| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | John•Treacy |
| Used name | John•Treacy |
| Born | 4 June 1957 in Villierstown, Dungarwan, Waterford (IRL) |
| Measurements | 175 cm / 59 kg |
| Affiliations | Waterford Athletics Club / Deise Athletics Club / New Balance Track Club, USA |
| NOC | Ireland |
| Medals | OG |
| Gold | 0 |
| Silver | 1 |
| Bronze | 0 |
| Total | 1 |
Personal Bests: 5000 – 13:16.81 (1984); 10000 – 27:48.7 (1980); Mar – 2-09:15 (1988).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1980 Summer Olympics | Athletics | IRL |
John Treacy | |||
| 5,000 metres, Men (Olympic) | 7 | |||||
| 10,000 metres, Men (Olympic) | AC h1 r1/2 | |||||
| Marathon, Men (Olympic) | ||||||
| 1984 Summer Olympics | Athletics | IRL |
John Treacy | |||
| 10,000 metres, Men (Olympic) | 9 | |||||
| Marathon, Men (Olympic) | 2 | Silver | ||||
| 1988 Summer Olympics | Athletics | IRL |
John Treacy | |||
| Marathon, Men (Olympic) | ||||||
| 1992 Summer Olympics | Athletics | IRL |
John Treacy | |||
| Marathon, Men (Olympic) | 51 |