CChessStats

Ulster Championships 2025

Open SwissStandard

24 players participated in this 6-round tournament, held from 23 Aug 2025 to 25 Aug 2025 in 60-62 Longstone Street, Lisburn, BT28 1DJ, Ireland. 2 federations represented. Top 10 Elo average was 1966, and top seed was Oisin O`cuilleanain (🇮🇪 IRL, 2129).

Oisin O`cuilleanain (🇮🇪 IRL, 2129) won with 6.0/6, ahead of Mandar Tahmankar (4.5) and Stephen P. Scannell (4.5). O`cuilleanain won solo starting round 4.

The biggest upset came in round 2: Modestas Razbadauskas (1734) beat Danny Roberts (1945), a +211-point gap.

Location
🇮🇪60-62 Longstone Street, Lisburn, BT28 1DJ, Ireland
Dates
23 Aug 2025 → 25 Aug 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇮🇪Oisin O`cuilleanain2129
Avg top 10
1,966
Participants
24
Federations · 2 represented
🇮🇪Ireland×21
🇮🇳India×3
Top 3

How it unfolded

Top 6 · 6 rounds

Oisin O`cuilleanain led from R4; +1.5-point edge over the runner-up.

Co-leaders
10
5
3
1
1
1
1.534.56R1R2R3R4R5R6
O`cuilleanain6Scannell4.5Tahmankar4.5Zelenchuk4Edens3.5Campbell3.5
R4–R6 · LEAD HELD

Oisin O`cuilleanain never relinquished the lead after R4; final gap +1.5 over the runner-up.

WIN STREAKS · 2 top finishers

Oisin O`cuilleanain 6 wins (R1–R6)Mandar Tahmankar 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Oisin O`cuilleanain*—
1
1
2Stephen P. Scannell—*——
3Mandar Tahmankar
0
—*
1
4Daniil Zelenchuk
0
—
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1O`cuilleanain, Oisin2129IRL+22N+12B+4N+8B+2N+5B6.018.520.020.002702+27.2
2Tahmankar, Mandar2082IND+7B+8N+9B=6N−1B+4B4.520.524.016.252111+5.8
3Scannell, Stephen P.2050IRL=10N+19B=17N=5B+7B+6N4.516.018.013.502000-5.4
4Zelenchuk, Daniil1957IRL+15B+11N−1B+9N+6B−2N4.021.023.513.002003+7.2
5Spackman, Conor1738IRL−12B+22B+14N=3N+11B−1N3.520.021.510.251962+26.6
6Razbadauskas, Modestas1734IRL+14N+17B+10N=2B−4N−3B3.519.521.510.752007+41.6
7Doolin, Nemhain1849IRL−2N+24B+21N+13B−3N=9B3.517.518.07.251910+20.8
8Campbell, Andrew1887IRL+24N−2B+18B−1N+20B=12N3.517.518.06.001946+9.6
9Annesley, Gareth1952IRL+18N+21B−2N−4B+12B=7N3.517.019.08.751915-3.2
10Edens, Jack1777IRL=3B+13N−6B−12N+19B+16N3.516.518.59.751899+40.0
11Kurochkin, Iaromir1856IRL+23N−4B=13N+17B−5N+15B3.515.016.57.5018200.0
12Cole, Ethan1891IRL+5N−1N=15B+10B−9N=8B3.020.022.510.001874-6.8
13Aashay R Kher1702IND+16N−10B=11B−7N+18N=14B3.016.018.07.751829+17.0
14White, Nicole1888IRL−6B+20N−5B+15N=16B=13N3.015.017.07.251761-36.7
15Alwin Micheal1759IND−4N+23B=12N−14B+17N−11N2.515.517.05.001833+13.6
16Jeffers, David1874IRL−13B−18N+19N+21B=14N−10B2.513.515.55.501699-57.2
17Roberts, Danny1945IRL+20B−6N=3B−11N−15B=23N2.016.017.55.001738-22.4
18White, George1757IRL−9B+16B−8N−19N−13B+24N2.014.515.03.001698-16.8
19Prokopenko, Bohdan1801IRLF−3N−16B+18B−10N+22B2.014.014.03.501791-4.4
20Robinson, Mark1754IRL−17N−14B+23N+22B−8N−21B2.012.013.53.001597-18.8
21Smylie, Sam1612IRLF−9N−7B−16N+24B+20N2.012.012.02.501758+33.6
22Hill, David1854IRL−1B−5N+24B−20N=23B−19N1.515.015.51.251588-68.8
23Davey, Finn Patrick0IRL−11B−15N−20B=24N=22N=17B1.511.512.02.0016580.0
24Stinson, William James1720IRL−8B−7N−22N=23B−21N−18B0.512.514.00.75992-81.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets