John Costello
Country
IOM
Birth Year
1966
Gender
M
Title
FIDE ID
451819
FIDE Rating
1806
FIDE Rating Graph
FIDE supplement history through 2026-10. Ranking lists update separately.
Available Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-02 (UTC).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-09-27 | 46th Olympiad 2026 | Samarkand UZB | 11.85 | Kabamwanishi,Mashala | Costello,John | 1-0 | 52 | Open |
| 2 | 2026-09-26 | 46th Olympiad 2026 | Samarkand UZB | 10.86 | Costello,John | Henry Marwa Michael | 0-1 | 71 | Open |
| 3 | 2026-09-25 | 46th Olympiad 2026 | Samarkand UZB | 9.93 | Costello,John | Delrieu,Marc | 1/2-1/2 | 48 | Open |
| 4 | 2026-09-24 | 46th Olympiad 2026 | Samarkand UZB | 8.87 | Abdou,Mohamed | Costello,John | 0-1 | 29 | Open |
| 5 | 2026-09-23 | 46th Olympiad 2026 | Samarkand UZB | 7.89 | Ngwenya Kwanele Mangaliso | Costello,John | 0-1 | 50 | Open |
© 2024-2026 EloTracker