Results/Photos

Date: Sept. 27, 2026 Participant: Kathryn Cooley #11654 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Even Effort Through Halfway Gives Way to a Tougher Finish Kathryn Cooley completed the 2026 Boulderthon Marathon in 4:33:24, an average pace of 10:26 per mile across the 26.2-mile course in Boulder, which sits at over 5,000 feet of elevation. Cooley's first 10 miles were her most consistent stretch, covering that distance in 1:34:50 for a 9:29 per-mile pace with only slight variation mile to mile. From there, her per-mile pace gradually eased through the middle miles, then slowed more noticeably in the final 10K, including a stretch near the lululemon Power-Up Zone around mile 22.5 where her pace dropped into the 12:30s per mile before tightening back up to an 11:52 mile to close out the race. Given the steadiness of her early miles, working in a similar rhythm deeper into the back half could be a useful focus going forward.