Viliam Koller
Biographical information
| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Viliam•Koller |
| Used name | Viliam•Koller |
| NOC |  Czechia |
Referee
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 1992 Summer Olympics | Basketball (Basketball) | CZE |
Viliam Koller | ||||
| Basketball, Men (Olympic) | Group B | Unified Team — Venezuela | Referee | ||||
| Basketball, Men (Olympic) | Group B | Lithuania — Puerto Rico | Referee | ||||
| Basketball, Men (Olympic) | Group A | United States — Brazil | Referee | ||||
| Basketball, Men (Olympic) | Classification Round 9-12 | Angola — People's Republic of China | Referee | ||||
| Basketball, Men (Olympic) | Final Round | Brazil — Australia | Referee |