| Swimming |
1985 Pan Pacific Swimming Championships |
Tokyo |
 JPN |
4 x 100 m Freestyle Relay, Men |
4 |
JPN |
|
| Swimming |
1986 World Aquatics Championships |
Madrid |
 ESP |
200 m Freestyle, Men |
38 |
JPN |
|
| Swimming |
1986 World Aquatics Championships |
Madrid |
ESP |
100 m Freestyle, Men |
34 |
JPN |
|
| Swimming |
1986 World Aquatics Championships |
Madrid |
ESP |
50 m Freestyle, Men |
32 |
JPN |
|
| Swimming |
1986 Asian Games |
Seoul |
 KOR |
4 x 100 m Freestyle Relay, Men |
🥈 |
JPN |
|
| Swimming |
1986 Asian Games |
Seoul |
KOR |
4 x 100 m Medley Relay, Men |
🥇 |
JPN |
|
| Swimming |
1986 Asian Games |
Seoul |
KOR |
4 x 200 m Freestyle Relay, Men |
🥇 |
JPN |
|
| Swimming |
1986 Asian Games |
Seoul |
KOR |
200 m Freestyle, Men |
🥇 |
JPN |
|
| Swimming |
1986 Asian Games |
Seoul |
KOR |
100 m Freestyle, Men |
🥇 |
JPN |
|
| Swimming |
1987 Summer Universiade |
Zagreb |
 YUG |
4 x 100 m Medley Relay, Men |
🥈 |
JPN |
|
| Swimming |
1987 Pan Pacific Swimming Championships |
Brisbane |
 AUS |
4 x 100 m Medley Relay, Men |
4 |
JPN |
|
| Swimming |
1987 Pan Pacific Swimming Championships |
Brisbane |
AUS |
4 x 100 m Freestyle Relay, Men |
4 |
JPN |
|
| Swimming |
1987 Pan Pacific Swimming Championships |
Brisbane |
AUS |
100 m Freestyle, Men |
8 |
JPN |
|
| Swimming |
1987 Pan Pacific Swimming Championships |
Brisbane |
AUS |
50 m Freestyle, Men |
8 |
JPN |
|
| Swimming |
1988 Asian Aquatics Championships |
Guangzhou |
 CHN |
100 m Freestyle, Men |
🥈 |
JPN |
|
| Swimming |
1988 Asian Aquatics Championships |
Guangzhou |
CHN |
200 m Freestyle, Men |
🥈 |
JPN |
|
| Swimming |
1988 Asian Aquatics Championships |
Guangzhou |
CHN |
50 m Freestyle, Men |
5 |
JPN |
|
| Swimming |
1990 Asian Games |
Beijing |
CHN |
4 x 100 m Freestyle Relay, Men |
🥈 |
JPN |
|
| Swimming |
1990 Asian Games |
Beijing |
CHN |
4 x 200 m Freestyle Relay, Men |
🥇 |
JPN |
|
| Swimming |
1990 Asian Games |
Beijing |
CHN |
4 x 100 m Medley Relay, Men |
🥈 |
JPN |
|