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A runner competing in a 250-mile Arizona ultramarathon dies after having a medical emergency

Organizers said the race will continue in her honor after a woman in her 40s collapsed and died during the 253-mile event.

  • On Tuesday, a runner died during the Cocodona 250 ultramarathon after a medical emergency near Prescott, Arizona. The Yavapai County Sheriff confirmed no foul play was involved.
  • Aravaipa Running organizers announced the competition would continue in the runner's honor. The 253-mile race began Monday in Black Canyon City and concludes Saturday in Flagstaff.
  • First responders were called to Senatory Highway and Groom Creek Trailhead around 5 p.m., where Deputies identified the runner as a woman in her 40s who had collapsed.
  • On Wednesday, Rachel Entrekin became the first woman to win the Cocodona 250 outright, finishing in 56 hours and nine minutes and beating the previous record by more than two hours.
  • The death raises broader safety concerns in ultramarathon running, following a 2025 fatality during a 100-mile race in Colorado and a 2021 event in China where 21 competitors died from extreme weather.
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A 40-year-old runner lost her life in the ultrarathon Cocodona 250

·Montreal, Canada
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iRunFar broke the news on Wednesday, May 6, 2026.
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