| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Isao•Ono | |
| Used name | Isao•Ono | |
| Original name | 大野•公 | |
| Born | 24 April 1942 in ?, Hokkaido |  JPN |
| Measurements | 165 cm / 54 kg | |
| Affiliations | Japan Ground Self-Defense Force - Cold Weather Combat Training Unit — ? | JPN |
| NOC | Japan | JPN |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Winter Olympics | Biathlon | JPN |
Isao Ono | |||
| Individual, Men (Olympic) | 33 | |||||
| Relay, Men (Olympic) | Japan | 13 | ||||
| 1972 Winter Olympics | Biathlon | JPN |
Isao Ono | |||
| Individual, Men (Olympic) | 25 | |||||
| Relay, Men (Olympic) | Japan | 8 | ||||
| 1976 Winter Olympics | Biathlon | JPN |
Isao Ono | |||
| Relay, Men (Olympic) | Japan | 14 |
