Ian O'Brien
Country: Unknow : Mar 3, 1947
: 1964, 1968
Ian O'Brien
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Ian O'Brien Olympics Milestones
| Season | Event | Rank |
|---|---|---|
| 1968 | Men 4 x 100m Medley Relay | 4 |
| 1968 | Men 100m Breaststroke | 6 |
| 1964 | Men 200m Breaststroke | G |
| 1964 | Men 4 x 100m Medley Relay | B |
