| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
2016 Summer Olympics
|
Tennis |
 GBR |
|
|
|
Alison Hughes |
|
|
Singles, Men
(Olympic)
|
|
Match #6 |
Kei Nishikori — Andrej Martin |
Chair Umpire |
|
|
|
Singles, Men
(Olympic)
|
|
Match #5 |
Roberto Bautista — Andrey Kuznetsov |
Chair Umpire |
|
|
|
Doubles, Men
(Olympic)
|
|
Match 1/2 |
Spain 2 — Romania |
Chair Umpire |
|
|
|
Singles, Women
(Olympic)
|
|
Match #5 |
Madison Keys — Carla Suárez |
Chair Umpire |
|
|
|
Singles, Women
(Olympic)
|
|
Match #12 |
Darya Kasatkina — Zheng Saisai |
Chair Umpire |
|
|
|
Singles, Women
(Olympic)
|
|
Match #2 |
Alizé Cornet — Johanna Larsson |
Chair Umpire |
|
|
|
Doubles, Women
(Olympic)
|
|
Match #5 |
Spain 1 — Brazil |
Chair Umpire |
|
|
|
2020 Summer Olympics
|
Tennis |
GBR |
|
|
|
Alison Hughes |
|
|
Singles, Men
(Olympic)
|
|
Match 1/2 |
Alexander Zverev — Karen Khachanov |
Chair Umpire |
|
|
|
Singles, Men
(Olympic)
|
|
Match #12 |
Stefanos Tsitsipas — Frances Tiafoe |
Chair Umpire |
|
|
|
Singles, Men
(Olympic)
|
|
Match #18 |
Tomáš Macháč — João Sousa |
Chair Umpire |
|
|
|
Singles, Men
(Olympic)
|
|
Match #21 |
Ugo Humbert — Pablo Andújar |
Chair Umpire |
|
|
|
Doubles, Men
(Olympic)
|
|
Match #3 |
New Zealand — Colombia |
Chair Umpire |
|
|
|
Singles, Women
(Olympic)
|
|
Match #13 |
Paula Badosa — Iga Świątek |
Chair Umpire |
|
|
|
Singles, Women
(Olympic)
|
|
Match #32 |
Naomi Osaka — Zheng Saisai |
Chair Umpire |
|
|