KC
Kyungsun Choi

Kyungsun Choi

KORKORWomen
Birth dateMar 16, 1992
Height-
Weight-

Choi Kyung-sun (Korean: 최경선 (born 16 March 1992) is a South Korean long-distance runner.

In 2017, she competed in the women's marathon at the 2017 World Championships in Athletics held in London, United Kingdom. The following year, she finished in 4th place in the women's marathon at the 2018 Asian Games held in Jakarta, Indonesia.

Their career in athletics has contributed to the sport's development and represents the dedication required to compete at the highest levels. Their athletic achievements reflect years of dedicated training and competition at the highest levels.

Key facts
Half Marathon
1:08:35
#390 all-time
Marathon
2:28:49
2025 season best
1:11:30
Jan 26, 2025 · Osaka Half Marathon Course, Osaka (JPN)
2025 season best
Last competition
106th National Sports Festival, Busan Asiad Stadium, Busan
Oct 19, 2025 · 2:48:00
106th National Sports Festival, Busan Asiad Stadium, Busan
Record
National record · Half Marathon 1:08:35
National record
Age
34 years old

As of Sep 22, 2026: Half Marathon 1:08:35 (#390 all-time), Marathon 2:28:49, 2025 season best 1:11:30 (Jan 26, 2025, Osaka Half Marathon Course, Osaka (JPN)) · Last competition: 106th National Sports Festival, Busan Asiad Stadium, Busan, Oct 19, 2025, 2:48:00 · National record (Half Marathon) · 34 years old

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2025
5000m
17:18.09-May 21, 2025
↓
54th National Division Athletics Championships, Miryang Sports Complexs, Miryang
2025
10000m
35:10.59-May 23, 2025
↑
54th National Division Athletics Championships, Miryang Sports Complexs, Miryang
2025
Semi
1:11:30-Jan 26, 2025
↑
Osaka Half Marathon
2025
Marathon
2:30:31-Mar 16, 2025
↑
Seoul Marathon
2024
10000m
34:35.55-Jun 17, 2024
↑
53rd National Division Athletics Championships, Mokpo Stadium, Mokpo
2024
Marathon
2:35:39-Oct 13, 2024
↑
105th National Sports Festival, Gimhae Stadium, Gimhae
2023
10000m
34:04.57-Oct 17, 2023
↑
104th National Sports Festival, Mokpo
2023
Marathon
2:28:49-Apr 2, 2023
↑
Daegu International Marathon, Daegu
2022
Semi
1:14:41-Aug 21, 2022
↑
Korean Half Marathon Championships, Pyeongchang
2022
Marathon
2:30:42-Apr 17, 2022
↑
Seoul Marathon
2021
10000m
34:54.66-Jun 28, 2021
↑
Korean Championships, Jeongseon
2021
Marathon
2:35:33-Aug 7, 2021
↑
The XXXII Olympic Games
2020
Semi
1:08:35-Feb 2, 2020
↑
Kagawa Marugame International Half Marathon
2019
5000m
15:52.51-Jul 6, 2019
↓
Aoba Park Athletic Field, Chitose (JPN)
2019
10000m
32:46.20-Jul 9, 2019
↑
Fukagawa (JPN)
2019
Semi
1:10:58-Feb 24, 2019
↑
Gyeonggi International Half Marathon
2019
Marathon
2:29:06-Apr 7, 2019
↑
International Marathon, Daegu
2018
5000m
16:07.44-Jul 14, 2018
↓
Shibetsu (JPN)
2018
10000m
33:05.02-Jul 11, 2018
↑
Fukagawa (JPN)
2018
Semi
1:13:15-Feb 28, 2018
↑
Gyeongju Half Marathon
2018
Marathon
2:33:07-Mar 18, 2018
↑
Seoul Marathon
2017
Semi
1:15:07-Feb 26, 2017
↑
Gyeonggi International Half Marathon
2017
Marathon
2:32:27-Apr 2, 2017
↑
Daegu (KOR)
2016
5000m
18:00.58-Jul 7, 2016
↓
Bangkok (THA)
2016
Semi
1:15:27-Feb 28, 2016
↑
Suwon (KOR)
2016
Marathon
2:37:53-Mar 20, 2016
↑
Seoul (KOR)
2014
5000m
16:51.48-Jun 25, 2014
↓
Kimchun (KOR)
2014
10000m
35:05.20-Jun 7, 2014
↑
Yeosu (KOR)
2014
Marathon
2:39:10-Mar 16, 2014
↑
Seoul (KOR)
2013
Marathon
2:46:02-Mar 17, 2013
↑
Seoul (KOR)
2012
Marathon
2:42:09-Mar 18, 2012
↑
Seoul (KOR)
2010
5000m
17:10.97-May 11, 2010
↓
Changwon (KOR)
2010
10000m
35:33.74-May 14, 2010
↑
Changwon (KOR)
2009
3000mSt
10:55.70-Sep 10, 2009
↑
Daejeon (KOR)
2008
3000mSt
10:58.04-Oct 13, 2008
↑
Yeochun (KOR)

