| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As |  | 
| 2000 Summer Olympics | Water Polo (Aquatics) |  SLO |  |  |  | Boris Margeta |  | 
|  | Water Polo, Men
(Olympic) |  | Match #1 | Russian Federation — United States | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #6 | Kazakhstan — Netherlands | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #2 | Spain — Kazakhstan | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #4 | Italy — Russian Federation | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #9 | Australia — Slovakia | Goal Judge |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #10 | Russian Federation — Spain | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #12 | Italy — Australia | Goal Judge |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #15 | Australia — Spain | Goal Judge |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #1 | Australia — Russian Federation | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #5 | Canada — United States | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #10 | Australia — United States | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #13 | Australia — Canada | Goal Judge |  |  | 
| 2004 Summer Olympics | Water Polo (Aquatics) |  SLO |  |  |  | Boris Margeta |  | 
|  | Water Polo, Men
(Olympic) |  | Match 7/8 | United States — Italy | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #8 | Hungary — United States | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #14 | Hungary — Russian Federation | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #2 | Spain — Italy | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #6 | Greece — Spain | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match 1/2 | Italy — Greece | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #2 | Italy — Hungary | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #3 | Australia — Kazakhstan | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #5 | United States — Russian Federation | Referee |  |  | 
| 2008 Summer Olympics | Water Polo (Aquatics) |  SLO |  |  |  | Boris Margeta |  | 
|  | Water Polo, Men
(Olympic) |  | Match 3/4 | Serbia — Montenegro | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #2 | United States — Serbia | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #2 | Hungary — Montenegro | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #5 | Spain — Australia | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #8 | Montenegro — Greece | Referee |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #14 | United States — Germany | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #1 | United States — Australia | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #6 | Italy — People's Republic of China | Referee |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #2 | Australia — Greece | Referee |  |  | 
| 2012 Summer Olympics | Water Polo (Aquatics) |  SLO |  |  |  | Boris Margeta |  | 
|  | Water Polo, Men
(Olympic) |  | Match #3 | Italy — Australia | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #4 | Croatia — Spain | Referee #1 |  |  | 
| 2016 Summer Olympics | Water Polo (Aquatics) |  SLO |  |  |  | Boris Margeta |  | 
|  | Water Polo, Men
(Olympic) |  | Match 5/6 | Hungary — Greece | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #4 | Italy — Greece | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #2 | Greece — Spain | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #5 | Australia — Hungary | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #11 | Greece — Brazil | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #1 | Croatia — United States | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #9 | Spain — Croatia | Referee #1 |  |  | 
|  | Water Polo, Men
(Olympic) |  | Match #14 | United States — Italy | Referee #1 |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #4 | Italy — Australia | Referee #2 |  |  | 
|  | Water Polo, Women
(Olympic) |  | Match #5 | Spain — People's Republic of China | Referee #1 |  |  |