| Roles | Competed in Youth Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Martyn James•Walton | |
| Used name | Martyn•Walton | |
| Born | 17 August 1997 | |
| NOC | Great Britain |  GBR |
| Medals | YOG |
| Gold | 1 |
| Silver | 0 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2014 Summer Youth Olympics | Swimming (Aquatics) | GBR |
Martyn Walton | |||
| 4 × 100 metres Freestyle Relay, Mixed Youth (YOG) | Great Britain | 6 | ||||
| 200 metres Freestyle, Boys (YOG) | 11 | |||||
| 400 metres Freestyle, Boys (YOG) | 24 | |||||
| 4 × 100 metres Freestyle Relay, Boys (YOG) | Great Britain | 1 | Gold | |||
| 200 metres Individual Medley, Boys (YOG) | 17 |
