| Games | 
Sport (Discipline) / Event | 
NOC / Team | 
Phase | 
Unit | 
Role | 
As | 
 | 
| 
1948 Summer Olympics
 | 
Boxing | 
 SRI | 
 | 
 | 
 | 
Donald Obeysekera | 
 | 
 | 
Flyweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Lightweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Welterweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Middleweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Light-Heavyweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Heavyweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
| 
1952 Summer Olympics
 | 
Boxing | 
 SRI | 
 | 
 | 
 | 
Donald Obeysekera | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Lightweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Light-Welterweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Welterweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Light-Middleweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Middleweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Light-Heavyweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Flyweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
 | 
Heavyweight, Men
(Olympic)
 | 
 | 
Final Standings | 
 | 
Judge / Referee | 
 | 
 | 
| 
1960 Summer Olympics
 | 
Boxing | 
 SRI | 
 | 
 | 
 | 
Donald Obeysekera | 
 | 
 | 
Flyweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Manfred Homberg — Danny Lee | 
Judge #1 | 
 | 
 | 
 | 
Flyweight, Men
(Olympic)
 | 
 | 
Match #8 | 
Abdel Moneim El-Gindy — Paolo Curcetti | 
Judge #1 | 
 | 
 | 
 | 
Flyweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Karimu Young — Adam McLean | 
Judge #4 | 
 | 
 | 
 | 
Flyweight, Men
(Olympic)
 | 
 | 
Match #5 | 
Manfred Homberg — Henryk Kukier | 
Judge #4 | 
 | 
 | 
 | 
Flyweight, Men
(Olympic)
 | 
 | 
Match #32 | 
Paolo Curcetti — Frank Kisekka | 
Judge #4 | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Match #1 | 
Thein Myint — Muhammad Nasir | 
Judge #3 | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Match #5 | 
Ollie Taylor — Nicolae Puiu | 
Judge #4 | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Match #8 | 
Jerry Armstrong — Paddy Kenny | 
Judge #4 | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Oleg Grigoryev — Waldomiro Pinto | 
Judge #5 | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Match #6 | 
Brunon Bendig — John Sentongo | 
Judge #1 | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Match #13 | 
Primo Zamparini — Panagiotis Kostarellos | 
Referee | 
 | 
 | 
 | 
Bantamweight, Men
(Olympic)
 | 
 | 
Match #15 | 
Paddy Kenny — Emile Anner | 
Judge #4 | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Match #1 | 
William Meyers — Hsu Teng-Yun | 
Judge #4 | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Ernst Chervet — Juan Díaz | 
Judge #3 | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Match #6 | 
Jorma Limmonen — Phil Lundgren | 
Judge #5 | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Match #2 | 
Werner Kirsch — Mohamed Hassan | 
Judge #5 | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Match #8 | 
Abe Bekker — José Luis Biescas | 
Judge #4 | 
 | 
 | 
 | 
Featherweight, Men
(Olympic)
 | 
 | 
Match #10 | 
Jorma Limmonen — Børge Krogh | 
Judge #4 | 
 | 
 | 
 | 
Lightweight, Men
(Olympic)
 | 
 | 
Match #1 | 
