Oranienburger Chess Open 2025 Gruppe C

Open SwissStandard

58 players participated in this 5-round tournament, held from 13 Sept 2025 to 14 Sept 2025 in Oranienburg, Germany. Top 10 Elo average was 1634, and top seed was Lev Elkin (🇩🇪 GER, 1768).

Azat Hildebrand (🇩🇪 GER, 1504) won with 4.5/5, ahead of David Rogozhin (4.0) and Aurimas Milasevicius (4.0). Hildebrand won solo starting round 4.

The biggest upset came in round 2: Max Rauhut (1523) beat Lev Elkin (1768), a +245-point gap.

Location

🇩🇪Oranienburg, Germany

Dates

13 Sept 2025 → 14 Sept 2025

Time control

Standard: 30 Moves in 60 Min. / / 30 Min.

System

Swiss · 5 rounds

Top seed

🇩🇪Lev Elkin1768

Avg top 10

1,634

Participants

Federations · 1 represented

🇩🇪Germany×47

Top 3

🥇
Azat Hildebrand
🇩🇪GER·1504
4.5pts·1955perf+84.4
🥈
David Rogozhin
🇩🇪GER·1732
4.0pts·1704perf-5.2
🥉
Aurimas Milasevicius
🇩🇪GER·1533
4.0pts·1714perf+28.8

How it unfolded

Top 6 · 5 rounds

Azat Hildebrand led from R4; +0.5-point edge over the runner-up.

Co-leaders

Hildebrand4.5Rogozhin4Nguyen4Milasevicius4Sonsalla4Heidrich3.5

R4–R5 · LEAD HELD

Azat Hildebrand held the sole lead from R4 through R5 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Azat Hildebrand drew with David Rogozhin (White).

R1–R4 · WIN STREAK

Azat Hildebrand won 4 in a row (R1–R4).

