.0	7.50	882	0.0
44	Gueldenpfennig, Gavin	1720	GER	+43N	−9B	+41N	−20B	F	F	+57N	3.0	17.0	17.0	8.00	1726	-0.6
45	Pohl, Cosmo Hermann	1593	GER	−8B	+65N	−14B	−62N	+64B	−28N	+59B	3.0	16.5	16.5	2.00	967	-22.0
46	Gruner, Cornelius	1553	GER	=19N	+35B	−15B	F	=31N	=26B	−13N	2.5	24.0	25.5	9.25	1760	+55.6
47	Wagner, Tino	1575	GER	=21B	−11N	−16B	+58N	+48B	−13B	−32N	2.5	23.5	25.5	6.50	1573	-1.8
48	Noennig, Nina	1600	GER	−17N	+43B	−10N	=37B	−47N	+60B	−28B	2.5	21.5	23.0	6.25	939	-39.6
49	Aronau, Michael	1580	GER	−30N	=60B	+32N	−35B	−37N	+52B	−33N	2.5	20.0	21.5	6.75	1528	-12.8
50	Aronau, Aliaksandr	0	GER	−13N	−40B	+63N	+54B	=33N	−22B	−41N	2.5	20.0	21.0	4.75	1521	0.0
51	Roessling, Ivo	1625	GER	−9N	−37B	=60N	−32B	+55N	+62B	−38N	2.5	19.0	20.0	3.75	870	-56.0
52	FIDE 34688803	0	—	−53B	−15N	=58B	−36N	+59B	−49N	+60B	2.5	17.0	18.5	4.50	993	0.0
53	Eckert, David	1794	GER	+52N	+33B	=9N	−30B	—	—	—	2.5	12.0	14.5	8.50	1846	+8.0
54	Witthuhn, Kerstin	1632	GER	−1B	+58N	−12B	−50N	−36B	−38N	+64B	2.0	22.0	22.0	2.00	945	-22.6
55	Kasten, Noah Alexander	0	GER	=26N	−31B	−35N	−43B	−51B	+63N	=58B	2.0	18.5	19.5	4.00	1542	0.0
56	Schmidt, Hannes Jakob	0	GER	−27B	−42N	+59B	−40B	+65N	−34N	−43B	2.0	18.5	18.5	2.00	819	0.0
57	Sniegowski, Amalia	0	GER	−12B	−24N	+65B	−42N	−27B	+64N	−44B	2.0	18.5	18.5	0.00	900	-82.0
58	Hahn, Fabio	0	GER	−23N	−54B	=52N	−47B	+63N	−32B	=55N	2.0	16.5	17.5	3.25	1353	0.0
59	Michalak, Albert	0	GER	−29N	−41B	−56N	+63B	−52N	+65B	−45N	2.0	15.0	15.0	1.00	1397	0.0
60	Pott, Harald	0	GER	−7B	=49N	=51B	−34N	=38B	−48N	−52N	1.5	19.5	22.0	4.25	1390	0.0
61	Sen, Nazim Emrah	1738	GER	+37N	=20B	−30N	F	—	—	—	1.5	11.0	13.5	5.50	1762	+1.6
62	Kuehn, Milan	0	GER	−14B	F	−33N	+45B	−39N	−51N	−42B	1.0	19.5	19.5	3.00	1373	0.0
63	Knappe, Stefan	1511	GER	−18B	−28N	−50B	−59N	−58B	−55B	+65N	1.0	16.5	16.5	0.00	1026	-2.8
64	FIDE 34662901	0	—	−25B	−34N	F	−41B	−45N	−57B	−54N	0.0	17.5	17.5	0.00	796	0.0
65	FIDE 533027072	0	—	−22N	−45B	−57N	F	−56B	−59N	−63B	0.0	14.0	14.0	0.00	793	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Schlange, JonathanGER
+123.6
5.0 pts · #13
2Pflug, AntonGER
+81.6
5.0 pts · #7
3Petzold, Johannes JuliusGER
+73.6
6.0 pts · #1

Top rating losers

1Sniegowski, AmaliaGER
-82.0
2.0 pts · #63
2Sniegowski, RichardGER
-72.0
4.0 pts · #23
3Schubert, HartmutGER
-62.0
4.0 pts · #14

Biggest upsets

R6+347 Elo gap
Petzold, Johannes Julius1986 beat FMEnglert, Luca2333
R4+314 Elo gap
Schlange, Jonathan1668 beat Gersemann, Karl1982
R1+306 Elo gap
Seidemann, Erik1498 beat Reckner, Jens1804