Results/Photos

Date: Sept. 27, 2026 Participant: William Leith #23058 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Even Pacing Through Boulder Nets a Top 2% Finish William Leith finished the half marathon in 1:27:07, an average pace of 6:39 min/mile, placing 100th overall and 88th among men in a field of 7,223. Leith opened with a strong first six miles, holding between 6:26 and 6:39 pace and reaching the 6-mile mark in 39:02. A stretch through miles 8 and 10 eased to 6:57 and 7:02, before he closed with a 6:26 mile 12, showing he still had another gear late in the race. Running at Boulder's altitude of over 5,000 feet, Leith's steady effort across the opening six miles stands out as the most consistent stretch of his race, setting up a solid finish on the Pearl Street Mall.