| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
2008 Summer Olympics
|
Hockey |
 RSA |
|
|
|
Gary Simmonds |
|
|
Hockey, Men
(Olympic)
|
|
Final Round |
New Zealand — Pakistan |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Belgium — People's Republic of China |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Netherlands — Great Britain |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Australia — Pakistan |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Canada — Great Britain |
Umpire 2 |
|
|
|
2012 Summer Olympics
|
Hockey |
RSA |
|
|
|
Gary Simmonds |
|
|
Hockey, Men
(Olympic)
|
|
Final Round |
Australia — Great Britain |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Semi-Finals |
Germany — Australia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Australia — Pakistan |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Netherlands — Belgium |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Germany — India |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Republic of Korea — India |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Spain — Great Britain |
Video Umpire |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Republic of Korea — New Zealand |
Video Umpire |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Netherlands — India |
Reserve |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Germany — Republic of Korea |
Video Umpire |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
New Zealand — Belgium |
Video Umpire |
|
|