| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
 USA |
200 m Backstroke, Men |
8 |
 JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
USA |
100 m Backstroke, Men |
13 |
JPN |
|
| Swimming |
1996 Swim World Cup |
Hong Kong |
 HKG |
200 m Backstroke, Men |
🥈 |
JPN |
|
| Swimming |
1996 Swim World Cup |
Hong Kong |
HKG |
100 m Backstroke, Men |
🥇 |
JPN |
|
| Swimming |
1996 Swim World Cup |
Hong Kong |
HKG |
50 m Backstroke, Men |
🥈 |
JPN |
|
| Swimming |
1996 Asian Aquatics Championships |
Bangkok |
 THA |
200 m Backstroke, Men |
🥉 |
JPN |
|
| Swimming |
1996 Asian Aquatics Championships |
Bangkok |
THA |
100 m Backstroke, Men |
🥇 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
 SWE |
200 m Backstroke, Men |
7 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
SWE |
100 m Backstroke, Men |
5 |
JPN |
|
| Swimming |
1997 East Asian Games |
Pusan |
 KOR |
100 m Backstroke, Men |
🥇 |
JPN |
|
| Swimming |
1997 East Asian Games |
Pusan |
KOR |
200 m Backstroke, Men |
🥈 |
JPN |
|
| Swimming |
1997 Pan Pacific Swimming Championships |
Fukuoka |
JPN |
4 x 100 m Medley Relay, Men |
AC |
JPN |
|
| Swimming |
1997 Pan Pacific Swimming Championships |
Fukuoka |
JPN |
200 m Backstroke, Men |
11 |
JPN |
|
| Swimming |
1997 Pan Pacific Swimming Championships |
Fukuoka |
JPN |
100 m Backstroke, Men |
5 |
JPN |
|
| Swimming |
1998 World Aquatics Championships |
Perth |
 AUS |
100 m Backstroke, Men |
=13 |
JPN |
|
| Swimming |
1998 World Aquatics Championships |
Perth |
AUS |
4 x 100 m Medley Relay, Men |
7 |
JPN |
|
| Swimming |
1999 Summer Universiade |
Palma de Mallorca |
 ESP |
100 m Backstroke, Men |
🥈 |
JPN |
|
| Swimming |
1999 Summer Universiade |
Palma de Mallorca |
ESP |
4 x 100 m Medley Relay, Men |
🥉 |
JPN |
|
| Swimming |
1999 Pan Pacific Swimming Championships |
Sydney |
AUS |
200 m Backstroke, Men |
6 |
JPN |
|
| Swimming |
1999 Pan Pacific Swimming Championships |
Sydney |
AUS |
100 m Backstroke, Men |
6 |
JPN |
|