Results/Photos

Date: Sept. 27, 2026 Participant: Mitchell Thornock #10730 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Steady Early Pace Gives Way to a Tough Closing Stretch Mitchell Thornock finished his marathon in 4:23:45. He built a strong, even foundation early, holding between 9:11 and 9:25 per mile through the first 13 miles and staying near that tempo all the way to mile 18. His best mile came at mile 11, split in 8:48, the fastest full-mile stretch of his day. From mile 19 on, the pace steadily loosened, with the biggest drop between miles 22 and 23, where the tempo nearly doubled from his early rhythm before settling again over the final miles. That late slowdown fell near the lululemon Power-Up Zone, positioned around mile 22.5 on the marathon course. He carried on into downtown Boulder, closing on the historic Pearl Street Mall alongside every other distance in the race. Running at Boulder's elevation past 5,000 feet, his sustained sub-9:30 effort through the first two-thirds of the marathon stands as the highlight of the day.