CChessStats

Etude May Classic

Open SwissStandard

21 players participated in this 8-round tournament, held from 08 May 2025 to 11 May 2025 in Novosibirsk, Russia. 2 federations represented. Top 10 Elo average was 1697, and top seed was Sergey Chunikhin (🇷🇺 RUS, 1915).

Denis Todorov (🇷🇺 RUS, 1709) won with 7.0/8, ahead of Yaroslav Demarcheck (6.5) and Sergey Chunikhin (5.5). Todorov won solo starting round 3.

The biggest upset came in round 1: Stepan Ulyanov (1420) beat Yaroslav Demarcheck (1802), a +382-point gap.

Location
🇷🇺Novosibirsk, Russia
Dates
08 May 2025 → 11 May 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 8 rounds
Top seed
🇷🇺Sergey Chunikhin1915
Avg top 10
1,697
Participants
21
Federations · 2 represented
🇷🇺Russia×18
FIDE (no federation)×1
Top 3

How it unfolded

Top 6 · 8 rounds

Denis Todorov led from R3; +0.5-point edge over the runner-up.

Co-leaders
10
4
1
1
1
1
1
1
2468R1R2R3R4R5R6R7R8
Todorov7Demarcheck6.5Chunikhin5.5Bogomazov5Lebedev4.5Kamenev4.5
R3–R8 · LEAD HELD

Denis Todorov held the sole lead from R3 through R8 without losing it.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Denis Todorov drew with Yaroslav Demarcheck (White).

WIN STREAKS · 2 top finishers

Denis Todorov 3 wins (R1–R3)Yaroslav Demarcheck 4 wins (R2–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Denis Todorov*
½
½
—
2Yaroslav Demarcheck
½
*
1
1
3Sergey Chunikhin
½
0
*—
4Roman Bogomazov—
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8PtsBu C1BuSBPerfΔ
1Todorov, Denis1709RUS+9N+11B+15N=3B+6N=2B+5N+14B7.031.534.528.501968+66.8
2Demarcheck, Yaroslav1802RUS−14N+4B+5N+15B+3N=1N+8B+10B6.533.036.029.501791+2.0
3Chunikhin, Sergey1915RUS+16B+7N=8B=1N−2B+14N+9B=13N5.532.535.521.751764-43.6
4Bogomazov, Roman0RUS=12B−2N+20B=17N+15B=10N=7B+8N5.028.530.516.5016570.0
5Mashoshin, Sergey0RUS−8B+?N−2B+11N+17B+16N−1B=7N4.531.531.511.7514910.0
6Lebedev, Mikhail1862RUS+10B=19N+12B=8N−1B=7N−13B+9N4.530.533.017.001625-34.6
7Kamenev, Vladislav0RUS+13N−3B−14N+?B+18N=6B=4N=5B4.529.029.013.5016480.0
8Zavadskii, Vadim1585RUS+5N+17B=3N=6B=16N=9B−2N−4B4.033.036.016.001700+26.0
9Shishkina, Mariya1641RUS−1B+20N=19B+12N+10B=8N−3N−6B4.031.033.012.751565-26.8
10Aymerich Sazonova, Alexandra1583FID−6N+21B=17N+14B−9N=4B+16B−2N4.029.029.010.001601+2.4
11Ivanov, Bogdan S0RUS+?B−1NF−5B=12N−18B+17N+15N3.527.027.07.759080.0
12Piruev, Matvey0RUS=4N+13B−6N−9B=11B−15N=?N+18B3.526.526.510.7516240.0
13Kozhekin, Alexandr1751RUS−7B−12NF−18B+20N+17B+6N=3B3.526.026.012.252081+35.2
14Ulyanov, Stepan1420RUS+2B−15N+7B−10NF−3B+18N−1N3.033.536.014.001535+15.6
15Chernokulsky, Alexander0RUS+18N+14B−1B−2N−4N+12B−20N−11B3.031.533.59.5015180.0
16Chernokulsky, Oleg1639RUS−3N+18BF=19N=8B−5B−10N+20B3.027.029.08.251449-41.6
17Snytko, Mikhail0RUS+20B−8N=10B=4B−5N−13N−11B+?B3.026.526.56.5013650.0
18Spiridonov, Konstantin0RUS−15B−16N+?B+13N−7B+11N−14B−12N3.024.024.07.0014760.0
19Zorina, Viktoriya1484RUS+21N=6B=9N=16BFFFF2.514.514.55.751714+33.2
20FIDE 5400471130—−17N−9B−4NF−13B+?N+15B−16N2.021.521.53.008750.0
21FIDE 5400470910—−19B−10NFFFFFF0.010.010.00.007340.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets