CChessStats

Dubna 2025_open B

Open SwissStandard

19 players participated in this 9-round tournament, held from 13 Nov 2025 to 19 Nov 2025 in Dubna, Russia. 2 federations represented. Top 10 Elo average was 1751, and top seed was Nikita Gerdt ( FID, 1857).

Alexandr Ivan Kazakov (🇷🇺 RUS, 1769) won with 7.0/9, ahead of Miroslav Vershinin (6.5) and Mikhail Davydenya (6.0). Kazakov shared the lead from round 8 and broke clear in the final round.

The biggest upset came in round 9: Kristina Geo Neverova (1531) beat Saveliy Aleks Samburov (1758), a +227-point gap.

Location
🇷🇺Dubna, Russia
Dates
13 Nov 2025 → 19 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Top seed
Nikita Gerdt1857
Avg top 10
1,751
Participants
19
Federations · 2 represented
🇷🇺Russia×16
FIDE (no federation)×3
Top 3

How it unfolded

Top 6 · 9 rounds

Alexandr Ivan Kazakov led from R4; +0.5-point edge over the runner-up.

Co-leaders
8
3
1
1
2
1
1
2
1
2.54.579R1R2R3R4R5R6R7R8R9Kazakov takes leadVershinin takes leadKazakov takes lead
Kazakov7Vershinin6.5Davydenya6Preobrazhenskiy5.5Yukhman5Gerdt5
R4 · LEADER CHANGE15 Nov

Alexandr Ivan Kazakov takes the sole lead (3.5/4).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Alexandr Ivan Kazakov beat Miroslav Vershinin (Black).

WIN STREAKS · 2 top finishers

Miroslav Vershinin 3 wins (R1–R3)Mikhail Davydenya 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Alexandr Ivan Kazakov*
1
½
—
2Miroslav Vershinin
0
*
1
½
3Mikhail Davydenya
½
0
*—
4Yaroslav Preobrazhenskiy—
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Kazakov, Alexandr Ivan1769RUS+16N+9B=15N+2N=3B=5B=8N+12B+6N7.039.542.032.501925+66.1
2Vershinin, Miroslav1827RUS+14N+7B+8N−1B+12N+3B=5N=6B=4N6.542.546.031.251868+19.0
3Davydenya, Mikhail1684RUSF+14B+7N+15B=1N−2N+11B+5B=10N6.039.539.527.001910+94.0
4Preobrazhenskiy, Yaroslav1681RUS−9N=16B+19N+10B−5N=12B+17N+8B=2B5.535.536.019.501743+30.8
5Gerdt, Nikita1857FID=11B=6N+10B=8N+4B=1N=2B−3N=7B5.045.049.527.001744-52.8
6Trapeznikova, Emma1747RUS−7N=5B+16N=11B+15N=8B+9N=2N−1B5.041.043.521.001746-0.4
7Yukhman, Matvey1603RUS+6B−2N−3B+16N=11N+13B=12N=9B=5N5.040.042.520.751747+63.6
8Petrova, Kseniia K.1713RUS+18B+17N−2B=5B=13N=6N=1B−4N+11B5.040.041.519.001756+20.4
9Neverova, Kristina Geo1531RUS+4B−1N−11B=14N+17B+10N−6B=7N+15B5.038.541.020.251709+84.4
10Shpigotskiy, Dmitriy1633FID+13N=15B−5N−4N+14B−9B+19N+17B=3B5.034.535.015.001725+43.2
11Smirnova, Viktoria A1644FID=5N−13B+9N=6N=7B+18B−3N+14B−8N4.538.540.017.501684+17.5
12Kotelnikova, Vladislava1614RUS−15N+19B+18N+13B−2B=4N=7B−1NF4.033.033.011.251710+19.8
13Abramov, Pavel1816RUS−10B+11N+17B−12N=8B−7N=16BF+18N4.030.030.012.251613-41.4
14Smirnov, Egor1640RUS−2B−3NF=9B−10N+15B+18N−11N+19B3.532.032.07.501619-10.4
15Samburov, Saveliy Aleks1758RUS+12B=10N=1B−3N−6B−14NF+19B−9N3.036.036.010.501573-81.6
16Lifantov, Aleksandr Evg1617RUS−1B=4N−6B−7BF+19N=13N=18B−17N2.531.031.06.001529-38.0
17Kiselev, Stepan S1514RUS+19N−8B−13N=18B−9NF−4B−10N+16B2.529.029.03.751510-3.2
18Andresyuk, Dmitriy Aleks1548RUS−8NF−12B=17N=19B−11N−14B=16N−13B1.526.526.52.751401-60.0
19Doronine, Vladimir1660RUS−17B−12N−4BF=18N−16B−10B−15N−14N0.527.527.50.751183-77.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets