| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Marcus•Halliday |
| Used name | Marcus•Halliday |
| Born | 15 July 1937 in Liverpool, England (GBR) |
| Measurements | 177 cm / 80 kg |
| Affiliations | British Army, (GBR) |
| NOC | Great Britain |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Winter Olympics | Biathlon | GBR |
Marcus Halliday | |||
| 20 kilometres, Men (Olympic) | 59 | |||||
| 4 × 7.5 kilometres Relay, Men (Olympic) | Great Britain | 12 |