Oisin O`cuilleanain vs Jason Liu
Oisin O`cuilleanain (22, IRL) and Jason Liu (17, FM, IRL) have met 7 times in classical OTB plus 9 rapid/blitz games. O`cuilleanain leads the classical series 4–2 (1 draw). With current classical ratings of 2197 and 2252, the Elo model gives Liu a 40% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2197 vs 2252 (Δ -55)
With Oisin O`cuilleanain as white
34% Oisin26% draw40% Jason
With Jason Liu as white
27% Oisin21% draw52% Jason
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Oisin O`cuilleanain | Jason Liu | |
|---|---|---|
| Current rating (STD) | 2197 | 2252 |
| Peak rating | 2197 · May 2026 | 2268 · Nov 2025 |
| Peak age | 22 | 16 |
| World rank now | #8,326 | #5,745 |
| World rank peak | #8,326 | #5,065 |
| Federation rank now | #24 | #17 |
| Games (career, STD) | 491 | 356 |
| Months active | 82 | 58 |
| % white wins | 57% | 50% |
| % black wins | 49% | 52% |
| TPR last 12m (STD) | 1684 | 1900 |
| Activity 12m (games) | 194 | 172 |
Best Win
Oisin O`cuilleanain
Jason Liu
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (16)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Oisin O`cuilleanain
Jason Liu