| Swimming |
1987 Pan Pacific Swimming Championships |
Brisbane |
 AUS |
400 m Freestyle, Men |
9 |
 JPN |
|
| Swimming |
1987 Pan Pacific Swimming Championships |
Brisbane |
AUS |
1,500 m Freestyle, Men |
7 |
JPN |
|
| Swimming |
1989 Pan Pacific Swimming Championships |
Tokyo |
JPN |
400 m Freestyle, Men |
8 |
JPN |
|
| Swimming |
1989 Pan Pacific Swimming Championships |
Tokyo |
JPN |
800 m Freestyle, Men |
7 |
JPN |
|
| Swimming |
1989 Pan Pacific Swimming Championships |
Tokyo |
JPN |
1,500 m Freestyle, Men |
6 |
JPN |
|
| Swimming |
1990 Swim World Cup |
Göteborg |
 SWE |
1,500 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1990 Swim World Cup |
Desenzano del Garda |
 ITA |
800 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1990 Asian Games |
Beijing |
 CHN |
1,500 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
 CAN |
800 m Freestyle, Men |
10 |
JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
CAN |
1,500 m Freestyle, Men |
8 |
JPN |
|
| Swimming |
1992 Asian Aquatics Championships |
Hiroshima |
JPN |
1,500 m Freestyle, Men |
🥉 |
JPN |
|