A popular South Korean fitness influencer died after suddenly collapsing just 500 yards from the finish line of a half marathon, leaving fellow runners and thousands of followers devastated.
Yoo Ji-won, 25, was competing in the 2026 Seoul Race on Sunday, October 11, when she lost consciousness near the end of the 13.1-mile course.
According to race organizers, Yoo collapsed around 8:49 a.m. after completing approximately 12.8 miles, with only about 550 yards separating her from the finish line.
Emergency medical personnel immediately rushed to her aid and provided treatment before transporting her to a nearby hospital by ambulance.
Despite efforts to save her, Yoo died while receiving medical care. South Korean media reported that she passed away the following day, October 12.
Her cause of death has not been publicly determined.
The Seoul Race organizing committee confirmed the tragedy in a statement Monday, expressing condolences to Yoo’s family and the thousands of runners who participated in the event.
Organizers also pledged to review the circumstances surrounding her collapse and take any necessary follow-up measures.
Yoo was well known within South Korea’s growing running community, where she had attracted more than 8,000 Instagram followers by documenting her training, races, and personal achievements.
But her accomplishments extended far beyond athletics.
She was also a graduate student and researcher at the prestigious Korea Advanced Institute of Science and Technology, known as KAIST, where she studied artificial intelligence semiconductor technology.
Just one week before her death, Yoo had shared the results of a recent 10-kilometer race with her followers, celebrating another milestone in the sport she loved.
Her sudden death became even more heartbreaking when a close friend and fellow running influencer, known online as Bummy, revealed that he had been competing in the same race.
He recalled noticing a crowd gathering near the finish line and initially assuming another runner had been injured.
After completing his own race, he looked for Yoo near the awards podium, unaware that she was the person who had collapsed.
When he learned what happened, he rushed to the hospital, desperately hoping to see his friend.
In an emotional Instagram tribute, Bummy expressed his sorrow over not being able to remain by her side during her final moments.
News of Yoo’s death quickly spread across social media, where fellow athletes and followers flooded her final posts with messages of heartbreak.
“Every time I saw her running in a video, I thought she was an amazing runner,” one person wrote. “I will remember her for a long time to come.”
Another grieving follower shared, “I always cheered for you, but today I have to wish you rest in peace.”
The tragedy has also prompted renewed discussion about safety during endurance races.
South Korean Olympic marathon champion Hwang Young-cho urged runners to prioritize their health rather than pushing themselves beyond their limits in pursuit of faster times.
However, authorities have not established what caused Yoo to collapse, and there is no confirmed evidence that overexertion or any particular medical condition contributed to her death.
Approximately 12,000 runners participated in the Seoul Race, which featured a half marathon and a shorter race through the heart of the South Korean capital.
For Yoo’s family, friends, and followers, the loss is especially difficult to comprehend.
At just 25, she had built a promising career in scientific research while inspiring others through her passion for running.
So sorry for her family and friends! Clot shot, perhaps? Tomorrow is promised to no one. Invite Jesus Christ to be your Lord and Savior TODAY!