CChessStats

Drogheda Chess Congress 2025 - O'Boyle Championship

Open SwissStandard

22 players participated in this 6-round tournament, held from 31 May 2025 to 01 Jun 2025 in St Mary's Parish Primary School, Bryanstown, Drogheda A92 XD80, Ireland. 2 federations represented. Top 10 Elo average was 1844, and top seed was Jakov Jagic (🇮🇪 IRL, 1893).

Dariy Kelbas (🇺🇦 UKR, 1826) won with 5.0/6, ahead of Joshua Ryan (4.5) and Jakov Jagic (4.0). Kelbas shared the lead from round 5 and broke clear in the final round.

The biggest upset came in round 3: Darragh Greenan (1693) beat Vjekoslav Novak (1831), a +138-point gap.

Location
🇮🇪St Mary's Parish Primary School, Bryanstown, Drogheda A92 XD80, Ireland
Dates
31 May 2025 → 01 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇮🇪Jakov Jagic1893
Avg top 10
1,844
Participants
22
Federations · 2 represented
🇮🇪Ireland×20
🇺🇦Ukraine×2
Top 3

How it unfolded

Top 6 · 6 rounds

Dariy Kelbas led from R6; +0.5-point edge over the runner-up.

Co-leaders
8
2
1
1
2
1
1.534.56R1R2R3R4R5R6Kelbas takes lead
Kelbas5Ryan4.5Jagic4Cogelja4Baczkowski3.5Greenan3.5
R6 · LEADER CHANGE02 Jun

Dariy Kelbas takes the sole lead (5.0/6).

WIN STREAKS · 2 top finishers

Dariy Kelbas 3 wins (R4–R6)Joshua Ryan 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Dariy Kelbas*—
1
1
2Joshua Ryan—*
½
0
3Jakov Jagic
0
½
*—
4Mihovil Niko Cogelja
0
1
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Kelbas, Dariy1826UKR+11B+6N−5B+7N+4B+3B5.018.020.517.001997+41.2
2Ryan, Joshua1814IRL+7B=3B−4N+18B+11N+5N4.517.018.512.501898+11.2
3Jagic, Jakov1893IRL+9B=2N=15B+8N+5B−1N4.019.021.513.001924+10.0
4Cogelja, Mihovil Niko1773IRL+16B=8N+2B=5N−1N+7B4.019.021.012.751888+32.0
5Baczkowski, Piotr1707IRL+21B+17N+1N=4B−3N−2B3.519.521.010.501882+29.0
6Greenan, Darragh1693IRL+13N−1B+12N=11B=14N=8B3.515.518.09.001870+58.8
7Smoliarenko, Illia0UKR−2N+18B+20N−1B+17N−4N3.017.018.55.001781-21.2
8Kavanagh, James1883IRL+20N=4B+19N−3B−15N=6N3.015.517.06.751797-14.0
9Liu, Murray1807IRL−3N−22N+21B=12B=13N+16B3.012.513.56.001843+11.6
10Mullins, Niki1769IRL=12N=19B−18N=13B=16N+17B3.010.512.06.251806+12.8
11Keers, Shane1717IRL−1NF+22B=6N−2B+12B2.516.516.55.251799+22.4
12Novak, Vjekoslav1831IRL=10B=14N−6B=9N+18B−11N2.514.516.05.751683-25.0
13Ferguson, Dayna1824IRL−6B+16N−14B=10N=9B=20B2.514.015.55.751730-16.2
14Herring, Jack1796IRL=19N=12B+13NF=6BF2.510.010.06.251898+10.8
15Salmin, Vitaliy1756IRL+22BF=3NF+8BF2.58.08.06.002141+29.0
16Du Berry, Ross1851IRL−4N−13B=17B+20N=10B−9N2.014.516.04.001674-28.8
17Loughran, John1816IRL=18N−5B=16N+19B−7B−10N2.013.014.53.251697-16.4
18Puchkov, Vladislav1653IRL=17B−7N+10B−2N−12N−21B1.515.016.54.001662+2.0
19Mohamed, Mohamed Abbasher1863IRL=14B=10N−8B−17N=21NF1.512.012.03.501669-52.4
20Allidine, Mark1801IRL−8B+21N−7B−16BF=13N1.512.012.02.751759-10.0
21Cummins, Finn1824IRL−5N−20B−9NF=19B+18N1.511.011.02.251618-56.4
22Gorman, Dean1829IRL−15N+9B−11NFFF1.08.08.03.001636-15.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets