ZuerichSee Amateur General Open 2025

Open SwissStandard

66 players participated in this 6-round tournament, held from 31 Jul 2025 to 03 Aug 2025 in Pfaeffikon SZ, Switzerland. 3 titled players from 8 federations. Top 10 Elo average was 2133, and top seed was Alexander Cherniaev (🇬🇧 ENG, GM, 2289).

Alexander Cherniaev (🇬🇧 ENG, GM, 2289) won with 5.0/6, ahead of Flavio Rotunno (5.0) and Romain Gemelli (5.0). Cherniaev shared the lead from round 1, winning on tie-break.

The biggest upset came in round 1: Ryan Dineen (1588) beat Kailash Madhavan (1911), a +323-point gap.

Location

🇨🇭Pfaeffikon SZ, Switzerland

Dates

31 Jul 2025 → 03 Aug 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇬🇧GMAlexander Cherniaev2289

Avg top 10

2,133

Participants

Titled players · 3

GM×1

IM×1

FM×1

Federations · 8 represented

🇨🇭Switzerland×41

🇩🇪Germany×7

🇺🇦Ukraine×4

🇬🇧England×2

🇮🇹Italy×2

🇦🇹Austria×2

🇱🇹Lithuania×1

🇫🇷France×1

Top 3

🥇
GMAlexander Cherniaev
🇬🇧ENG·2289
5.0pts·2333perf+3.5
🥈
Flavio Rotunno
🇨🇭SUI·2133
5.0pts·2280perf+43.6
🥉
Romain Gemelli
🇨🇭SUI·2201
5.0pts·2219perf+3.6

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 5 players tied at 5.0/6, decided on Buchholz.

Co-leaders

Mikavica5Gemelli5Cherniaev5Rotunno5Zujev5Deuber4.5

R6 · TIEBREAK CLUSTER

5 players finish on 5.0/6. Cherniaev takes the title on Buchholz Cut1 (21.5).

WIN STREAKS · 3 top finishers

Mirko Mikavica 3 wins (R4–R6)Romain Gemelli 3 wins (R4–R6)GM Alexander Cherniaev 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Mirko Mikavica	*	—	—	—
2Romain Gemelli	—	*	—	—
3GMAlexander Cherniaev	—	—	*	½
4Flavio Rotunno	—	—	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Cherniaev, AlexanderGM	2289	ENG	+55B	+23N	+12B	+8N	=2B	=4N	5.0	21.5	23.5	18.50	2333	+3.5
2	Rotunno, Flavio	2133	SUI	+39N	+19B	+16N	=7B	=1N	+9B	5.0	20.0	22.5	18.00	2280	+43.6
3	Gemelli,Romain	2201	SUI	+26N	+15B	−9N	+31N	+16B	+7B	5.0	18.5	21.5	17.50	2219	+3.6
4	Zujev, OlegFM	2194	LTU	+33B	=22N	+21B	+17N	+27B	=1B	5.0	18.5	21.5	17.25	2292	+15.4
5	Mikavica, Mirko	2066	SRB	=56B	+66N	=11N	+29B	+13N	+27B	5.0	15.5	15.5	12.75	2194	+18.0
6	Deuber, Roman	2005	SUI	+57N	+36B	−8N	=26B	+39N	+20B	4.5	16.0	17.5	12.00	2055	+8.8
7	Drechsler, Christoph	2078	SUI	+30B	+18N	+14B	=2N	=10B	−3N	4.0	21.5	24.5	15.00	2130	+10.0
8	Malli, Suvirr	2104	SUI	+34B	+25N	+6B	−1B	−11N	+17N	4.0	20.5	23.5	14.50	2124	+9.2
9	Gontsul, Artem	2010	UKR	+49B	+52N	+3B	−10N	+21B	−2N	4.0	19.5	21.5	12.50	2119	+18.4
10	Reinhardt, Bernd	2096	GER	F	+24N	+22B	+9B	=7N	=11B	4.0	19.0	19.0	15.00	2214	+13.6
11	Tchenash, Alexej	1974	UKR	F	+43N	=5B	+30N	+8B	=10N	4.0	18.5	18.5	14.00	2179	+27.0
12	Borsos, BogdanIM	2071	UKR	+37N	+29B	−1N	=18B	=26N	+31B	4.0	17.5	20.5	12.25	2026	-2.4
13	Madhavan, Kailash	1911	SUI	−28B	+54N	+34B	+35N	−5B	+32N	4.0	17.0	19.0	11.00	1881	-4.8
14	Veverka, Vladimir	1993	CZE	+40N	+51B	−7N	=39B	=18N	+29B	4.0	15.5	17.5	10.50	1964	-6.4
15	Kulikov, Mikhail L	1907	RUS	+61N	−3N	−30B	+47B	+56N	+26B	4.0	14.5	15.5	7.50	1910	+1.4
16	Greussing, Stefan	2001	AUT	+35B	+32N	−2B	+33N	−3N	=25B	3.5	19.5	22.5	10.75	1972	-2.6
17	Boschetti, Claudio	2095	SUI	+50N	+31B	=20N	−4B	+19N	−8B	3.5	19.0	21.0	10.25	2025	-8.4
18	Lai, Cyrus Ho-yeung	1850	HKG	+64N	−7B	+40N	=12N	=14B	=21N	3.5	18.0	18.5	8.75	1943	+17.0
19	Delmonico, Nils	1902	SUI	+42B	−2N	+37B	=28N	−17B	+33N	3.5	17.5	20.0	10.00	1878	-1.4
20	Wilk, Wolf-Christian	1974	SUI	+54B	+28N	=17B	−27N	+22B	−6N	3.5	17.5	19.5	10.25	1934	-2.0
21	Selinga, Jan	1981	SUI	+47N	+45B	−4N	+41B	−9N	=18B	3.5	17.5	19.5	8.75	1911	-8.0
22	Rossier, Gilles	1897	SUI	+62N	=4B	−10N	+51B	−20N	+39B	3.5	17.0	18.0	8.00	1957	+10.6
23	Malli, Shiivesh Sunil	1969	SUI	+44N	−1B	−39N	+40B	=28B	+52N	3.5	15.5	17.5	8.50	1853	-14.6
24	Matsuo, Tom	1912	FRA	F	−10B	+50N	=32N	+34B	+28N	3.5	15.0	15.0	9.50	1949	+6.0
25	Cavoli, Stefano	1872	ITA	+48N	−8B	−41N	+61B	+49N	=16N	3.5	14.0	15.0	6.75	1844	-2.2
26	Lupei, Denis	1784	GER	−3B	+44N	+63B	=6N	=12B	−15N	3.0	20.0	21.0	7.75	1873	+24.4
27	Zinnai, Graziano Matteo	2060	ITA	+41N	+38B	F	+20B	−4N	−5N	3.0	19.0	19.0	9.00	2037	-1.2
28	Dineen, Ryan	1588	IRL	+13N	−20B	+36N	=19B	=23N	−24B	3.0	18.0	21.0	10.50	1915	+88.4
29	Richter, Johanna	1851	GER	+53B	−12N	+49B	−5N	+43B	−14N	3.0	17.5	19.5	6.50	1847	-0.4
30	Zeqiri, Mustafa	1756	SUI	−7N	+48B	+15N	−11B	−31N	+49B	3.0	17.0	19.0	8.00	1854	+28.8
31	Hesse, Raphael	1876	SUI	+58B	−17N	+56N	−3B	+30B	−12N	3.0	17.0	18.5	6.00	1909	+4.4
32	Smith, Alister W	1800	ENG	+59N	−16B	=45N	=24B	+41N	−13B	3.0	16.0	17.5	7.00	1778	-1.6
33	Jansen, Bert	1771	SUI	−4N	+61B	+47N	−16B	+48N	−19B	3.0	16.0	17.0	5.00	1810	+8.0
34	Fehr, Pascal	1758	SUI	−8N	+62B	−13N	+58B	−24N	+48B	3.0	15.0	16.0	4.50	1775	+1.8
