[1] She competed in the marathon at the 2012 Summer Olympics, placing 74th with a time of 2:38:33.

[3][4] Her next international outings came in 2009 when she placed sixth in the half marathon at the Summer Universiade and fifth in the same event at the East Asian Games.

Her run at the 2012 Pyongyang Marathon brought her up to the elite standard, as she won the race with a personal best of 2:30:41 hours.

[1] A return to Pyongyang in 2013 saw her rise to the top of the national team with a second win at the race with a time of 2:26:32, ranking her third on the North Korean all-time lists.

[7] This biographical article relating to North Korean athletics is a stub.