CChessStats

Petersburg Summer 2025 G15

Open SwissStandard

11 players participated in this 7-round tournament, held from 22 Aug 2025 to 28 Aug 2025 in St. Petersburg, Russia. Top 10 Elo average was 1348, and top seed was Sofya Ignatieva (🇷🇺 RUS, 1628).

Polina Olkhovskaya (🇷🇺 RUS, 1600) won with 6.5/7, ahead of Sofya Ignatieva (5.0) and Aleksandra Moskalenko (4.5). Olkhovskaya won solo starting round 3.

The biggest upset came in round 5: Aleksandra Moskalenko (1424) beat Zlata Elonova (1538), a +114-point gap.

Location
🇷🇺St. Petersburg, Russia
Dates
22 Aug 2025 → 28 Aug 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇷🇺Sofya Ignatieva1628
Avg top 10
1,348
Participants
11
Federations · 1 represented
🇷🇺Russia×10
Top 3

How it unfolded

Top 6 · 7 rounds

Polina Olkhovskaya led from R3; +1.5-point edge over the runner-up.

Co-leaders
4
2
1
1
1
1
1
23.55.57R1R2R3R4R5R6R7
R3–R7 · LEAD HELD

Polina Olkhovskaya never relinquished the lead after R3; final gap +1.5 over the runner-up.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Polina Olkhovskaya drew with Sofya Ignatieva (White).

2× WIN STREAK · 3+3 wins

Polina Olkhovskaya posted 3 in a row (R1–R3) and 3 in a row (R5–R7) — total 6 wins.

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Olkhovskaya, Polina1600RUS+9N+6B+5N=2B+7N+3B+8N6.521.023.020.501898+66.0
2Ignatieva, Sofya1628RUS=7B+3N+10B=1N+4B+6N5B5.024.525.517.501638+5.6
3Moskalenko, Aleksandra1424RUS+11N2B=8N+6B+5N1N+9B4.522.522.59.751617+52.0
4Shaimardanova, Rita1460RUS6N+11B+9N=5B2N+7B+10N4.517.017.07.251554+26.7
5Elonova, Zlata1538RUS+8B+10N1B=4N3BF+2N3.524.024.010.751508-9.6
6Zabolotnova, Taisiya1479RUS+4B1N+7B3NF2B+11N3.023.023.07.001437-11.2
7Podolskaya, Alisa1438RUS=2N+9B6N+8B1B4NF2.523.523.57.001379-14.0
8Shishkina, Darya A0RUS5NF=3B7N+10N+11B1B2.518.018.03.2513360.0
9Kiseleva, Maria V1485RUS1B7N4BF+11N+10B3N2.019.019.01.001229-63.2
10Elshaer, Sofia1431RUSF5B2N+11N8B9N4B1.017.517.50.00727-58.8
11FIDE 5565956003B4NF10B9B8N6B0.017.517.50.006530.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets