Championship of the SZFO 2025_B15

Open SwissStandard

56 players participated in this 9-round tournament, held from 24 Nov 2025 to 02 Dec 2025 in St. Petersburg, Russia. 2 federations represented. Top 10 Elo average was 1711, and top seed was Makar Berdashkevich ( FID, 2053).

Mikhail Nefedov (🇷🇺 RUS, 1602) won with 8.0/9, ahead of Dmitry E Golubev (7.5) and Yaroslav Troshichev (7.0). Nefedov won solo starting round 8.

The biggest upset came in round 6: Matvey Vik Danilov (1572) beat Makar Berdashkevich (2053), a +481-point gap.

Location

🇷🇺St. Petersburg, Russia

Dates

24 Nov 2025 → 02 Dec 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

Makar Berdashkevich2053

Avg top 10

1,711

Participants

Federations · 2 represented

🇷🇺Russia×55

FIDE (no federation)×1

Top 3

🥇
Mikhail Nefedov
🇷🇺RUS·1602
8.0pts·2023perf+167.2
🥈
Dmitry E Golubev
🇷🇺RUS·1753
7.5pts·1875perf+40.0
🥉
Yaroslav Troshichev
🇷🇺RUS·1804
7.0pts·1756perf-16.4

How it unfolded

Top 6 · 9 rounds

Mikhail Nefedov led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Nefedov8Golubev7.5Troshichev7Veselovsky6.5Berdashkevich6Osoblivyy6

R5–R9 · LEAD HELD

Mikhail Nefedov held the sole lead from R5 through R9 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Mikhail Nefedov beat Dmitry E Golubev (White).

WIN STREAKS · 3 top finishers

Mikhail Nefedov 5 wins (R1–R5)Dmitry E Golubev 4 wins (R1–R4)Yaroslav Troshichev 4 wins (R6–R9)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Mikhail Nefedov	*	1	1	½
2Dmitry E Golubev	0	*	—	—
3Yaroslav Troshichev	0	—	*	1
4Ilja Veselovsky	½	—	0	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Nefedov, Mikhail	1602	RUS	+39B	+54N	+7B	+3N	+2B	=4N	=5B	+6N	+12B	8.0	48.0	50.0	43.75	2023	+167.2
2	Golubev, Dmitry E	1753	RUS	+35B	+19N	+9B	+6B	−1N	+33B	+22N	=5N	+7B	7.5	45.0	49.0	38.00	1875	+40.0
3	Troshichev, Yaroslav	1804	RUS	=10B	+26N	+24B	−1B	=34N	+35N	+28B	+4N	+5B	7.0	43.5	47.5	34.75	1756	-16.4
4	Veselovsky, Ilja	1617	RUS	+32B	+34N	=22B	=7N	+10B	=1B	+38N	−3B	+18N	6.5	44.5	48.0	31.75	1798	+73.2
5	Danilov, Matvey Vik	1572	RUS	−38N	+42B	+25N	+29B	+17N	+6B	=1N	=2B	−3N	6.0	46.0	49.5	31.25	1705	+45.2
6	Berdashkevich, Makar	2053	FID	+25N	+46B	+36B	−2N	+38B	−5N	+11N	−1B	+20N	6.0	44.0	47.5	26.00	1790	-88.4
7	Osoblivyy, Mikhail Ar	1763	RUS	+45N	+13B	−1N	=4B	=35N	+23B	+33N	+38B	−2N	6.0	43.5	47.0	26.25	1664	-37.2
8	Abashev, Vladimir	1557	RUS	+40N	=38B	=23N	−17B	=37N	+47B	=18N	+33B	+36N	6.0	33.5	36.5	23.00	1652	+30.4
9	Lyubimov, Kirill	0	RUS	+20N	+14B	−2N	+13B	=18N	−22B	=36N	+27B	=11N	5.5	43.0	47.0	27.75	1668	0.0
10	Kiselev, Dmitry Pavl	1509	RUS	=3N	+15B	=11N	+36B	−4N	=18B	−27N	+40B	+25N	5.5	42.5	46.0	26.25	1665	+66.0
11	Polyakov, Timofey Dm	1548	RUS	=47B	+52N	=10B	=30N	+24B	=19N	−6B	+21N	=9B	5.5	39.0	41.5	23.75	1638	+25.2
12	Gudilin, Bogdan	1546	RUS	=49N	−23B	+40N	+39B	=52N	=17B	+15N	+22B	−1N	5.5	37.5	40.0	22.25	1524	-6.0
13	Antipin, Andrei Ig	1536	RUS	+56B	−7N	+41B	−9N	−36N	+42B	+23N	+17B	=14N	5.5	37.5	38.5	20.25	1505	-8.8
14	Skurikhin, Timofey	1577	RUS	+31B	−9N	−34B	+47N	=41B	=24N	+35B	+28N	=13B	5.5	36.0	39.0	22.75	1629	+14.8
15	Ioffe, Ilya Dan	1605	RUS	=26B	−10N	−39B	+42B	+25N	+41N	−12B	+31N	+38B	5.5	35.0	38.5	21.75	1484	-46.0
16	Korzhov, Dmitriy	1541	RUS	−17N	+55B	+56N	−33B	−23N	=40B	+47N	+41B	+22N	5.5	29.5	30.5	15.25	642	-51.6
17	Aleksin, Mikhail	0	RUS	+16B	=21N	=28B	+8N	−5B	=12N	=19B	−13N	+34B	5.0	43.0	47.0	25.50	1569	0.0
18	Agafonov, Evgeny	1703	RUS	+29N	=24B	−38N	+54B	=9B	=10N	=8B	+34N	−4B	5.0	40.0	42.0	21.25	1561	-57.2
19	Goroschenya, Maksim A	1551	RUS	+42N	−2B	−33N	+56B	+29N	=11B	=17N	−36B	+37N	5.0	38.0	39.0	18.25	1509	-16.0
20	Andreev, Aleksandr	1559	RUS	−9B	+32N	=35B	+26N	+30B	−38N	=34B	+24N	−6B	5.0	37.5	41.0	22.00	1632	+25.2
21	Maksimov, Leonid	1563	RUS	=23N	=17B	−29N	=25B	+39N	=37B	+52N	−11B	+33N	5.0	35.5	38.0	19.00	1490	-28.0
22	Kovylin, Denis	0	RUS	+50N	+44B	=4N	F	+27B	+9N	−2B	−12N	−16B	4.5	42.0	45.0	19.75	1598	0.0
23	Borisov, Aleksey N	1420	RUS	=21B	+12N	=8B	−28N	+16B	−7N	−13B	=39N	+43B	4.5	41.5	45.0	21.75	1568	+68.0
24	Skobelin, Ivan	1485	RUS	+27B	=18N	−3N	+44B	−11N	=14B	+37N	−20B	=29N	4.5	41.0	44.5	19.50	1596	+51.6
25	Cherkasov, Andrei	1512	RUS	−6B	+31N	−5B	=21N	−15B	+51N	+39B	+43N	−10B	4.5	39.5	42.5	17.00	1539	+5.2
26	Svinin, Daniil	1469	RUS	=15N	−3B	+48N	−20B	=43B	=44N	=31B	+35N	=28B	4.5	37.5	40.5	17.75	1532	+22.4
27	Valiullin, Timur	1605	RUS	−24N	+48B	+37N	=34B	−22N	=30B	+10B	−9N	=32B	4.5	37.0	40.0	19.00	1551	-7.2
28	Fokin, Demian V	1536	RUS	=48N	+49B	=17N	+23B	−33N	+52B	−3N	−14B	=26N	4.5	36.5	39.0	16.25	1399	-38.4
29	Popov, Dmitrii Al	1492	RUS	−18B	+51N	+21B	−5N	−19B	−43N	+55B	+52N	=24B	4.5	34.5	36.0	14.25	1384	-32.8
