| Athletics |
1990 Asian Junior Athletics Championships |
Beijing |
 CHN |
400 m Hurdles, Men |
🥇 |
 JPN |
|
| Athletics |
1990 Asian Junior Athletics Championships |
Beijing |
CHN |
4 x 400 m Relay, Men |
🥇 |
JPN |
|
| Athletics |
1990 World Athletics U20 Championships |
Plovdiv |
 BUL |
400 m Hurdles, Men |
🥈 |
JPN |
|
| Athletics |
1991 Summer Universiade |
Sheffield |
 GBR |
400 m Hurdles, Men |
🥈 |
JPN |
|
| Athletics |
1991 Asian Athletics Championships |
Kuala Lumpur |
 MAS |
400 m Hurdles, Men |
🥇 |
JPN |
|
| Athletics |
1991 Asian Athletics Championships |
Kuala Lumpur |
MAS |
4 x 400 m Relay, Men |
🥇 |
JPN |
|
| Athletics |
1993 World Athletics Indoor Championships |
Toronto |
 CAN |
4 x 400 m Relay, Men |
🥉 |
JPN |
|
| Athletics |
1993 Summer Universiade |
Buffalo |
 USA |
400 m Hurdles, Men |
🥈 |
JPN |
|
| Athletics |
1993 Summer Universiade |
Buffalo |
USA |
4 x 400 m Relay, Men |
🥈 |
JPN |
|
| Athletics |
1994 Asian Games |
Hiroshima |
JPN |
400 m Hurdles, Men |
🥈 |
JPN |
|
| Athletics |
1995 Summer Universiade |
Fukuoka |
JPN |
400 m Hurdles, Men |
🥉 |
JPN |
|
| Athletics |
1997 East Asian Games |
Pusan |
 KOR |
400 m Hurdles, Men |
🥈 |
JPN |
|
| Athletics |
1998 Asian Games |
Bangkok |
 THA |
400 m Hurdles, Men |
🥈 |
JPN |
|