35	Niederberger, Lenny	1714	SUI	−16N	+59B	+38N	−13B	−52N	+50B	3.0	14.5	16.0	6.50	1792	+26.8
36	Di Meo, Quentin	1823	SUI	+60B	−6N	−28B	=42N	=55B	+51N	3.0	14.0	15.5	5.75	1700	-17.0
37	Stepanians, Markus	1754	SUI	−12B	+53N	−19N	−48B	+61N	+47B	3.0	13.5	14.5	5.00	1718	-6.6
38	Zamora, Ricardo	1844	SUI	+63B	−27N	−35B	−43N	+42B	+58N	3.0	12.5	13.5	5.00	1677	-23.8
39	Gwerder, Simon	1761	SUI	−2B	+42N	+23B	=14N	−6B	−22N	2.5	20.5	23.0	8.00	1873	+28.0
40	Aeberhard, Dennis	1700	AUT	−14B	+60N	−18B	−23N	=44B	+62N	2.5	15.0	16.0	3.75	1684	-8.8
41	Kink, Theo	1749	GER	−27B	+64N	+25B	−21N	−32B	=55N	2.5	15.0	15.5	5.00	1776	+6.4
42	Heidtkamp, Anna	1581	GER	−19N	−39B	+59N	=36B	−38N	+57B	2.5	13.5	15.0	4.50	1687	+27.6
43	Saxer, Bruno	1674	SUI	F	−11B	=57N	+38B	−29N	+56B	2.5	13.0	13.0	5.25	1828	+19.6
44	Fuster, Jan	1610	SUI	−23B	−26B	=65N	=50B	=40N	+59N	2.5	12.5	13.0	4.00	1621	-1.2
45	Steiner, Remo	1690	SUI	+66N	−21N	=32B	+52B	F	F	2.5	8.5	8.5	3.50	1993	+30.6
46	Ponomarov, Sviatoslav	0	SUI	−51N	−47B	−48N	=64B	+65N	+61B	2.5	7.5	8.0	1.75	1529	0.0
47	Froehling, Juerg	1638	SUI	−21B	+46N	−33B	−15N	+63B	−37N	2.0	16.0	17.0	3.50	1534	-13.6
48	Luisier, Jurij	1562	SUI	−25B	−30N	+46B	+37N	−33B	−34N	2.0	15.5	18.0	5.50	1542	-4.8
49	Mogilevsky, Taras	1726	UKR	−9N	+65B	−29N	+53B	−25B	−30N	2.0	15.5	16.0	2.50	1622	-32.8
50	Bratosin, Vicentiu	1756	SUI	−17B	=58N	−24B	=44N	+53B	−35N	2.0	14.5	16.0	4.00	1617	-47.2
51	Steiner, Mario	1794	SUI	+46B	−14N	F	−22N	+62B	−36B	2.0	14.0	14.0	3.50	1630	-16.6
52	Mueller, Torsten	1827	GER	+65N	−9B	F	−45N	+35B	−23B	2.0	13.5	13.5	3.50	1693	-32.8
53	Nturibi Mutugi	1549	KEN	−29N	−37B	+54B	−49N	−50N	+64B	2.0	12.0	12.5	2.50	1575	+4.8
54	Amstalden, Julian	1616	SUI	−20N	−13B	−53N	+65B	−58N	+63B	2.0	12.0	12.5	1.50	1528	-32.8
55	Paholok, Igor	1790	SUI	−1N	F	F	+57B	=36N	=41B	2.0	12.0	12.0	4.25	1870	+6.4
56	Gunzinger, Severin	1749	SUI	=5N	F	−31B	+63N	−15B	−43N	1.5	15.5	15.5	3.50	1647	-27.6
57	Stalder, Daniel	1723	SUI	−6B	−63N	=43B	−55N	+60B	−42N	1.5	13.0	14.0	2.75	1466	-39.8
58	Niklaus, Herbert	1580	SUI	−31N	=50B	F	−34N	+54B	−38B	1.5	13.0	13.0	3.00	1621	+7.2
59	Roethlin, Lara	1411	SUI	−32B	−35N	−42B	=60N	+64N	−44B	1.5	12.5	13.0	1.25	1413	-4.0
60	Janutin, Jael Jana	1442	SUI	−36N	−40B	−62N	=59B	−57N	+65B	1.5	9.5	10.0	1.25	1421	-10.8
61	Schuler, Agatha	1584	SUI	−15B	−33N	+64B	−25N	−37B	−46N	1.0	16.0	16.5	0.50	1520	-8.8
62	Minacci, Matteo	1580	SUI	−22B	−34N	+60B	F	−51N	−40B	1.0	12.5	12.5	1.50	1478	-13.2
63	Jenny, Karin	1458	SUI	−38N	+57B	−26N	−56B	−47N	−54N	1.0	11.5	13.0	1.50	1452	-4.8
64	Hoffman, Jeffrey	1494	SUI	−18B	−41B	−61N	=46N	−59B	−53N	0.5	12.0	13.0	1.25	828	-68.4
65	Tuor, Elena	1446	SUI	−52B	−49N	=44B	−54N	−46B	−60N	0.5	11.0	12.5	1.25	1278	-16.4
66	Schefer, Anton	1984	GER	−45B	−5B	F	F	F	F	0.0	7.5	7.5	0.00	1078	-24.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Dineen, RyanIRL
+88.4
3.0 pts · #33
2Rotunno, FlavioSUI
+43.6
5.0 pts · #4
3Steiner, RemoSUI
+30.6
2.5 pts · #39

Top rating losers

1Hoffman, JeffreySUI
-68.4
0.5 pts · #66
2Bratosin, VicentiuSUI
-47.2
2.0 pts · #50
3Stalder, DanielSUI
-39.8
1.5 pts · #57

Biggest upsets

R1+323 Elo gap
Dineen, Ryan1588 beat Madhavan, Kailash1911
R1+294 Elo gap
Steiner, Remo1690 beat Schefer, Anton1984
R2+265 Elo gap
Jenny, Karin1458 beat Stalder, Daniel1723