| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Gregory John "Greg"•Dayman | |
| Used name | Greg•Dayman | |
| Born | 21 February 1947 in Wellington, Wellington |  NZL |
| Measurements | 188 cm / 74 kg | |
| Affiliations | Auckland University Hockey — Auckland, Auckland | NZL |
| NOC | New Zealand | NZL |
| Medals | OG |
| Gold | 1 |
| Silver | 0 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1972 Summer Olympics | Hockey | NZL |
Greg Dayman | |||
| Hockey, Men (Olympic) | New Zealand | 9 | ||||
| 1976 Summer Olympics | Hockey | NZL |
Greg Dayman | |||
| Hockey, Men (Olympic) | New Zealand | 1 | Gold |
