Subscribe | UPI Odd Newsletter Subscribe June 18 (UPI) -- Participants in a Colorado marathon were shocked when their run was interrupted by a black bear that darted across their paths. Quentin Genke, who was running the Leadville Trail Marathon with friend Stephen Peterson, snapped a photo of the bear running across the road with runners on both sides of it. Advertisement "It was an amazing experience to witness!" Peterson told KCNC-TV. Genke and Peterson said they had never seen anything like it happen during a marathon. Read More Massachusetts teen comes face-to-face with bear in driveway Bear looks in through windows, tries to open door of Colorado home Bear rescued from inside New Mexico water tank