Results/Photos

Date: Sept. 27, 2026 Participant: Jon Day #13179 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Pace Through 20 Miles Before a Late Fade Closes Out a Top-2% Finish Jon Day finished the marathon in 3:20:58, placing 52nd overall and 45th among men in a field of 3,305. He built a substantial cushion early, holding between 6:40 and 7:00 per mile through the first 18 miles, with elapsed pace never drifting past 6:52 during that stretch. That control gave way over miles 21-24, where splits slid to the 10:18-10:56 range, before he tightened back up to 8:10 and 9:15 to close out the final two miles. That opening 18-mile stretch, run at Boulder's altitude of over 5,000 feet, stands as the clear strength of the race. The slowdown arrived just before the lululemon Power-Up Zone near mile 22.5, and finishing with two of his fastest late miles suggests he had more to give down the stretch.