| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Seamus Patrick•McGrath | 
| Used name | Seamus•McGrath | 
| Born | 3 May 1976 in Mississauga, Ontario (CAN) | 
| Measurements | 176 cm / 62 kg | 
| Affiliations | Haro-Lee Dungarees | 
| NOC |   Canada | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2004 Summer Olympics | Cycling Mountain Bike (Cycling) |  CAN | 
Seamus McGrath | |||
| Cross-Country, Men (Olympic) | 9 | |||||
| 2008 Summer Olympics | Cycling Mountain Bike (Cycling) |  CAN | 
Seamus McGrath | |||
| Cross-Country, Men (Olympic) | 44 | 
Date of birth also seen as 5 March 1976. After checking multiple sources, we feel that the DOB listed above, which is found in Commonwealth Games data, is likely correct.