Results/Photos

Date: Sept. 27, 2026 Participant: Katie Klappa #27824 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Six Minutes Faster and Finishing Strong Katie Klappa crossed the 2026 Boulderthon Half Marathon in 1:52:53, a 6:10 improvement over her 2024 finish of 1:59:03 on the same course. Her overall pace tightened as well, dropping from 9:05 to 8:37 per mile. Her mile splits held in a tight 8:208:54 band through the middle miles, showing consistent effort across the course. The final two miles stood out as her strongest stretch, with a 8:20 split at mile 12 and an 8:07 close in mile 13 her fastest mile of the race. This year's half course also carried nearly 50% less elevation gain than in previous editions, a shift that paired well with her faster overall time at Boulder's altitude above 5,000 feet.