CChessStats

The Irish Women's Chess Championship 2025

Open SwissStandard

12 players participated in this 7-round tournament, held from 24 Oct 2025 to 27 Oct 2025 in Talbot Hotel Stillorgan, Co.Dublin, Ireland, Ireland. 3 titled players from 3 federations. Top 10 Elo average was 1865, and top seed was Diana Mirza (🇮🇪 IRL, WFM, 2004).

Maryna Petrenko (🇮🇪 IRL, WFM, 2002) won with 6.0/7, ahead of Diana Mirza (4.5) and Alice O`Gorman (4.5). Petrenko won solo starting round 3.

The biggest upset came in round 2: Arpita Jain (1625) beat Dayna Ferguson (1808), a +183-point gap.

Location
🇮🇪Talbot Hotel Stillorgan, Co.Dublin, Ireland, Ireland
Dates
24 Oct 2025 → 27 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇮🇪WFMDiana Mirza2004
Avg top 10
1,865
Participants
12
Titled players · 3
WFM×2
WCM×1
Federations · 3 represented
🇮🇪Ireland×10
🇮🇳India×1
🇵🇹Portugal×1
Top 3

How it unfolded

Top 6 · 7 rounds

WFM Maryna Petrenko led from R3; +1.5-point edge over the runner-up.

Co-leaders
5
2
1
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Petrenko6O`Gorman4.5Mirza4.5Doolin4Gora4Scott3.5
R3–R7 · LEAD HELD

WFM Maryna Petrenko never relinquished the lead after R3; final gap +1.5 over the runner-up.

R2 · HEAD-TO-HEAD · WINNER VS 2ND

WFM Maryna Petrenko beat Alice O`Gorman (Black).

WIN STREAKS · 2 top finishers

WFM Maryna Petrenko 3 wins (R1–R3)Alice O`Gorman 3 wins (R5–R7)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1WFMMaryna Petrenko*
1
1
½
2Alice O`Gorman
0
*—
1
3WFMDiana Mirza
0
—*
0
4Nemhain Doolin
½
0
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Petrenko, MarynaWFM2002IRL+11B+3N+4B=5N+2N+8B=6N6.024.025.521.752194+58.8
2Mirza, DianaWFM2004IRL+9N−5B+10N+7N−1B=6B+4B4.523.525.013.251935-8.2
3O`Gorman, Alice1960IRL+10N−1B=6N−4B+11B+7N+5N4.522.524.012.251918-3.6
4Gora, AntoninaWCM1952IRL+8N=6B−1N+3N+7B=5B−2N4.026.029.515.251933-1.4
5Doolin, Nemhain1840IRL+12B+2NF=1B+6N=4N−3B4.023.523.514.002033+63.2
6Scott, Sarah1959IRL=7B=4N=3B+10N−5B=2N=1B3.526.528.012.751861-15.8
7Arpita Jain1625IND=6N+9B+8N−2B−4N−3B+12N3.522.523.58.751864+38.6
8Fougerat, Emma1792POR−4B+12N−7B+11N=9B−1N+10N3.519.020.05.251756-13.6
9Ferguson, Dayna1808IRL−2B−7N+12BF=8N=10B=11B2.515.515.54.251665-23.6
10Batbaatar, Manduhkai1645IRL−3B+11N−2B−6B−12N=9N−8B1.520.021.02.751597-20.0
11Dorman, Orla1691IRL−1N−10BF−8B−3N+12B=9N1.519.019.02.251604-14.6
12Barry, Suzanne1573IRL−5N−8B−9NF+10B−11N−7B1.016.516.51.501460-15.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets