# South Korea at the 2011 World Championships in Athletics

South Korea competed at the 2011 World Championships in Athletics from August 27 to September 4 in Daegu, South Korea as the host nation.

## Team selection

A team of 63 athletes was announced to represent the country in the event. The team was led by 110-meter hurdler Park Tae-kyong. Furthermore, the team includes 3 athletes invited by the IPC for exhibition events: Jung Dong-ho and Yoo Byung-hoon, 400m T53 (wheelchair) men, and Kang Kyung-sun, 800m T54 (wheelchair) women.
The following athletes appeared on the preliminary Entry List, but not on the Official Start List of the specific event, resulting in a total number of 53 competitors:
| KEY: | Did not participate | Competed in another event |
| | Event | Athlete |
| Men | 4 x 100 metres relay | Jeon Duk-hyung |
| Men | 4 x 100 metres relay | Kim Jin-Kuk |
| Men | 4 x 400 metres relay | Choi Myung-jun |
| Men | 4 x 400 metres relay | Kim Jaedeok |
| Women | 4 x 100 metres relay | Jung Hye-lim |
| Women | 4 x 100 metres relay | Joung Hansol |
| Women | 4 x 400 metres relay | Jang Yea-eun |
| Women | 4 x 400 metres relay | Seo In-ae |

## Results
### Men

| Athlete | Event | Preliminaries | Preliminaries | Heats | Heats | Semifinals | Semifinals | Final | Final |
| Athlete | Event | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank |
| Kim Kuk-young | 100 metres | DQ | DQ | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance |
| Park Bong-go | 400 metres | | | 46.42 (SB) | 25 | Did not advance | Did not advance | Did not advance | Did not advance |
| Sin Sang-min | 1500 metres | | | 3:55.02 | 35 | Did not advance | Did not advance | Did not advance | Did not advance |
| Baek Seung-ho | 5000 metres | | | 15:01.37 | 34 | | | Did not advance | Did not advance |
| Jeong Jin-hyeok | Marathon | | | | | | | 2:17:04 | 23 |
| Lee Myong-seung | Marathon | | | | | | | 2:18:05 | 28 |
| Hwang Jun-Hyeon | Marathon | | | | | | | 2:21:54 (SB) | 35 |
| Hwang Jun-Suk | Marathon | | | | | | | 2:23:47 | 40 |
| Kim Min | Marathon | | | | | | | 2:27:20 (SB) | 44 |
| Park Tae-kyong | 110 m hurdles | | | 13.83 | 26 | Did not advance | Did not advance | Did not advance | Did not advance |
| Lee Seung-yun | 400 m hurdles | | | 52.98 | 34 | Did not advance | Did not advance | Did not advance | Did not advance |
| Yeo Ho-suah Cho Kyu-won Kim Kuk-young Lim Hee-nam | 4 x 100 metres relay | | | 38.94 (NR) | 13 | | | Did not advance | Did not advance |
| Park Bong-go Lim Chan-ho Lee Jun Seong Hyeok-je | 4 x 400 metres relay | | | 3:04.05 (NR) | 15 | | | Did not advance | Did not advance |
| Byun Young-jun | 20 kilometres walk | | | | | | | 1:24:48 | 25 |
| Kim Hyun-sub | 20 kilometres walk | | | | | | | 1:21:17 | |
| Park Chil-sung | 20 kilometres walk | | | | | | | DNF | DNF |
| Park Chil-sung | 50 kilometres walk | | | | | | | 3:47:13 (NR) | 7 |
| Kim Dong-young | 50 kilometres walk | | | | | | | 3:51:12 (PB) | 14 |
| Yim Jung-hyun | 50 kilometres walk | | | | | | | DQ | DQ |
| Kim Deok-hyeon | Long jump | 8.02 (SB) | 11 | | | | | DNS | DNS |
| Kim Deok-hyeon | Triple jump | No Mark | No Mark | | | | | Did not advance | Did not advance |
| Yun Ye-hwan | High jump | No Mark | No Mark | | | | | Did not advance | Did not advance |
| Kim Yoo-suk | Pole vault | 5.20 | 26 | | | | | Did not advance | Did not advance |
| Hwang In-sung | Shot put | 17.75 | 27 | | | | | Did not advance | Did not advance |
| Lee Yun-chul | Hammer throw | 68.98 (SB) | 29 | | | | | Did not advance | Did not advance |
| Jung Sang-jin | Javelin throw | 72.03 | 34 | | | | | Did not advance | Did not advance |
Decathlon
| Kim Kun-woo | Decathlon | | | |
| Kim Kun-woo | Event | Results | Points | Rank |
| | 100 m | 11.11 (SB) | 836 | 19 |
| | Long jump | 7.24 (SB) | 871 | 16 |
| | Shot put | 12.96 (SB) | 665 | 26 |
| | High jump | 1.96 (SB) | 767 | 20 |
| | 400 m | 49.24 | 850 | 10 |
| | 110 m hurdles | 14.95 (SB) | 856 | 24 |
| | Discus throw | 39.53 | 655 | 23 |
| | Pole vault | 4.90 (PB) | 880 | 6 |
| | Javelin throw | 53.33 | 638 | 20 |
| | 1500 m | 4:15.63 (SB) | 842 | 2 |
| Total | | | 7860 (NR) | 17 |

### Women

| Athlete | Event | Preliminaries | Preliminaries | Heats | Heats | Semifinals | Semifinals | Final | Final |
| Athlete | Event | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank |
| Jung Hye-lim | 100 metres | 11.90 | 3 Q | 11.88 | 40 | Did not advance | Did not advance | Did not advance | Did not advance |
| Huh Yeon-jung | 800 metres | | | 2:08.05 | 34 | Did not advance | Did not advance | Did not advance | Did not advance |
| Kim Sung-eun | Marathon | | | | | | | 2:37:05 (SB) | 28 |
| Lee Sook-jung | Marathon | | | | | | | 2:40:23 | 34 |
| Chung Yun-hee | Marathon | | | | | | | 2:42:28 | 35 |
| Park Jun-sook | Marathon | | | | | | | 3:03:34 | 43 |
| Choi Bo-ra | Marathon | | | | | | | 3:10:06 | 44 |
| Jung Hye-lim | 100 m hurdles | | | 13.39 | 23 | Did not advance | Did not advance | Did not advance | Did not advance |
| Son Kyeong-mi | 400 m hurdles | | | 1:00.21 | 36 | Did not advance | Did not advance | Did not advance | Did not advance |
| Eum Jeesu Kim So-yeon Lee Sun-ae Park So-yeun | 4 x 100 metres relay | | | 46.14 (SB) | 16 | | | Did not advance | Did not advance |
| Woo Yu-jin Lee Ha-nee Oh Se-ra Park Seongmyun | 4 x 400 metres relay | | | 3:43.22 (SB) | 19 | | | Did not advance | Did not advance |
| Jeon Yong-eun | 20 kilometres walk | | | | | | | 1:35:52 (SB) | 26 |
| Jung Soon-ok | Long jump | 6.18 (SB) | 29 | | | | | Did not advance | Did not advance |
| Jung Hye-kyung | Triple jump | 13.50 | 30 | | | | | Did not advance | Did not advance |
| Han Da-rye | High jump | 1.75 | 29 | | | | | Did not advance | Did not advance |
| Choi Yun-hee | Pole vault | 4.40 (NR) | 19 | | | | | Did not advance | Did not advance |
| Lee Mi-young | Shot put | 16.18 | 23 | | | | | Did not advance | Did not advance |
| Kang Na-ru | Hammer throw | 61.05 | 30 | | | | | Did not advance | Did not advance |
| Kim Kyung-ae | Javelin throw | 54.96 | 27 | | | | | Did not advance | Did not advance |