O'Callaghan, Michael

Identity
Title
Gender
M
Year of birth
1962
Federation
Ireland
FIDE ID
2528185
National ID
18450
FIDE (STD)
1523
National (STD)
1587
Peak FIDE
1523 (2026)
Peak National
1587 (2026)
Tournament rating snapshot: June 5, 2026
Tournament status
Rank: 50 (initial) 30 (final) (+20 ▲)
Played W D L Score
1 0 0 1 0
0 0 0 0 0
Total 1 0 0 1 0
Performance Played Score Opp. avg TPR Xp +/−
National 1 0 1352 552 0.79 1-
Games
Rd Bd Col Opponent Fed Score FIDE National TB1TB2
Rating Xp Δ Rating Xp Δ
1 23 Rosenmai, James IRL 0 1352 0.795 -31.78 1.00 0.00
Σ / μ Σ 0 μ 1352 Σ 0.79 Σ -31.78
TB1: Buchholz — cut lowest 1 (BH/C1)
TB2: Sonneborn-Berger — cut lowest 1 (SB/C1)