| Games |
Sport (Discipline) / Event |
NOC / Team |
Phase |
Unit |
Role |
As |
|
|
1968 Summer Olympics
|
Volleyball (Volleyball) |
 BRA |
|
|
|
Sergio Freire |
|
|
Volleyball, Men
(Olympic)
|
|
Match #18 |
East Germany — Belgium |
Referee #1 |
|
|
|
Volleyball, Men
(Olympic)
|
|
Match #28 |
East Germany — United States |
Referee #2 |
|
|
|
Volleyball, Men
(Olympic)
|
|
Match #31 |
Poland — Bulgaria |
Referee #2 |
|
|
|
Volleyball, Women
(Olympic)
|
|
Match #3 |
Soviet Union — Czechoslovakia |
Referee #2 |
|
|
|
Volleyball, Women
(Olympic)
|
|
Match #12 |
Soviet Union — Republic of Korea |
Referee #1 |
|
|
|
Volleyball, Women
(Olympic)
|
|
Match #24 |
Japan — Republic of Korea |
Referee #2 |
|
|
|
Volleyball, Women
(Olympic)
|
|
Match #26 |
Republic of Korea — Czechoslovakia |
Referee #2 |
|
|