| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | J.•Klazema |
| Used name | J.•Klazema |
| NOC |  Netherlands |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 1960 Summer Olympics | Artistic Gymnastics (Gymnastics) | NED |
J. Klazema | ||||
| Uneven Bars, Women (Olympic) | Final Standings | Final Standings | Judge - Uneven Parallel Bars (Compulsory Exercise) | ||||
| Balance Beam, Women (Olympic) | Final Standings | Final Standings | Judge - Balance Beam (Optional Exercise) |