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Azat Hildebrand	*	½	—	—
2David Rogozhin	½	*	—	½
3Lucas Bao Vinh Nguyen	—	—	*	—
4Aurimas Milasevicius	—	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Hildebrand, Azat	1504	GER	+45B	+18N	+24B	+7N	=2B	4.5	13.0	14.5	12.50	1955	+84.4
2	Rogozhin, David	1732	GER	+37B	+25N	=3B	+8N	=1N	4.0	14.5	16.5	12.25	1704	-5.2
3	Milasevicius, Aurimas	1533	GER	+26B	+46N	=2N	=6B	+17N	4.0	13.0	14.5	10.75	1714	+28.8
4	Nguyen, Lucas Bao Vinh	1439	GER	+55N	+20B	=6N	+30N	=11B	4.0	12.5	13.0	9.50	1778	+71.6
5	Sonsalla, Stefan	1619	GER	+51B	=34N	=16B	+14N	+19B	4.0	12.0	13.0	10.25	1694	+3.6
6	Chupikov, Oleksii junior	1576	GER	+36B	+52N	=4B	=3N	=15B	3.5	13.5	14.5	8.75	1605	+4.0
7	Gakhov, Gabriel	1542	GER	+49N	+35B	+17N	−1B	=9N	3.5	13.0	14.5	8.25	1498	-7.2
8	Rauhut, Max	1523	GER	+54N	+21N	=30B	−2B	+27N	3.5	12.0	13.0	7.75	1690	+25.6
9	Briese, Sophie	1529	GER	−14B	+58N	+43B	+22N	=7B	3.5	12.0	12.5	7.25	1788	+27.2
10	Winter, Otto Friedemann	0	GER	+12N	=19N	−?B	+29B	+31N	3.5	11.5	11.5	10.00	1534	0.0
11	Pozzato, Malte	1620	GER	+44N	−17B	+35N	+34B	=4N	3.5	11.0	13.0	8.00	1456	-26.0
12	FIDE 34682341	0	—	−10B	=45N	+26B	+46N	+24B	3.5	10.0	11.5	7.25	1587	0.0
13	Moriana Casado, Mitxel	0	GER	−25B	+36N	+52B	=18N	+28N	3.5	10.0	11.0	7.00	1532	0.0
14	Heidrich, Felix	0	GER	+9N	+?B	=?N	−5B	+33N	3.5	10.0	10.0	6.00	1585	0.0
15	Wisniewski, Alexander	0	GER	=?N	+27B	+21N	=?B	=6N	3.5	9.0	9.0	7.25	1662	0.0
16	Nguyen, Max Minh	0	GER	=32N	+?B	=5N	+?B	=?N	3.5	6.5	6.5	3.25	1637	0.0
17	Winkler, Theo	1472	GER	+56B	+11N	−7B	+23N	−3B	3.0	14.0	14.5	7.00	1573	+24.0
18	Klemmer, Boris	1641	GER	+40N	−1B	=29N	=13B	+34N	3.0	12.5	14.5	7.00	1463	-27.2
19	Wesner, Andy	1532	GER	+50N	=10B	=34N	+20B	−5N	3.0	12.5	14.0	7.25	1554	+1.8
20	Harbach, Peter	1573	GER	+43B	−4N	+42B	−19N	+40B	3.0	11.0	13.0	6.00	685	-24.8
21	Elkin, Lev	1768	GER	+39N	−8B	−15B	+51N	+42B	3.0	11.0	12.0	5.00	723	-32.0
22	Chupikov, Oleksii	1639	GER	F	+38B	+39N	−9B	+35N	3.0	9.5	9.5	6.00	729	-26.4
23	Mlynarska, Nala Sarah	1599	GER	−35N	+49B	+53N	−17B	+37N	3.0	8.5	9.5	4.50	660	-27.2
24	Winkler, Anni	1566	GER	+38N	+29B	−1N	=31B	−12N	2.5	13.0	15.0	5.75	1452	-18.8
25	Georgieva, Teodora	1482	GER	+13N	−2B	=48N	−27B	+41B	2.5	12.0	13.5	6.25	932	-7.6
26	Burkhardt, Marcel	0	GER	−3N	=28B	−12N	+55B	+47N	2.5	11.5	12.0	3.25	1303	0.0
27	Gottschling, Lisa	0	GER	=?B	−15N	+47B	+25N	−8B	2.5	11.0	11.0	4.00	1559	0.0
28	Zatenko, Yevhenii	1458	GER	−34B	=26N	+45B	+32N	−13B	2.5	10.5	12.0	5.25	669	-19.2
29	Steppat, Tristan	1418	GER	+57B	−24N	=18B	−10N	+48B	2.5	10.5	11.0	3.50	1410	-0.8
30	Kramer, Tigran	1569	GER	+53N	+33B	=8N	−4B	—	2.5	10.0	11.0	5.25	1475	-16.0
