| Swimming |
2003 World Aquatics Championships |
Barcelona |
 ESP |
50 m Breaststroke, Men |
29 |
 JPN |
|
| Swimming |
2003 World Aquatics Championships |
Barcelona |
ESP |
100 m Breaststroke, Men |
AC |
JPN |
|
| Swimming |
2005 Summer Universiade |
İzmir |
 TUR |
100 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
2005 Summer Universiade |
İzmir |
TUR |
4 x 100 m Medley Relay, Men |
🥉 |
JPN |
|
| Swimming |
2006 Pan Pacific Swimming Championships |
Victoria |
 CAN |
100 m Breaststroke, Men |
10 |
JPN |
|
| Swimming |
2006 Pan Pacific Swimming Championships |
Victoria |
CAN |
200 m Breaststroke, Men |
18 |
JPN |
|
| Swimming |
2006 Asian Games |
Doha |
 QAT |
100 m Breaststroke, Men |
🥈 |
JPN |
|
| Swimming |
2006 Asian Games |
Doha |
QAT |
4 x 100 m Medley Relay, Men |
🥇 |
JPN |
|
| Swimming |
2007 World Aquatics Championships |
Melbourne |
 AUS |
50 m Breaststroke, Men |
=38 |
JPN |
|
| Swimming |
2007 World Aquatics Championships |
Melbourne |
AUS |
100 m Breaststroke, Men |
22 |
JPN |
|