Results/Photos

Date: Sept. 27, 2026 Participant: Madeleine Lachance #12869 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Early Pace Fades Late in Marathon Debut Madeleine Lachance finished the 2026 Boulderthon Marathon in 4:15:38. She moved through the first ten miles near 8:20 per mile, holding that rhythm steady through halfway. The middle miles held firm, with mile 12 through 17 sitting between 8:21 and 9:17 per mile, before the pace eased over the closing miles. The strongest stretch of the race came in the opening 10 miles, covered in 1:23:39, an 8:21 per mile average. From mile 18 onward, the pace slowed steadily, with miles 23 through 25 falling into the 12:52-14:07 per mile range. Lachance passed through the lululemon Power-Up Zone near mile 22.5 before working through the final miles into downtown Boulder, finishing on the Pearl Street Mall.