Results/Photos

Date: Sept. 27, 2026 Participant: Chase Mansmann #32778 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Strong Finish Rockets Denver Runner Into Top 2% Chase Mansmann crossed the line in 43:22, good for 51st overall and 37th among men out of a field of 3,071 in the 2026 Boulderthon 10K. He built through the race with steady mile splits in the high 6:50s to low 7:00s, then surged to a 6:36 fifth mile his fastest full-mile stretch of the day before easing back over the final mile. Running at altitude in a city that sits above 5,000 feet, Mansmann's pacing held remarkably consistent from mile to mile, with just a 25-second spread between his quickest and slowest full miles. That control through the middle miles, capped by the strong fifth-mile surge, points to well-managed effort across the distance.