| Swimming |
1970 Summer Universiade |
Torino |
 ITA |
100 m Breaststroke, Men |
🥈 |
 JPN |
|
| Swimming |
1970 Summer Universiade |
Torino |
ITA |
200 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
1970 Summer Universiade |
Torino |
ITA |
4 x 100 m Medley Relay, Men |
🥉 |
JPN |
|
| Swimming |
1970 Asian Games |
Bangkok |
 THA |
100 m Breaststroke, Men |
🥇 |
JPN |
|
| Swimming |
1970 Asian Games |
Bangkok |
THA |
200 m Breaststroke, Men |
🥇 |
JPN |
|
| Swimming |
1970 Asian Games |
Bangkok |
THA |
4 x 100 m Medley Relay, Men |
🥇 |
JPN |
|
| Swimming |
1971 USA Swimming National Championships (Outdoor/LCM) |
Houston, Texas |
 USA |
100 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
1971 USA Swimming National Championships (Outdoor/LCM) |
Houston, Texas |
USA |
200 m Breaststroke, Men |
6 |
JPN |
|
| Swimming |
1973 World Aquatics Championships |
Beograd |
 YUG |
100 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
1973 World Aquatics Championships |
Beograd |
YUG |
200 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
1974 Asian Games |
Tehran |
 IRI |
100 m Breaststroke, Men |
🥇 |
JPN |
|
| Swimming |
1974 Asian Games |
Tehran |
IRI |
200 m Breaststroke, Men |
🥇 |
JPN |
|
| Swimming |
1974 Asian Games |
Tehran |
IRI |
4 x 100 m Medley Relay, Men |
🥇 |
JPN |
|
| Swimming |
1975 World Aquatics Championships |
Cali |
 COL |
100 m Breaststroke, Men |
🥈 |
JPN |
|
| Swimming |
1975 World Aquatics Championships |
Cali |
COL |
200 m Breaststroke, Men |
6 |
JPN |
|