| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Karl-Heinz•Trapper |
| Used name | Karl-Heinz•Trapper |
| NOC | Germany West Germany |
| Nationality | West Germany |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | Nationality | As | |
|---|---|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Hockey | GER |
FRG |
Karl-Heinz Trapper | ||||
| Hockey, Men (Olympic) | Group A | Australia — Great Britain | Umpire 2 | |||||
| Hockey, Men (Olympic) | Group A | Pakistan — Kenya | Umpire 2 | |||||
| Hockey, Men (Olympic) | Group A | Pakistan — Great Britain | Umpire 2 | |||||
| Hockey, Men (Olympic) | Group A | Pakistan — Australia | Umpire 2 | |||||
| 1968 Summer Olympics | Hockey | FRG |
Karl-Heinz Trapper | |||||
| Hockey, Men (Olympic) | Group B | Pakistan — Netherlands | Umpire 1 | |||||
| Hockey, Men (Olympic) | Group B | Kenya — Malaysia | Umpire 1 | |||||
| Hockey, Men (Olympic) | Group B | Argentina — Malaysia | Umpire 2 |