| Swimming |
1994 World Aquatics Championships |
Roma |
 ITA |
4 x 200 m Freestyle Relay, Men |
9 |
 JPN |
|
| Swimming |
1994 World Aquatics Championships |
Roma |
ITA |
1,500 m Freestyle, Men |
6 |
JPN |
|
| Swimming |
1994 Asian Games |
Hiroshima |
JPN |
1,500 m Freestyle, Men |
🥈 |
JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
 USA |
800 m Freestyle, Men |
8 |
JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
USA |
1,500 m Freestyle, Men |
15 |
JPN |
|
| Swimming |
1995 Pan Pacific Swimming Championships |
Atlanta |
USA |
400 m Freestyle, Men |
14 |
JPN |
|
| Swimming |
1995 Summer Universiade |
Fukuoka |
JPN |
1,500 m Freestyle, Men |
6 |
JPN |
|
| Swimming |
1995 Summer Universiade |
Fukuoka |
JPN |
800 m Freestyle, Men |
6 |
JPN |
|
| Swimming |
1995 Summer Universiade |
Fukuoka |
JPN |
400 m Freestyle, Men |
11 |
JPN |
|
| Swimming |
1996 Swim World Cup |
Beijing |
 CHN |
1,500 m Freestyle, Men |
🥈 |
JPN |
|
| Swimming |
1996 Swim World Cup |
Beijing |
CHN |
400 m Freestyle, Men |
🥈 |
JPN |
|
| Swimming |
1996 Asian Aquatics Championships |
Bangkok |
 THA |
1,500 m Freestyle, Men |
🥉 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
 SWE |
200 m Freestyle, Men |
29 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
SWE |
1,500 m Freestyle, Men |
9 |
JPN |
|
| Swimming |
1997 World Swimming Championships (25 m) |
Göteborg |
SWE |
400 m Freestyle, Men |
11 |
JPN |
|
| Swimming |
1997 Pan Pacific Swimming Championships |
Fukuoka |
JPN |
4 x 200 m Freestyle Relay, Men |
4 |
JPN |
|
| Swimming |
1997 Pan Pacific Swimming Championships |
Fukuoka |
JPN |
1,500 m Freestyle, Men |
7 |
JPN |
|
| Swimming |
1997 Pan Pacific Swimming Championships |
Fukuoka |
JPN |
800 m Freestyle, Men |
4 |
JPN |
|
| Swimming |
1997 Pan Pacific Swimming Championships |
Fukuoka |
JPN |
400 m Freestyle, Men |
14 |
JPN |
|
| Swimming |
1998 World Aquatics Championships |
Perth |
 AUS |
1,500 m Freestyle, Men |
10 |
JPN |
|
| Swimming |
1998 World Aquatics Championships |
Perth |
AUS |
400 m Freestyle, Men |
13 |
JPN |
|
| Swimming |
1998 Asian Games |
Bangkok |
THA |
400 m Freestyle, Men |
🥈 |
JPN |
|
| Swimming |
1998 Asian Games |
Bangkok |
THA |
1,500 m Freestyle, Men |
🥇 |
JPN |
|
| Swimming |
1999 Pan Pacific Swimming Championships |
Sydney |
AUS |
200 m Freestyle, Men |
19 |
JPN |
|
| Swimming |
1999 Pan Pacific Swimming Championships |
Sydney |
AUS |
1,500 m Freestyle, Men |
5 |
JPN |
|
| Swimming |
1999 Pan Pacific Swimming Championships |
Sydney |
AUS |
400 m Freestyle, Men |
5 |
JPN |
|
| Swimming |
2000 Swim World Cup |
Hobart |
AUS |
400 m Freestyle, Men |
🥈 |
JPN |
|
| Swimming |
2000 Swim World Cup |
Hobart |
AUS |
1,500 m Freestyle, Men |
🥇 |
JPN |
|
| Swimming |
2001 World Aquatics Championships |
Fukuoka |
JPN |
400 m Freestyle, Men |
19 |
JPN |
|
| Swimming |
2001 World Aquatics Championships |
Fukuoka |
JPN |
800 m Freestyle, Men |
13 |
JPN |
|
| Swimming |
2001 World Aquatics Championships |
Fukuoka |
JPN |
1,500 m Freestyle, Men |
12 |
JPN |
|