| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
2004 Summer Olympics
|
Hockey |
 JPN |
|
|
|
Chieko Soma |
|
|
Hockey, Women
(Olympic)
|
|
Final Round |
Australia — New Zealand |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Argentina — New Zealand |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
New Zealand — Spain |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
Germany — Australia |
Umpire 2 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
Netherlands — Germany |
Umpire 1 |
|
|
|
2008 Summer Olympics
|
Hockey |
JPN |
|
|
|
Chieko Soma |
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Australia — Spain |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Netherlands — People's Republic of China |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Australia — People's Republic of China |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
Argentina — Germany |
Umpire 2 |
|
|
|
2012 Summer Olympics
|
Hockey |
JPN |
|
|
|
Chieko Soma |
|
|
Hockey, Women
(Olympic)
|
|
Final Round |
Great Britain — New Zealand |
Umpire 2 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Netherlands — People's Republic of China |
Umpire 2 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Netherlands — Great Britain |
Umpire 2 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
New Zealand — South Africa |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
Argentina — Germany |
Umpire 2 |
|
|
|
Hockey, Women
(Olympic)
|
|
Semi-Finals |
Argentina — Great Britain |
Reserve |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
People's Republic of China — Republic of Korea |
Reserve |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Great Britain — Republic of Korea |
Reserve |
|
|
|
2016 Summer Olympics
|
Hockey |
JPN |
|
|
|
Chieko Soma |
|
|
Hockey, Women
(Olympic)
|
|
Semi-Finals |
Netherlands — Germany |
Reserve |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
New Zealand — Republic of Korea |
Umpire 2 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
New Zealand — Spain |
Reserve |
|
|
|
Hockey, Women
(Olympic)
|
|
Group A |
Netherlands — New Zealand |
Reserve |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
Great Britain — India |
Umpire 1 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
United States — India |
Umpire 2 |
|
|
|
Hockey, Women
(Olympic)
|
|
Group B |
Argentina — India |
Umpire 1 |
|
|