| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
2004 Summer Olympics
|
Hockey |
 GER |
|
|
|
Christian Blasch |
|
|
Hockey, Men
(Olympic)
|
|
Classification Round 9-12 |
Great Britain — Argentina |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Spain — Great Britain |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Republic of Korea — Egypt |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Argentina — Australia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
New Zealand — South Africa |
Umpire 1 |
|
|
|
2008 Summer Olympics
|
Hockey |
GER |
|
|
|
Christian Blasch |
|
|
Hockey, Men
(Olympic)
|
|
Final Round |
Australia — Netherlands |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Semi-Finals |
Spain — Australia |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Spain — New Zealand |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Australia — Canada |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Great Britain — South Africa |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Australia — Netherlands |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group B |
Australia — Great Britain |
Umpire 1 |
|
|
|
2012 Summer Olympics
|
Hockey |
GER |
|
|
|
Christian Blasch |
|
|
Hockey, Men
(Olympic)
|
|
Final Round |
Australia — Great Britain |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Semi-Finals |
Netherlands — Great Britain |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Great Britain — Argentina |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Australia — Spain |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Great Britain — Australia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Australia — Pakistan |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
South Africa — Great Britain |
Reserve |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Great Britain — Pakistan |
Reserve |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Spain — South Africa |
Reserve |
|
|
|
2016 Summer Olympics
|
Hockey |
GER |
|
|
|
Christian Blasch |
|
|
Hockey, Men
(Olympic)
|
|
Final Round |
Argentina — Belgium |
Umpire 2 |
|
|
|
Hockey, Men
(Olympic)
|
|
Semi-Finals |
Belgium — Netherlands |
Reserve |
|
|
|
Hockey, Men
(Olympic)
|
|
Quarter-Finals |
Netherlands — Australia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Australia — New Zealand |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Spain — Australia |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Spain — New Zealand |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Belgium — Spain |
Umpire 1 |
|
|
|
Hockey, Men
(Olympic)
|
|
Group A |
Spain — Great Britain |
Umpire 1 |
|
|
