| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Masao•Hasegawa |
| Used name | Masao•Hasegawa |
| NOC |  Japan |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 1964 Winter Olympics | Figure Skating (Skating) | JPN |
Masao Hasegawa | ||||
| Singles, Women (Olympic) | Final Standings | Judge #4 | |||||
| Singles, Women (Olympic) | Compulsory Figures | Judge #4 | |||||
| Singles, Women (Olympic) | Free Skating | Judge #4 | |||||
| 1968 Winter Olympics | Figure Skating (Skating) | JPN |
Masao Hasegawa | ||||
| Singles, Women (Olympic) | Final Standings | Judge #7 | |||||
| Singles, Women (Olympic) | Compulsory Figures | Judge #7 | |||||
| Singles, Women (Olympic) | Free Skating | Judge #7 |
