| Swimming |
2004 World Swimming Championships (25 m) |
Indianapolis |
 USA |
50 m Backstroke, Men |
DNS |
 KOR |
|
| Swimming |
2004 World Swimming Championships (25 m) |
Indianapolis |
USA |
100 m Backstroke, Men |
DNS |
KOR |
|
| Swimming |
2004 World Swimming Championships (25 m) |
Indianapolis |
USA |
200 m Backstroke, Men |
DNS |
KOR |
|
| Swimming |
2005 World Aquatics Championships |
Montréal |
 CAN |
4 x 100 m Medley Relay, Men |
11 |
KOR |
|
| Swimming |
2005 World Aquatics Championships |
Montréal |
CAN |
200 m Backstroke, Men |
27 |
KOR |
|
| Swimming |
2005 World Aquatics Championships |
Montréal |
CAN |
50 m Backstroke, Men |
28 |
KOR |
|
| Swimming |
2005 World Aquatics Championships |
Montréal |
CAN |
100 m Backstroke, Men |
35 |
KOR |
|
| Swimming |
2006 World Swimming Championships (25 m) |
Shanghai |
 CHN |
50 m Backstroke, Men |
31 |
KOR |
|
| Swimming |
2006 World Swimming Championships (25 m) |
Shanghai |
CHN |
100 m Backstroke, Men |
29 |
KOR |
|
| Swimming |
2006 World Swimming Championships (25 m) |
Shanghai |
CHN |
200 m Backstroke, Men |
17 |
KOR |
|
| Swimming |
2006 World Swimming Championships (25 m) |
Shanghai |
CHN |
4 x 100 m Medley Relay, Men |
11 |
KOR |
|
| Swimming |
2006 Pan Pacific Swimming Championships |
Victoria |
CAN |
200 m Backstroke, Men |
21 |
KOR |
|
| Swimming |
2006 Pan Pacific Swimming Championships |
Victoria |
CAN |
4 x 100 m Medley Relay, Men |
AC |
KOR |
|
| Swimming |
2006 Pan Pacific Swimming Championships |
Victoria |
CAN |
100 m Backstroke, Men |
16 |
KOR |
|
| Swimming |
2006 Asian Games |
Doha |
 QAT |
4 x 100 m Medley Relay, Men |
🥉 |
KOR |
|
| Swimming |
2007 World Aquatics Championships |
Melbourne |
 AUS |
50 m Backstroke, Men |
38 |
KOR |
|
| Swimming |
2007 World Aquatics Championships |
Melbourne |
AUS |
100 m Backstroke, Men |
39 |
KOR |
|
| Swimming |
2007 World Aquatics Championships |
Melbourne |
AUS |
200 m Backstroke, Men |
28 |
KOR |
|
| Swimming |
2007 Asian Indoor Games |
Macau |
 MAC |
4 x 100 m Freestyle Relay, Women |
🥉 |
KOR |
|
| Swimming |
2007 Asian Indoor Games |
Macau |
MAC |
200 m Individual Medley, Women |
🥉 |
KOR |
|