CChessStats

Pozdnyakov O.A. Memorial - 2025

Open SwissStandard

14 players participated in this 8-round tournament, held from 31 May 2025 to 08 Jun 2025 in Rostov-on-Don, Russia. Top 10 Elo average was 1635, and top seed was Matvey Cherkashin (🇷🇺 RUS, 1815).

Ivan Kolmagorov (🇷🇺 RUS, 1657) won with 6.5/8, ahead of Varvara Sinelshchikova (6.0) and Ruslan Sayadov (5.0). Kolmagorov won solo starting round 3.

The biggest upset came in round 7: Varvara Sinelshchikova (1631) beat Matvey Cherkashin (1815), a +184-point gap.

Location
🇷🇺Rostov-on-Don, Russia
Dates
31 May 2025 → 08 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 8 rounds
Top seed
🇷🇺Matvey Cherkashin1815
Avg top 10
1,635
Participants
14
Federations · 1 represented
🇷🇺Russia×14
Top 3

How it unfolded

Top 6 · 8 rounds

Ivan Kolmagorov led from R3; +0.5-point edge over the runner-up.

Co-leaders
5
5
1
1
1
1
1
1
2468R1R2R3R4R5R6R7R8
Kolmagorov6.5Sinelshchikova6Sayadov5Kolosov4.5Salimov4.5Paskal4
R3–R8 · LEAD HELD

Ivan Kolmagorov held the sole lead from R3 through R8 without losing it.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Ivan Kolmagorov beat Varvara Sinelshchikova (White).

WIN STREAKS · 2 top finishers

Ivan Kolmagorov 3 wins (R3–R5)Varvara Sinelshchikova 4 wins (R4–R7)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Ivan Kolmagorov*
1
1
1
2Varvara Sinelshchikova
0
*
½
—
3Ruslan Sayadov
0
½
*—
4Ruslan Kolosov
0
——*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8PtsBu C1BuSBPerfΔ
1Kolmagorov, Ivan1657RUS+14B=4N+2B+3N+5B=8B+12N=6N6.530.531.525.501874+86.4
2Sinelshchikova, Varvara1631RUS+12N=7B−1N+9B+10N+4B+8N=3B6.030.533.522.501781+46.4
3Sayadov, Ruslan1535RUS=8N=9B+11N−1B+7N=6B+4N=2N5.032.035.520.501735+84.0
4Salimov, Maksim1618RUS+13N=1B=9N+7B=8N−2N−3B+14B4.531.032.014.251646+12.4
5Kolosov, Ruslan1735RUS−9N=11B+12N+13B−1N=10B=6N+8B4.527.530.014.501629-39.6
6Li, Daniil S1577RUS=11N=8B=13N=10B=9N=3N=5B=1B4.030.032.516.251608+12.4
7Paskal, Petr1580RUS+10B=2N=8B−4N−3B=14N+11N=12B4.029.030.013.751593+4.8
8Cherkashin, Matvey1815RUS=3B=6N=7N+11B=4B=1N−2B−5N3.534.538.015.501583-96.8
9Veselova, Daniela1557RUS+5B=3N=4B−2N=6B−12N=14B=13N3.529.530.513.001540-9.2
10Sapunova, Maria1414RUS−7N=12B+14N=6N−2B=5N=13B=11B3.527.528.59.751549+48.4
11Vatamanyuk, Varvara1645RUS=6B=5N−3B−8N+14B+13N−7B=10N3.527.028.09.501542-45.6
12Berov, Valeriy1527RUS−2B=10N−5BF+13N+9B−1B=7N3.030.531.59.751538+4.8
13Kulygin, Demyan1497RUS−4B+14N=6B−5N−12B−11B=10N=9B2.526.527.56.501434-26.8
14Fedorov, Stanislav M1500RUS−1N−13B−10BF−11N=7B=9N−4N1.028.531.03.751259-81.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets