South Korean Runner Influencer Yoo Ji-won Dies After Collapsing During Seoul Half Marathon
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South Korean runner influencer Yoo Ji-won, aged 25, passed away after collapsing approximately 500 meters from the finish line during the Seoul Race 2026 half marathon. The cause of death has not been officially confirmed. Yoo was a graduate student at KAIST, researching semiconductors for artificial intelligence, and had gained a significant following for sharing her running journey online.
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