| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
1972 Summer Olympics
|
Water Polo (Aquatics) |
 JPN |
|
|
|
Nobuhiko Kiyohara |
|
|
Water Polo, Men
(Olympic)
|
|
Match #2 |
Netherlands — Bulgaria |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #8 |
Yugoslavia — Mexico |
Referee |
|
|
|
1980 Summer Olympics
|
Water Polo (Aquatics) |
JPN |
|
|
|
Nobuhiko Kiyohara |
|
|
Water Polo, Men
(Olympic)
|
|
Match #6 |
Soviet Union — Spain |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #11 |
Italy — Greece |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #2 |
Netherlands — Greece |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #3 |
Yugoslavia — Bulgaria |
Referee |
|
|
|
Water Polo, Men
(Olympic)
|
|
Match #5 |
Yugoslavia — Australia |
Referee |
|
|