Results/Photos

Date: Sept. 27, 2026 Participant: Ryan Thomson #13087 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Start Fades Late as Marathon Time Slips From 2025 Ryan Thomson finished the 2026 Boulderthon Marathon in 4:31:10, well off his 3:47:50 finish at the same event in 2025. Through halfway, Thomson ran a controlled race, holding pace in the 8:10-8:40 min/mile range and reaching mile 17 in 2:31:40. From mile 18 onward, his pace steadily loosened, with several miles slipping past 13:00 min/mile as fatigue set in over the closing miles. His strongest stretch came early, covering miles 1 through 5 in 41:32, an average of roughly 8:18 min/mile, the fastest sustained running of his day. Thomson's late-race stretch would have carried him through the lululemon Power-Up Zone near mile 22.5 before the final push to the finish on the Pearl Street Mall in downtown Boulder.