Results/Photos

Date: Sept. 27, 2026 Participant: Casey An #26144 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady pacing carries a consistent half marathon effort Casey An finished the half marathon in 2:06:54, averaging 9:41 per mile. He opened with a 9:45 first mile, then settled into a tight rhythm through the middle miles, dipping as low as 9:12 before a brief slowdown to 10:44 at mile 11. He closed with a strong 9:28 twelfth mile before easing to the finish on the Pearl Street Mall. His standout stretch came from miles 4 through 6, where splits of 9:26, 9:25, and 9:12 pulled his cumulative pace down to 9:31 per mile his fastest sustained running of the race. That push came at altitude, with Boulder sitting above 5,000 feet, adding extra demand to the pace he held through the heart of the course.