| Swimming |
2003 Afro-Asian Games |
Hyderabad |
 IND |
100 m Breaststroke, Men |
🥇 |
 JPN |
|
| Swimming |
2003 Afro-Asian Games |
Hyderabad |
IND |
200 m Breaststroke, Men |
🥇 |
JPN |
|
| Swimming |
2003 Afro-Asian Games |
Hyderabad |
IND |
4 x 100 m Medley Relay, Men |
🥇 |
JPN |
|
| Swimming |
2004 World Swimming Championships (25 m) |
Indianapolis |
 USA |
100 m Breaststroke, Men |
12 |
JPN |
|
| Swimming |
2004 World Swimming Championships (25 m) |
Indianapolis |
USA |
50 m Breaststroke, Men |
20 |
JPN |
|
| Swimming |
2004 World Swimming Championships (25 m) |
Indianapolis |
USA |
200 m Breaststroke, Men |
35 |
JPN |
|
| Swimming |
2004 World Swimming Championships (25 m) |
Indianapolis |
USA |
4 x 100 m Medley Relay, Men |
6 |
JPN |
|
| Swimming |
2005 World Aquatics Championships |
Montréal |
 CAN |
50 m Breaststroke, Men |
30 |
JPN |
|
| Swimming |
2005 World Aquatics Championships |
Montréal |
CAN |
100 m Breaststroke, Men |
13 |
JPN |
|
| Swimming |
2005 World Aquatics Championships |
Montréal |
CAN |
200 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
2005 Summer Universiade |
İzmir |
 TUR |
200 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
2005 East Asian Games |
Macau |
 MAC |
100 m Breaststroke, Men |
🥈 |
JPN |
|
| Swimming |
2005 East Asian Games |
Macau |
MAC |
200 m Breaststroke, Men |
🥉 |
JPN |
|
| Swimming |
2005 East Asian Games |
Macau |
MAC |
4 x 100 m Medley Relay, Men |
🥈 |
JPN |
|
| Swimming |
2006 Pan Pacific Swimming Championships |
Victoria |
CAN |
100 m Breaststroke, Men |
17 |
JPN |
|
| Swimming |
2006 Pan Pacific Swimming Championships |
Victoria |
CAN |
200 m Breaststroke, Men |
10 |
JPN |
|