Format
OO
O`cuilleanain, Oisin
🇮🇪FIDE 2514249· Male· Ireland· Born in 2004
Oisin O`Cuilleanain, a 22-year-old Irish player. currently rated 2177 in Standard. He took a 14-month break between May 2020 and Aug 2021.
Current rating
2177
Standard
Rpd2008·Blz2046
All-time high
2177
at best
Apr 2026 · age 22
Apr 2026 · age 22
Activity
94
games / yr avg. · ≈8/mo
107 past 12 mo · ≈9/mo
classical only
Very active
classical only
Very active
Signature stat
#27
in Ireland · of 942
Career timeline
11 entries2026
Peak Irish rank: #27
at age 22 · rated 2177
Apr 2026
All-time peak 2177
at age 22
Apr 2026
2025
Re-crossed 2100
at age 21
Aug 2025
2024
Re-crossed 2100
at age 20
Aug 2024
2023
Re-crossed 2100
at age 19
Sep 2023
Crossed 2100
at age 19
Apr 2023
Recent Results (last 12 months)
Evolution
+90
2087 → 2177
Score
28/ 4759.6%
22W12D13L
Standard rating history
Rankings
/
Ireland
#27
out of 1,233 players
Europe
#7,155
in continent
World
#9,522
out of 400,000+
National ranking
Europe & World
Europe
World
Ireland
Europe
World
FIDE Games Detail
Last scraped: 2026-04-17Scrape games
47 Standard games (last 12 months)
2026-04STDLCU Armstrong Cup 2025-2026 Rounds 7-8Elo 2177
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| Wallace, Paul A.IRL | 2159 | 1 | +10.4 | ♔ |
| fMcPhillips, KarlIRL | 2139 | 0 | -10.2 | ♔ |
2026-04STDThe Cavan Chess Congress 2026 MastersElo 2177
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| Bolkeny, GaborHUN | 1850 | 1 | +2.6 | ♚ |
| fArtemenko, OlegUZB | 2313 | ½ | +3.8 | ♔ |
| Bartczak, KorneliuszIRL | 2120 | 1 | +8.6 | ♚ |
| cMelaugh, ShaneIRL | 2214 | 0 | -8.8 | ♔ |
2026-03STD2025-26 4NCL Division 4 Rounds 5-6Elo 2171
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| Barnes, DavidENG | — | 1 | +1.6 | ♚ |
| Attwell, BenENG | 1814 | 1 | +2.2 | ♔ |
2026-03STDDCU Open 2026Elo 2171
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| Cummins, SeanIRL | 1874 | 1 | +3.2 | ♚ |
| Kelbas, DariyUKR | 1866 | ½ | -7 | ♚ |
| Maguire, TallannIRL | 1936 | 1 | +4.2 | ♚ |
| Hushpit, LukianIRL | 2100 | ½ | -1.8 | ♔ |
2026-03STDThe Sligo Chess and Culture Festival Weekender 2026 MasterElo 2171
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| cMacelligott, GerardIRL | 1921 | 0 | -15.6 | ♚ |
| Machin Arbelo, Pedro AlexisESP | 1954 | 1 | +5 | ♔ |
| Duggan, DylanIRL | 1904 | 1 | +4 | ♚ |
| O`gorman, AliceIRL | 1995 | 1 | +6 | ♔ |
| Blijlevens, PimNED | 1942 | 1 | +4.8 | ♔ |
2026-02STDGonzaga Chess Classic Masters 2026Elo 2164
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| Hughes, PadraigIRL | 1920 | 1 | +4.2 | ♚ |
| Barnes, OliverIRL | 2066 | 1 | +7.8 | ♔ |
| Wafa, ShrookEGY | 2190 | 1 | +11.2 | ♚ |
| cMulay, PratikIND | 2087 | ½ | -1.6 | ♚ |
| fFreeman, GordonIRL | 1998 | ½ | -4 | ♔ |
2026-02STDLCU Armstrong Cup 2025-2026 Rounds 5-6Elo 2164
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| O`connor, JonathanIRL | 2173 | 1 | +10 | ♔ |
2026-02STDThe Irish New Year Norm events 2026 GROUP AElo 2164
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| gCzebe, AttilaHUN | 2289 | 0 | -6.8 | ♚ |
| mRakhmangulov, AndreiUKR | 2271 | ½ | +2.8 | ♚ |
| fCarroll, PeterIRL | 2171 | 0 | -10 | ♔ |
| cShearsby, JudeENG | 2310 | 0 | -6.2 | ♔ |
| mDunnington, Angus JSCO | 2203 | 0 | -9.2 | ♚ |
| fVenkatesan, KavinIRL | 2291 | 1 | +13.2 | ♚ |
| cCollins, AdamIRL | 2300 | ½ | +3.4 | ♔ |
| Wafa, ShrookEGY | 2190 | 0 | -9.4 | ♔ |
| cLiu, JasonIRL | 2257 | 1 | +12.4 | ♔ |
2026-01STD2025 XTX Markets London Chess Classic OpenElo 2146
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| fCzopor, MaciejPOL | 2463 | 0 | -3 | ♔ |
| mLangheinrich, FerencGER | 2334 | 0 | -5.6 | ♚ |
| fSchmider, NiklasGER | 2423 | 0 | -3.8 | ♔ |
| Hng, Mei-En EmmanuelleSGP | 2125 | 1 | +8.8 | ♚ |
| Varney, ZoeENG | 2062 | ½ | -3 | ♔ |
| Farberov, MaximUSA | 2133 | 0 | -11 | ♚ |
| Khachatouri, SaroAUT | 2100 | 0 | -12 | ♔ |
| Gurevich, ArtemCAN | 2163 | 1 | +9.8 | ♚ |
| Hariharan, ShambaviENG | 1989 | ½ | -4.8 | ♚ |
2025-12STDLCU Armstrong Cup 2025-2026 Rounds 1-2Elo 2171
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| Kelbas, AnastasiyaUKR | 1777 | 1 | +1.8 | ♚ |
| cMelaugh, ShaneIRL | 2206 | ½ | +1 | ♚ |
2025-12STDLCU Armstrong Cup 2025-2026 Rounds 3-4Elo 2171
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| cFlynn, JacobIRL | 2218 | ½ | +1.4 | ♔ |
| Kamalakannan, ShrimanIRL | 2039 | ½ | -3.6 | ♔ |
2025-11STD2025-26 4NCL Division 4 Rounds 1-2Elo 2170
| Opponent | Elo | Res. | Δ Elo | ♟ |
|---|---|---|---|---|
| Williams, AnaENG | 1904 | 1 | +3.6 | ♔ |
| Nwachukwu, ChinoNGR | 1904 | 1 | +3.6 | ♔ |