| Swimming |
1990 Asian Games |
Beijing |
 CHN |
1,500 m Freestyle, Men |
🥇 |
 JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
 CAN |
400 m Freestyle, Men |
7 |
JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
CAN |
800 m Freestyle, Men |
4 |
JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
CAN |
1,500 m Freestyle, Men |
4 |
JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
CAN |
4 x 200 m Freestyle Relay, Men |
4 |
JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
CAN |
200 m Freestyle, Men |
8 |
JPN |
|
| Swimming |
1993 Summer Universiade |
Buffalo |
 USA |
1,500 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1993 Summer Universiade |
Buffalo |
USA |
800 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1993 Pan Pacific Swimming Championships |
Kobe |
JPN |
400 m Freestyle, Men |
6 |
JPN |
|
| Swimming |
1993 Pan Pacific Swimming Championships |
Kobe |
JPN |
800 m Freestyle, Men |
6 |
JPN |
|
| Swimming |
1993 Pan Pacific Swimming Championships |
Kobe |
JPN |
1,500 m Freestyle, Men |
5 |
JPN |
|
| Swimming |
1993 World Swimming Championships (25 m) |
Palma de Mallorca |
 ESP |
1,500 m Freestyle, Men |
6 |
JPN |
|
| Swimming |
1993 World Swimming Championships (25 m) |
Palma de Mallorca |
ESP |
400 m Freestyle, Men |
9 |
JPN |
|
| Swimming |
1993 World Swimming Championships (25 m) |
Palma de Mallorca |
ESP |
200 m Freestyle, Men |
12 |
JPN |
|
| Swimming |
1994 World Aquatics Championships |
Roma |
 ITA |
400 m Freestyle, Men |
16 |
JPN |
|
| Swimming |
1994 World Aquatics Championships |
Roma |
ITA |
1,500 m Freestyle, Men |
20 |
JPN |
|
| Swimming |
1994 World Aquatics Championships |
Roma |
ITA |
4 x 200 m Freestyle Relay, Men |
9 |
JPN |
|
| Swimming |
1994 Asian Games |
Hiroshima |
JPN |
400 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1994 Asian Games |
Hiroshima |
JPN |
4 x 200 m Freestyle Relay, Men |
🥇 |
JPN |
|
| Swimming |
1995 Summer Universiade |
Fukuoka |
JPN |
200 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1995 Summer Universiade |
Fukuoka |
JPN |
4 x 200 m Freestyle Relay, Men |
🥉 |
JPN |
|