30	Zhalov, Vladimir	1426	RUS	−44N	+45B	+46N	=11B	−20N	=27N	=43B	−37B	+41N	4.5	33.0	36.5	17.25	1510	+34.8
31	Ressin, Aleksandr	1440	RUS	−14N	−25B	=53N	+48B	=44N	+50B	=26N	−15B	+40N	4.5	33.0	35.5	14.75	1426	-4.4
32	Ermakov, Egor A	1487	RUS	−4N	−20B	+55N	−37B	−42N	+53B	+54N	+45B	=27N	4.5	31.5	33.0	11.75	1495	+1.2
33	Pekshev, Konstantin A	1461	RUS	+43B	−36N	+19B	+16N	+28B	−2N	−7B	−8N	−21B	4.0	43.5	47.0	18.50	1564	+46.8
34	Burya, Ivan	1521	RUS	+55N	−4B	+14N	=27N	=3B	=36B	=20N	−18B	−17N	4.0	42.5	44.0	17.25	1585	+21.2
35	Korobov, Nikolay Serg	1502	RUS	−2N	+53B	=20N	+43N	=7B	−3B	−14N	−26B	+49N	4.0	42.0	44.5	14.50	1488	-10.4
36	Basharimov, Nikita	1603	RUS	F	+33B	−6N	−10N	+13B	=34N	=9B	+19N	−8B	4.0	41.5	41.5	19.25	1592	-9.2
37	Kirusha, Andrey	1532	RUS	=52B	=41N	−27B	+32N	=8B	=21N	−24B	+30N	−19B	4.0	37.5	40.0	17.50	1471	-24.4
38	Stankevich, Vyacheslav	1431	RUS	+5B	=8N	+18B	F	−6N	+20B	−4B	−7N	−15N	3.5	46.0	50.5	19.00	1610	+62.8
39	Zaytsev, Aleksandr Nik	1463	RUS	−1N	=50B	+15N	−12N	−21B	+46B	−25N	=23B	=45N	3.5	40.0	43.0	14.50	1463	-1.2
40	Chiviksin, Nikolai Iv	0	RUS	−8B	=43N	−12B	=53N	+49B	=16N	+44B	−10N	−31B	3.5	37.0	39.5	12.25	1379	0.0
41	Sorokin, Vladimir Al.	0	RUS	=?N	=37B	−13N	+46B	=14N	−15B	+50N	−16N	−30B	3.5	37.0	37.0	11.25	1461	0.0
42	Malygin, Viktor	0	RUS	−19B	−5N	+51B	−15N	+32B	−13N	−45N	=44B	+53N	3.5	36.5	39.0	11.75	1317	0.0
43	Gusev, Andrey	1586	RUS	−33N	=40B	+49N	−35B	=26N	+29B	=30N	−25B	−23N	3.5	34.0	37.0	13.75	1312	-104.0
44	Agapitov, Grigoriy	1566	RUS	+30B	−22N	=54B	−24N	=31B	=26B	−40N	=42N	=47B	3.5	32.5	34.5	13.25	1468	-26.8
45	Deryabin, Arseny R	1508	RUS	−7B	−30N	−52B	=51N	+48B	=54N	+42B	−32N	=39B	3.5	30.5	32.5	10.75	1291	-55.2
46	Varov, Ilua Nik	1542	RUS	+51B	−6N	−30B	−41N	=53B	−39N	=48B	+56N	=52B	3.5	28.5	29.5	8.00	813	-54.8
47	Popov, Mikhail Yu	0	RUS	=11N	−?B	+50N	−14B	F	−8N	−16B	+53B	=44N	3.0	33.5	33.5	10.00	1397	0.0
48	Vasiliev, Nikita Ev	0	RUS	=28B	−27N	−26B	−31N	−45N	+49B	=46N	=50B	=55B	3.0	31.0	32.5	9.25	1291	0.0
49	Pelageychenko, Lev	0	RUS	=12B	−28N	−43B	=50B	−40N	−48N	+56B	+55N	−35B	3.0	28.5	29.5	6.75	1309	0.0
50	Kondratiev, Dmitry A	1555	RUS	−22B	=39N	−47B	=49N	+55B	−31N	−41B	=48N	=51B	3.0	28.0	29.5	7.75	1258	-32.4
51	Kostylev, Luchezar	0	RUS	−46N	−29B	−42N	=45B	+56N	−25B	−53N	+54B	=50N	3.0	27.0	28.0	6.25	1399	0.0
52	Starykh, Mark	0	RUS	=37N	−11B	+45N	F	=12B	−28N	−21B	−29B	=46N	2.5	36.0	36.0	10.00	1394	0.0
53	Chebotarev, Maksim L	0	RUS	−54B	−35N	=31B	=40B	=46N	−32N	+51B	−47N	−42B	2.5	29.5	31.5	8.75	1259	0.0
54	Buvailik, Vasily	1516	RUS	+53N	−1B	=44N	−18N	F	=45B	−32B	−51N	−56B	2.0	33.0	34.0	6.00	1335	-44.4
55	Lukonenko, Ivan	0	RUS	−34B	−16N	−32B	F	−50N	+56B	−29N	−49B	=48N	1.5	28.5	28.5	2.50	723	0.0
56	Kazakov, Arseniy	0	RUS	−13N	F	−16B	−19N	−51B	−55N	−49N	−46B	+54N	1.0	29.0	29.0	2.00	1300	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Nefedov, MikhailRUS
+167.2
8.0 pts · #1
2Veselovsky, IljaRUS
+73.2
6.5 pts · #5
3Borisov, Aleksey NRUS
+68.0
4.5 pts · #11

Top rating losers

1Gusev, AndreyRUS
-104.0
3.5 pts · #37
2Berdashkevich, MakarFID
-88.4
6.0 pts · #3
3Agafonov, EvgenyRUS
-57.2
5.0 pts · #13

Biggest upsets

R6+481 Elo gap
Danilov, Matvey Vik1572 beat Berdashkevich, Makar2053
R8+451 Elo gap
Nefedov, Mikhail1602 beat Berdashkevich, Makar2053
R4+300 Elo gap
Golubev, Dmitry E1753 beat Berdashkevich, Makar2053