John Hencken
Country: Unknow : May 29, 1954
: 1972, 1976
John Hencken
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John Hencken Olympics Milestones
| Season | Event | Rank |
|---|---|---|
| 1976 | Men 100m Breaststroke | G |
| 1976 | Men 4 x 100m Medley Relay | G |
| 1976 | Men 200m Breaststroke | S |
| 1972 | Men 200m Breaststroke | G |
| 1972 | Men 4 x 100m Medley Relay | G |
| 1972 | Men 100m Breaststroke | B |
