| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Hamish•Jamson |
| Used name | Hamish•Jamson |
| NOC | Great Britain |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2012 Summer Olympics | Hockey | GBR |
Hamish Jamson | ||||
| Hockey, Men (Olympic) | Match #1 | Germany — Australia | Umpire 2 | ||||
| Hockey, Men (Olympic) | Match #12 | Spain — Argentina | Umpire 1 | ||||
| Hockey, Men (Olympic) | Match #1 | Republic of Korea — New Zealand | Umpire 1 | ||||
| Hockey, Men (Olympic) | Match #4 | Netherlands — Belgium | Umpire 1 | ||||
| Hockey, Men (Olympic) | Match #15 | Germany — New Zealand | Umpire 2 | ||||
| Hockey, Men (Olympic) | Match 1/2 | Germany — Netherlands | Reserve | ||||
| Hockey, Men (Olympic) | Match #7 | Australia — Argentina | Video Umpire | ||||
| Hockey, Men (Olympic) | Match #7 | Netherlands — New Zealand | Video Umpire | ||||
| Hockey, Men (Olympic) | Match #14 | Belgium — India | Video Umpire |