| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
 CAN |
200 m Individual Medley, Men |
8 |
 JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
CAN |
400 m Individual Medley, Men |
8 |
JPN |
|
| Swimming |
1991 Pan Pacific Swimming Championships |
Edmonton |
CAN |
400 m Freestyle, Men |
13 |
JPN |
|
| Swimming |
1992 Asian Aquatics Championships |
Hiroshima |
JPN |
400 m Individual Medley, Men |
🥈 |
JPN |
|
| Swimming |
1993 Pan Pacific Swimming Championships |
Kobe |
JPN |
200 m Freestyle, Men |
27 |
JPN |
|
| Swimming |
1993 Pan Pacific Swimming Championships |
Kobe |
JPN |
200 m Individual Medley, Men |
12 |
JPN |
|
| Swimming |
1993 Pan Pacific Swimming Championships |
Kobe |
JPN |
400 m Individual Medley, Men |
10 |
JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
 USA |
4 x 200 m Freestyle Relay, Men |
5 |
JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
USA |
400 m Individual Medley, Men |
8 |
JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
USA |
200 m Individual Medley, Men |
8 |
JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
USA |
200 m Freestyle, Men |
14 |
JPN |
|
| Swimming |
1995 Summer Universiade |
Fukuoka |
JPN |
400 m Individual Medley, Men |
4 |
JPN |
|
| Swimming |
1996 Asian Aquatics Championships |
Bangkok |
 THA |
200 m Individual Medley, Men |
🥈 |
JPN |
|
| Swimming |
1996 Asian Aquatics Championships |
Bangkok |
THA |
400 m Individual Medley, Men |
🥈 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
 SWE |
400 m Individual Medley, Men |
11 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
SWE |
400 m Freestyle, Men |
25 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
SWE |
200 m Individual Medley, Men |
15 |
JPN |
|
| Swimming |
1997 Summer Universiade |
Catania |
 ITA |
200 m Individual Medley, Men |
🥉 |
JPN |
|