2025

12 performances
DisciplineResultWindDateCompetitions
Marathon
2:48:00-Oct 19106th National Sports Festival, Busan Asiad Stadium, Busan
Marathon
2:35:42-Sep 15World Athletics Championships, Tokyo 2025, National Stadium, Tokyo
Marathon
2:35:42-Sep 14World Athletics Championships, Tokyo 2025, National Stadium, Tokyo
10000m
35:31.32-Jun 1053rd Flag of KBS National Athletics Meeting, Yecheon Stadium, Yecheon
10000m
35:31.32-Jun 553rd Flag of KBS National Athletics Meeting, Yecheon Stadium, Yecheon
10000m
35:10.59-May 2354th National Division Athletics Championships, Miryang Sports Complexs, Miryang
5000m
17:18.09-May 2154th National Division Athletics Championships, Miryang Sports Complexs, Miryang
5000m
17:18.09-May 1954th National Division Athletics Championships, Miryang Sports Complexs, Miryang
10000m
35:10.59-May 1954th National Division Athletics Championships, Miryang Sports Complexs, Miryang
Marathon
2:34:21-Apr 6Gunsan Saemangeum Marathon
Marathon
2:30:31-Mar 16Seoul Marathon
Semi
1:11:30-Jan 26Osaka Half Marathon

2023

6 performances
DisciplineResultWindDateCompetitions
10000m
34:04.57-Oct 17104th National Sports Festival, Mokpo
10000m
34:04.57-Oct 16104th National Sports Festival, Mokpo
Marathon
2:31:52-Oct 519th Asian Games
Marathon
2:31:52-Oct 219th Asian Games
10000m
34:04.64-May 851st Flag of KBS National Athletics Meeting, Yecheon Stadium, Yecheon
Marathon
2:28:49-Apr 2Daegu International Marathon, Daegu

2022

3 performances
DisciplineResultWindDateCompetitions
Marathon
2:39:05-Oct 9National Games, Ulsan
Semi
1:14:41-Aug 21Korean Half Marathon Championships, Pyeongchang
Marathon
2:30:42-Apr 17Seoul Marathon

2021

4 performances
DisciplineResultWindDateCompetitions
Marathon
2:35:33-Aug 8The XXXII Olympic Games
Marathon
2:35:33-Aug 7The XXXII Olympic Games
10000m
34:54.66-Jun 28Korean Championships, Jeongseon
10000m
34:54.66-Jun 27Korean Championships, Jeongseon

2020

1 performance
DisciplineResultWindDateCompetitions
Semi
1:08:35-Feb 2Kagawa Marugame International Half Marathon

2019

12 performances
DisciplineResultWindDateCompetitions
Marathon
2:32:26-Oct 7National Sports Games, Olympic Stadium, Seoul
Marathon
2:32:26-Oct 6National Sports Games, Olympic Stadium, Seoul
Semi
1:13:47-Aug 16HAPPY 700 Pyeongchang/Daegwallyeong National Half Marathon, Pyeongchang
10000m
33:03.03-Jul 13Hokuren Distance Challenge, Shibetsu
10000m
32:46.20-Jul 9Hokuren Distance Challenge, Fukagawa
5000m
15:52.51-Jul 6Hokuren Distance Challenge, Aoba Park Athletic Field, Chitose
5000m
16:25.71-Jun 14KBS Cup Meeting, Kimchun
10000m
34:12.81-May 6Korean Division Championships, Chungju
10000m
34:12.81-May 5Korean Division Championships, Chungju
10000m
33:45.79-Apr 24Korean Club Championships, Yecheon
Marathon
2:29:06-Apr 7International Marathon, Daegu
Semi
1:10:58-Feb 24Gyeonggi International Half Marathon

2018

5 performances
DisciplineResultWindDateCompetitions
10000m
33:36.86-Oct 16Iksan Korean Sports Games, Iksan
5000m
16:26.60-Oct 14Iksan Korean Sports Games, Iksan
Marathon
2:37:49-Aug 28Jakarta Asian Games
Marathon
2:37:49-Aug 26Jakarta Asian Games
5000m
16:07.44-Jul 14Shibetsu Hokuren Distance Challenge, Shibetsu
Showing 1 - 50 of 78

Honours

6

19th Asian Games

Marathon

2023
🥇

Korean Half Marathon Championships

Half Marathon

2022
🥇

Korean Championships

10,000 Metres

2021
🥉

Jakarta Asian Games

Marathon

2018
FAQ

Frequently asked questions

What is Kyungsun Choi's Half Marathon personal best?

Kyungsun Choi's Half Marathon personal best is 1:08:35, set on Feb 2, 2020 in Marugame (JPN), #390 on the all-time list.

Which events does Kyungsun Choi compete in?

Kyungsun Choi competes in the Half Marathon and Marathon.

How did Kyungsun Choi perform in 2025?

2025 season best: 1:11:30, set on Jan 26, 2025 in Osaka Half Marathon Course, Osaka (JPN). Last competition: 106th National Sports Festival, Busan Asiad Stadium, Busan on Oct 19, 2025, 2:48:00.