| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Martens•Rowsing |
| Used name | Martens•Rowsing |
| NOC |  Singapore |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 1972 Summer Olympics | Hockey | SGP |
Martens Rowsing | ||||
| Hockey, Men (Olympic) | Match #18 | Pakistan — Argentina | Umpire 2 | ||||
| Hockey, Men (Olympic) | Match #4 | Great Britain — Mexico | Umpire 2 |