31	Frey, Jarmo	1436	GER	−46B	+50N	+41B	=24N	−10B	2.5	9.5	11.0	4.75	1567	+7.2
32	Rozek, Andre	0	GER	=16B	−?N	+36B	−28B	+45N	2.5	9.5	9.5	5.25	766	0.0
33	Tschirswitz, Wolfgang	1463	GER	+47B	−30N	=46B	+48N	−14B	2.5	9.0	10.5	3.75	770	-14.0
34	Kholodnyi, Oleksandr	1469	GER	+28N	=5B	=19B	−11N	−18B	2.0	13.5	16.0	6.00	1502	+7.6
35	Rosenhagen, Felix	0	GER	+23B	−7N	−11B	+52N	−22B	2.0	13.0	14.0	4.00	1503	0.0
36	Demirdizen, Cem	0	GER	−6N	−13B	−32N	+54B	+53N	2.0	10.5	11.5	2.00	776	0.0
37	Rogozhin, Georg	0	GER	−2N	+54B	−?N	+38B	−23B	2.0	10.0	10.0	3.00	825	0.0
38	Druschel, Ben	0	GER	−24B	−22N	+50B	−37N	+58B	2.0	9.0	9.5	2.00	809	0.0
39	Krasnyi, Timofei	0	GER	−21B	+56N	−22B	−41N	+51B	2.0	9.0	9.5	1.50	909	0.0
40	Gehler, Maxim	0	GER	−18B	=47N	=?N	+?B	−20N	2.0	7.5	7.5	0.75	1349	0.0
41	Bartenev, Leonid	0	GER	−?N	+?B	−31N	+39B	−25N	2.0	7.0	7.0	2.00	695	0.0
42	Freischmidt, Lyo Daniel	0	GER	+?N	−?B	−20N	+53B	−21N	2.0	7.0	7.0	1.00	836	0.0
43	Polzin, Jonathan	0	GER	−20N	+55B	−9N	+?B	−?N	2.0	7.0	7.0	0.50	1383	0.0
44	Bonhuis, Caspar	0	GER	−11B	F	F	+57N	+?N	2.0	4.0	4.0	0.50	820	0.0
45	FIDE 533052913	0	—	−1N	=12B	−28N	+58N	−32B	1.5	13.0	13.5	2.25	681	0.0
46	Schieblich, Jonas	0	GER	+31N	−3B	=33N	−12B	−?N	1.5	12.5	12.5	3.75	1434	0.0
47	FIDE 533049521	0	—	−33N	=40B	−27N	+49B	−26B	1.5	9.5	11.0	2.50	663	0.0
48	FIDE 533055432	0	—	−52B	+51N	=25B	−33B	−29N	1.5	8.5	9.5	2.25	1136	0.0
49	FIDE 533055130	0	—	−7B	−23N	=57B	−47N	+56B	1.5	8.5	9.0	0.75	769	0.0
50	FIDE 533055238	0	—	−19B	−31B	−38N	=56N	+57B	1.5	8.0	8.5	0.75	683	0.0
51	Tilenbaev, Akyl	0	GER	−5N	−48B	+54N	−21B	−39N	1.0	10.5	11.5	1.00	894	0.0
52	Frey, Torsten	1468	GER	+48N	−6B	−13N	−35B	F	1.0	10.5	10.5	1.50	776	-14.0
53	George, Taro	0	GER	−30B	+57N	−23B	−42N	−36B	1.0	9.5	10.0	0.50	784	0.0
54	FIDE 533012121	0	—	−8B	−37N	−51B	−36N	+55N	1.0	8.5	9.0	0.50	723	0.0
55	FIDE 533042179	0	—	−4B	−43N	=58B	−26N	−54B	0.5	9.5	10.0	0.25	638	0.0
56	FIDE 533055335	0	—	−17N	−39B	F	=50B	−49N	0.5	8.0	8.0	0.75	660	0.0
57	FIDE 533048266	0	—	−29N	−53B	=49N	−44B	−50N	0.5	7.5	8.5	0.75	617	0.0
58	FIDE 533051801	0	—	−?N	−9B	=55N	−45B	−38N	0.5	7.5	7.5	0.25	738	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Hildebrand, AzatGER
+84.4
4.5 pts · #2
2Nguyen, Lucas Bao VinhGER
+71.6
4.0 pts · #5
3Milasevicius, AurimasGER
+28.8
4.0 pts · #10

Top rating losers

1Elkin, LevGER
-32.0
3.0 pts · #40
2Mlynarska, Nala SarahGER
-27.2
3.0 pts · #49
3Klemmer, BorisGER
-27.2
3.0 pts · #23

Biggest upsets

R2+245 Elo gap
Rauhut, Max1523 beat Elkin, Lev1768
R2+148 Elo gap
Winkler, Theo1472 beat Pozzato, Malte1620
R2+137 Elo gap
Hildebrand, Azat1504 beat Klemmer, Boris1641