| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
1968 Summer Olympics
|
Water Polo (Aquatics) |
 FRG |
|
|
|
Walter Schneider |
|
|
Water Polo, Men
(Olympic)
|
|
Match 13/14 |
Brazil — Greece |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #12 |
Netherlands — Japan |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #17 |
East Germany — Japan |
Referee |
|
|
|
1972 Summer Olympics
|
Water Polo (Aquatics) |
FRG |
|
|
|
Walter Schneider |
|
|
Water Polo, Men
(Olympic)
|
|
Match #10 |
Bulgaria — Cuba |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #14 |
United States — Yugoslavia |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #2 |
Soviet Union — Italy |
Referee |
|
|