CChessStats

SPb G15 Championship Semifinal 2025

Open SwissStandard

23 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 1534, and top seed was Varvara Ostanina (🇷🇺 RUS, 1648).

Angelina Shestak (🇷🇺 RUS, 1495) won with 5.5/7, ahead of Polina V. Mikheeva (5.5) and Daria Khripunova (5.0). Shestak won on tie-break after catching the field in the final round.

The biggest upset came in round 5: Angelina Shestak (1495) beat Varvara Ostanina (1648), a +153-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
🇷🇺Varvara Ostanina1648
Avg top 10
1,534
Participants
23
Federations · 1 represented
🇷🇺Russia×22
Top 3

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 2 players tied at 5.5/7, decided on Buchholz.

Co-leaders
10
3
2
1
1
1
2
23.55.57R1R2R3R4R5R6R7Demenkova takes leadKhripunova takes lead
Shestak5.5Mikheeva5.5Khripunova5Matyushina5Demenkova5Dzhurabaeva4.5— ex-leaders:Demenkovaled R5, #11
R5 · LEADER CHANGE30 Oct

Varvara Demenkova takes the sole lead (4.5/5).

R7 · TIEBREAK CLUSTER

2 players finish on 5.5/7. Shestak takes the title on Buchholz Cut1 (24.5).

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Angelina Shestak lost to Polina V. Mikheeva (White).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Angelina Shestak*
0
—
½
2Polina V. Mikheeva
1
*
1
0
3Daria Khripunova—
0
*
1
4Varvara Matyushina
½
1
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Shestak, Angelina1495RUS+14B=4N−2B+12N+11B+13N+8B5.524.527.519.501744+86.8
2Mikheeva, Polina V.1518RUS+23N=22B+1N−4N+8B+7B+3N5.524.525.520.001755+56.8
3Khripunova, Daria1557RUS+21B+11N+10B−7B+4N+5N−2B5.027.529.019.501818+76.4
4Matyushina, Varvara1561RUS+18N=1B+22N+2B−3B+10N=5B5.027.028.017.751580+4.0
5Demenkova, Varvara1477RUS+17N=10B+9N+16B+7N−3B=4N5.025.027.017.501525+9.6
6Dzhurabaeva, Yasmina0RUS=9N−8B=12B=20N+18B+15N+7N4.520.022.013.5014770.0
7Kozhemyaka, Kristina0RUS+15B+13N+8B+3N−5B−2N−6B4.027.030.015.0015390.0
8Kosheleva, Alesya1499RUS+12B+6N−7N+14B−2N+9B−1N4.026.529.514.501555+16.4
9Pogodina, Anastasiia1501RUS=6B+19N−5B+11N=10B−8N+12B4.024.526.513.251565+23.6
10Ivashchenko, Marya1453RUS+19B=5N−3N+22B=9N−4B+13B4.024.025.010.501512+10.0
11Ostanina, Varvara1648RUS+16N−3B+17N−9B−1N+21B+15N4.022.524.09.501445-54.4
12Mokeeva, Liubov1445RUS−8N+23B=6N−1B+22N=14B−9N3.022.023.05.751331-30.8
13Dyuzhaya, Viktoriya1443RUS+20N−7B−14N+17B+16N−1B−10N3.021.523.57.00675-58.8
14Bereznitskaya, Uliana1433RUS−1N+18B+13B−8N−15B=12N=19N3.020.522.57.501354-30.0
15Chepel-Malaia, Alisa1467RUS−7N−17B+23N+21B+14N−6B−11B3.019.020.05.501725+53.2
16Tylevich, Maria0RUS−11B+21N+20B−5N−13B−18N+23B3.017.518.54.5014530.0
17Zhukova, Mila0RUS−5B+15N−11B−13N=19B=20NF2.019.019.05.0013640.0
18Bobrova, Veronika A0RUS−4B−14N=19BF−6N+16B=21N2.019.019.04.7513280.0
19Makhinya, Anna1482RUS−10N−9B=18N=23B=17NF=14B2.016.016.04.001280-46.0
20FIDE 5400033700—−13BF−16N=6B−21N=17B+22N2.015.015.04.257190.0
21Mokeeva, Varvara1569RUS−3N−16BF−15N+20B−11N=18B1.519.019.03.00756-62.0
22Filatova, Polina0RUSF=2N−4B−10N−12B=23N−20B1.020.520.53.2512560.0
23Zabolotnova, Taisiya1505RUS−2B−12N−15B=19NF=22B−16N1.017.517.51.501163-54.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets