| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
1984 Summer Olympics
|
Hockey |
 JPN |
|
|
|
Iwo Sakaida |
|
|
Hockey, Men
(Olympic)
|
|
Final Round |
Great Britain — Australia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Classification Round 5-8 |
India — New Zealand |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Australia — Malaysia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
West Germany — Malaysia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Netherlands — New Zealand |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Netherlands — Kenya |
Umpire 1 |
|
|
|
1988 Summer Olympics
|
Hockey |
JPN |
|
|
|
Iwo Sakaida |
|
|
Hockey, Men
(Olympic)
|
|
Classification Round 9-12 |
Republic of Korea — Kenya |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Pakistan — Kenya |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Netherlands — Pakistan |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
India — Republic of Korea |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
India — Canada |
Umpire 2 |
|
|