| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Greg•Oros |
| Used name | Greg•Oros |
| NOC | United States |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2004 Summer Olympics | Baseball (Baseball/Softball) | USA |
Greg Oros | ||||
| Baseball, Men (Olympic) | Game 1/2 | Cuba — Australia | Right Field | ||||
| Baseball, Men (Olympic) | Game #2 | Cuba — Canada | 2nd Base | ||||
| Baseball, Men (Olympic) | Game #4 | Netherlands — Greece | Home Plate | ||||
| Baseball, Men (Olympic) | Game #5 | Chinese Taipei — Australia | 1st Base | ||||
| Baseball, Men (Olympic) | Game #11 | Australia — Italy | 3rd Base | ||||
| Baseball, Men (Olympic) | Game #16 | Cuba — Chinese Taipei | 2nd Base | ||||
| Baseball, Men (Olympic) | Game #17 | Italy — Chinese Taipei | Home Plate | ||||
| Baseball, Men (Olympic) | Game #24 | Greece — Italy | 3rd Base |