| Swimming |
1998 Asian Games |
Bangkok |
 THA |
400 m Individual Medley, Men |
🥇 |
 JPN |
|
| Swimming |
1999 Summer Universiade |
Palma de Mallorca |
 ESP |
200 m Individual Medley, Men |
🥉 |
JPN |
|
| Swimming |
1999 Summer Universiade |
Palma de Mallorca |
ESP |
400 m Individual Medley, Men |
🥉 |
JPN |
|
| Swimming |
1999 Pan Pacific Swimming Championships |
Sydney |
 AUS |
400 m Individual Medley, Men |
6 |
JPN |
|
| Swimming |
1999 Pan Pacific Swimming Championships |
Sydney |
AUS |
200 m Individual Medley, Men |
12 |
JPN |
|
| Swimming |
2001 East Asian Games |
Osaka |
JPN |
200 m Individual Medley, Men |
🥇 |
JPN |
|
| Swimming |
2001 World Aquatics Championships |
Fukuoka |
JPN |
200 m Individual Medley, Men |
5 |
JPN |
|
| Swimming |
2001 Summer Universiade |
Beijing |
 CHN |
200 m Individual Medley, Men |
🥇 |
JPN |
|
| Swimming |
2002 World Swimming Championships (25 m) |
Moskva |
 RUS |
200 m Freestyle, Men |
34 |
JPN |
|
| Swimming |
2002 World Swimming Championships (25 m) |
Moskva |
RUS |
200 m Backstroke, Men |
20 |
JPN |
|
| Swimming |
2002 World Swimming Championships (25 m) |
Moskva |
RUS |
100 m Individual Medley, Men |
14 |
JPN |
|
| Swimming |
2002 World Swimming Championships (25 m) |
Moskva |
RUS |
200 m Individual Medley, Men |
6 |
JPN |
|
| Swimming |
2002 World Swimming Championships (25 m) |
Moskva |
RUS |
400 m Individual Medley, Men |
13 |
JPN |
|
| Swimming |
2002 Pan Pacific Swimming Championships |
Yokohama |
JPN |
200 m Individual Medley, Men |
🥈 |
JPN |
|
| Swimming |
2002 Pan Pacific Swimming Championships |
Yokohama |
JPN |
400 m Individual Medley, Men |
🥉 |
JPN |
|
| Swimming |
2002 Asian Games |
Busan |
 KOR |
200 m Individual Medley, Men |
🥇 |
JPN |
|
| Swimming |
2002 Asian Games |
Busan |
KOR |
400 m Individual Medley, Men |
🥈 |
JPN |
|
| Swimming |
2003 World Aquatics Championships |
Barcelona |
ESP |
200 m Individual Medley, Men |
6 |
JPN |
|
| Swimming |
2003 World Aquatics Championships |
Barcelona |
ESP |
400 m Individual Medley, Men |
6 |
JPN |
|
| Swimming |
2003 Summer Universiade |
Daegu |
KOR |
400 m Individual Medley, Men |
🥇 |
JPN |
|
| Swimming |
2003 Summer Universiade |
Daegu |
KOR |
200 m Individual Medley, Men |
🥇 |
JPN |
|