O'Sullivan, Oisin
Identity
- Title
- —
- Gender
- M
- Year of birth
- 2000
- Federation
- Ireland
- FIDE ID
- 2518082
- National ID
- 19592
- FIDE (STD)
- 1720
- National (STD)
- 1769
- Peak FIDE
- 1720 (2026)
- Peak National
- 1769 (2026)
Tournament rating snapshot: June 28, 2026
Tournament status
Rank:
12
(initial)
→
19
(final)
(-7 ▼)
| Played | W | D | L | Score | |
|---|---|---|---|---|---|
| 2 | 1 | 0 | 1 | 1 | |
| 1 | 0 | 1 | 0 | ½ | |
| Total | 3 | 1 | 1 | 1 | 1½ |
| Performance | Played | Score | Opp. avg | TPR | Xp | +/− |
|---|---|---|---|---|---|---|
| FIDE | 3 | 1½ | 1735 | 1735 | 1.43 | 0 |
| National | 3 | 1½ | 1787 | 1787 | 1.42 | 0 |
Games
| Rd | Bd | Col | Opponent | Fed | Score | FIDE | National | TB1 | TB2 | TB3 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rating | Xp | Δ | Rating | Xp | Δ | |||||||||
| 1 | 5 | Hackett, Len | IRL | 0 | 1753 | 0.453 | -9.05 | 1799 | 0.457 | -9.14 | — | 0.00 | — | |
| 2 | 6 | Scully, Eoin | IRL | ½ | 1720 | 0.500 | 0.00 | 1779 | 0.486 | +0.29 | — | 0.25 | — | |
| 3 | 5 | Johannesson, Bjorn | NED | 1 | 1733 | 0.481 | +10.37 | 1782 | 0.481 | +10.37 | — | 1.00 | — | |
| Σ / μ | Σ 1½ | μ 1735 | Σ 1.43 | Σ +1.32 | μ 1787 | Σ 1.42 | Σ +1.52 | 1.25 | ||||||
TB1: Direct Encounter (DE)
TB2: Sonneborn-Berger (SB)
TB3: Koya System (KS)