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Gender: Male
| Swimming | ||
| JPN Japan | ||
| Rank | Event | Result |
| México (Mexico City) 1968 | ||
| 24 (of 42) | 100m breaststroke | |
| 9 (of 39) | 200m breaststroke | |
| 5 (of 18) | 4x100m medley relay | 4:01.8 (+6.9) |
| München (Munich) 1972 | ||
| 1 (of 45) | 100m breaststroke | 1:04.94 |
| 3 (of 43) | 200m breaststroke | 2:23.88 (+2.33) |
| 6 (of 18) | 4x100m medley relay | 3:58.23 (+10.07) |
| Montréal (Montreal) 1976 | ||
| 12 (of 36) | 100m breaststroke | |
| 12 (of 31) | 200m breaststroke | |
| 8 (of 14) | 4x100m medley relay | 3:54.74 (+12.52) |