Johan Klopper
Biographical information
| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Johan Karel•Klopper |
| Used name | Johan•Klopper |
| NOC |  Netherlands |
Referee
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2008 Summer Olympics | Water Polo (Aquatics) | NED |
Johan Klopper | ||||
| Water Polo, Men (Olympic) | Match #2 | Serbia — Spain | Referee | ||||
| Water Polo, Men (Olympic) | Match #9 | Australia — Canada | Referee | ||||
| Water Polo, Men (Olympic) | Match #12 | Hungary — Australia | Referee | ||||
| Water Polo, Men (Olympic) | Match #5 | Croatia — Serbia | Referee | ||||
| Water Polo, Men (Olympic) | Match #13 | Italy — Serbia | Referee |