| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
1972 Summer Olympics
|
Basketball (Basketball) |
 NED |
|
|
|
Piet Leegwater |
|
|
Basketball, Men
(Olympic)
|
|
Semi-Finals |
Soviet Union — Cuba |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Classification Round 9-12 |
Australia — West Germany |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group A |
Czechoslovakia — Japan |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group A |
United States — Cuba |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group A |
Australia — Brazil |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group B |
Yugoslavia — Philippines |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group B |
Italy — Poland |
Referee |
|
|
|
1976 Summer Olympics
|
Basketball (Basketball) |
NED |
|
|
|
Piet Leegwater |
|
|
Basketball, Men
(Olympic)
|
|
Final Round |
United States — Yugoslavia |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group A |
Canada — Japan |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group A |
Cuba — Mexico |
Referee |
|
|
|
Basketball, Men
(Olympic)
|
|
Group B |
Yugoslavia — Czechoslovakia |
Referee |
|
|
|
Basketball, Women
(Olympic)
|
|
Round-Robin |
Japan — United States |
Referee |
|
|
|
Basketball, Women
(Olympic)
|
|
Round-Robin |
Soviet Union — Bulgaria |
Referee |
|
|
|
Basketball, Women
(Olympic)
|
|
Round-Robin |
Bulgaria — Canada |
Referee |
|
|