| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
1972 Summer Olympics
|
Equestrian Jumping (Equestrian) |
USA |
|
|
|
Donald Thackeray |
|
|
Individual, Open
(Olympic)
|
|
Final Standings |
|
Judge #2 |
|
|
|
Team, Open
(Olympic)
|
|
Final Standings |
|
Judge #2 |
|
|
|
1976 Summer Olympics
|
Equestrian Dressage (Equestrian) |
USA |
|
|
|
Donald Thackeray |
|
|
Individual, Open
(Olympic)
|
|
Grand Prix |
|
Judge H |
|
|
|
Individual, Open
(Olympic)
|
|
Grand Prix Special |
|
Judge E |
|
|
|
Team, Open
(Olympic)
|
|
Final Standings |
|
Judge H |
|
|
|
1984 Summer Olympics
|
Equestrian Dressage (Equestrian) |
USA |
|
|
|
Donald Thackeray |
|
|
Individual, Open
(Olympic)
|
|
Grand Prix |
|
Judge H |
|
|
|
Individual, Open
(Olympic)
|
|
Grand Prix Special |
|
Judge B |
|
|
|
Team, Open
(Olympic)
|
|
Final Standings |
|
Judge H |
|
|
|
1988 Summer Olympics
|
Equestrian Dressage (Equestrian) |
USA |
|
|
|
Donald Thackeray |
|
|
Individual, Open
(Olympic)
|
|
Grand Prix |
|
Judge B |
|
|
|
Individual, Open
(Olympic)
|
|
Grand Prix Special |
|
Judge H |
|
|
|
Team, Open
(Olympic)
|
|
Final Standings |
|
Judge B |
|
|