Dick McTaggart — Eddie Blay | 
Judge #3 | 
 | 
 | 
 | 
Lightweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Ferenc Kellner — Jacques Cotot | 
Judge #5 | 
 | 
 | 
 | 
Lightweight, Men
(Olympic)
 | 
 | 
Match #6 | 
Kazimierz Paździor — Taha Abdul Karim | 
Judge #5 | 
 | 
 | 
 | 
Lightweight, Men
(Olympic)
 | 
 | 
Match #12 | 
Abel Laudonio — Jozef Töre | 
Judge #2 | 
 | 
 | 
 | 
Light-Welterweight, Men
(Olympic)
 | 
 | 
Match #1 | 
Sayed El-Nahas — Jaggie van Staden | 
Judge #3 | 
 | 
 | 
 | 
Light-Welterweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Bohumil Němeček — Bernie Meli | 
Judge #2 | 
 | 
 | 
 | 
Light-Welterweight, Men
(Olympic)
 | 
 | 
Match #4 | 
Bobby Kelsey — Vazik Ghazarian | 
Judge #2 | 
 | 
 | 
 | 
Light-Welterweight, Men
(Olympic)
 | 
 | 
Match #7 | 
Luis Aranda — Rogelio Reyes | 
Judge #2 | 
 | 
 | 
 | 
Light-Welterweight, Men
(Olympic)
 | 
 | 
Match #13 | 
Khalid Al-Karkhi — Grace Sseruwagi | 
Judge #5 | 
 | 
 | 
 | 
Light-Welterweight, Men
(Olympic)
 | 
 | 
Match #31 | 
Raoul Sarrazin — François Sowa | 
Judge #5 | 
 | 
 | 
 | 
Welterweight, Men
(Olympic)
 | 
 | 
Match #7 | 
Jim Lloyd — Vasile Neagu | 
Judge #3 | 
 | 
 | 
 | 
Welterweight, Men
(Olympic)
 | 
 | 
Match #1 | 
Yury Radonyak — Bruno Guse | 
Judge #1 | 
 | 
 | 
 | 
Welterweight, Men
(Olympic)
 | 
 | 
Match #4 | 
Andrés Navarro — Tongchai Teptani | 
Judge #3 | 
 | 
 | 
 | 
Welterweight, Men
(Olympic)
 | 
 | 
Match #13 | 
Jim Lloyd — Mohamed Faragalla | 
Judge #2 | 
 | 
 | 
 | 
Light-Middleweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Carmelo Bossi — Souleymane Diallo | 
Judge #1 | 
 | 
 | 
 | 
Light-Middleweight, Men
(Olympic)
 | 
 | 
Match #2 | 
Celedonio Lima — Jeffrey Alleyne | 
Judge #5 | 
 | 
 | 
 | 
Light-Middleweight, Men
(Olympic)
 | 
 | 
Match #5 | 
Souleymane Diallo — Nicolae Stoenescu | 
Judge #5 | 
 | 
 | 
 | 
Light-Middleweight, Men
(Olympic)
 | 
 | 
Match #11 | 
Pedro Votta — Rolf Caroli | 
Judge #4 | 
 | 
 | 
 | 
Light-Middleweight, Men
(Olympic)
 | 
 | 
Match #14 | 
Billy Fisher — Roy Askevold | 
Judge #4 | 
 | 
 | 
 | 
Middleweight, Men
(Olympic)
 | 
 | 
Match #2 | 
Hans Büchi — Roy Addison | 
Judge #3 | 
 | 
 | 
 | 
Middleweight, Men
(Olympic)
 | 
 | 
Match #4 | 
Eddie Crook — Peter Odhiambo | 
Judge #5 | 
 | 
 | 
 | 
Middleweight, Men
(Olympic)
 | 
 | 
Match #7 | 
Tadeusz Walasek — Taffy Davies | 
Judge #1 | 
 | 
 | 
 | 
Middleweight, Men
(Olympic)
 | 
 | 
Match #13 | 
Tadeusz Walasek — Sultan Mahmoud | 
Judge #3 | 
 | 
 | 
 | 
Middleweight, Men
(Olympic)
 | 
 | 
Match #15 | 
Eamonn McKeon — Mohamed Ben Gandoubi | 
Judge #4 | 
 | 
 | 
 | 
Light-Heavyweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Giulio Saraudi — Rafael Gargiulo | 
Judge #2 | 
 | 
 | 
 | 
Light-Heavyweight, Men
(Olympic)
 | 
 | 
Match #1 | 
Gennady Shatkov — Ray Cillien | 
Referee | 
 | 
 | 
 | 
Light-Heavyweight, Men
(Olympic)
 | 
 | 
Match #3 | 
Tony Madigan — Lars-Olof Norling | 
Judge #4 | 
 | 
 | 
 | 
Light-Heavyweight, Men
(Olympic)
 | 
 | 
Match #8 | 
Petar Spasov — Matti Aho | 
Judge #3 | 
 | 
 | 
 | 
Light-Heavyweight, Men
(Olympic)
 | 
 | 
Match #15 | 
Petar Spasov — Johnny Ould | 
Judge #5 | 
 | 
 | 
 | 
Heavyweight, Men
(Olympic)
 | 
 | 
Match #1 | 
Josef Němec — Dave Thomas | 
Judge #5 | 
 | 
 |