SAN JUAN COUNTY, CO – A Michigan runner collapsed and died while competing in an endurance race in the southwest Colorado mountains. The deceased runner was identified as 60-year-old Elaine Stypula, according to the San Juan County Colorado Coroner’s Office.

The death of a runner in Silverton during a 100-mile race is sending shockwaves through the running community. Elaine Stypula, 60, of Michigan, was running the Hardrock 100 -- a popular 102-mile endurance race in the southwest Colorado mountains.

Her cause of death has not been disclosed at this time An ultra-runner has died after collapsing during a mountain race in Colorado. At 9:02 a.m. local time on Friday, July 11th, emergency responders received a Search and Rescue call about a person receiving CPR three hours into the Hardrock Hundred Mile Endurance Run (Hardrock 100) on Little Giant Trail in Silverton,