CChessStats

SPb B19 Championship Semifinal 2025

Open SwissStandard

18 players participated in this 7-round tournament, held from 26 Oct 2025 to 01 Nov 2025 in St. Petersburg, Russia. Top 10 Elo average was 1808, and top seed was Artem Ershov (🇷🇺 RUS, 1921).

Andrey Puchkov (🇷🇺 RUS, 1683) won with 5.0/7, ahead of Roman Grekhov (5.0) and Artem Ershov (5.0). Puchkov shared the lead from round 6, winning on tie-break.

The biggest upset came in round 4: Andrey Ryabchenko (1648) beat Ilya Rusanov (1867), a +219-point gap.

Location
🇷🇺St. Petersburg, Russia
Dates
26 Oct 2025 → 01 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇷🇺Artem Ershov1921
Avg top 10
1,808
Participants
18
Federations · 1 represented
🇷🇺Russia×18
Top 3

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 3 players tied at 5.0/7, decided on Buchholz.

Co-leaders
6
3
1
1
2
2
3
23.55.57R1R2R3R4R5R6R7
Ershov5Grekhov5Puchkov5Rusanov4.5Korotkikh4.5Ryabchenko4— ex-leaders:Zhukovled R3–R4, #8
R7 · TIEBREAK CLUSTER

3 players finish on 5.0/7. Puchkov takes the title on Buchholz Cut1 (24.0).

R4–R6 · WIN STREAK

Artem Ershov won 3 in a row (R4–R6).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Artem Ershov*—
½
—
2Roman Grekhov—*——
3Andrey Puchkov
½
—*
1
4Ilya Rusanov——
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Puchkov, Andrey1683RUS=14B+5N=16B+9N=6N+4B=3B5.024.026.019.251938+94.8
2Grekhov, Roman1902RUS−8N+12B+15N=10N+7B=9N+6B5.022.024.517.001866-4.8
3Ershov, Artem1921RUS+18B−9N=7B+16N+10B+6B=1N5.022.024.016.001871-9.6
4Korotkikh, Miron1855RUS+12B+8N=10B=6B+11N−1N=7B4.523.526.515.751775-21.6
5Rusanov, Ilya1867RUS=16N−1B+8B−7N+17B+12N+9B4.521.523.513.501744-36.8
6Zhukov, Konstantin1860RUS+17B+7N+9B=4N=1B−3N−2N4.027.029.014.251821-10.4
7Ryabchenko, Andrey1648RUS+11N−6B=3N+5B−2N+14B=4N4.026.028.514.751827+64.4
8Gavrikov, Andrei1686RUS+2B−4B−5N−11B+18N+17N+10B4.022.524.512.501771+32.0
9Dudkin, Mikhail Dm.1838RUS+15N+3B−6N−1B+16N=2B−5N3.526.028.012.001764-24.8
10Gerchikov, Matvey1821RUS=13B+14N=4N=2B−3N+11B−8N3.524.527.011.751703-37.6
11Averbukh, Aleksandr1470RUS−7B=17N+13B+8N−4B−10N=12B3.022.024.09.501610+43.2
12Bogomolov, Alexey S.1538RUS−4N−2N+18B=14B+15N−5B=11N3.022.024.07.251637+27.2
13Abrosin, Sergei1523RUS=10N−16B−11N+18B−14N=15B+17B3.015.517.57.001535+2.0
14Berezin, Kirill I.1563RUS=1N−10B=17B=12N+13B−7N−18B2.520.522.58.001519-19.2
15Shelyapin, Ilya1560RUS−9B+18N−2B−17N−12B=13N+16B2.518.520.55.501539-14.0
16Kolva, Petr1551RUS=5B+13N=1N−3B−9B−18N−15N2.023.525.57.751554-7.6
17Afanasiev, Mikhail V1546RUS−6N=11B=14N+15B−5N−8B−13N2.021.023.55.251489-26.8
18Kuznetsov, Viktor1588RUS−3N−15B−12N−13N−8B+16B+14N2.020.022.04.501462-50.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets