| Roles | Referee | |
|---|---|---|
| Sex | Male | |
| Full name | John William•Waldow | |
| Used name | John•Waldow | |
| Born | 2 September 1964 in ? |  CAN |
| NOC | New Zealand |  NZL |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2020 Summer Olympics | Water Polo (Aquatics) | NZL |
John Waldow | ||||
| Water Polo, Men (Olympic) | Match #12 | Greece — South Africa | Referee #1 | ||||
| Water Polo, Men (Olympic) | Match #15 | Japan — South Africa | Referee #1 | ||||
| Water Polo, Women (Olympic) | Match #5 | Canada — South Africa | Referee #2 |
