Results/Photos

Date: Sept. 27, 2026 Participant: Alexey Serbinov #12832 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Steady Early Pace Anchors a Strong Marathon Effort Alexey Serbinov completed the 2026 Boulderthon marathon in 4:06:07, averaging 9:23 per mile over the 26.2-mile course through Boulder. His early and middle miles were remarkably consistent, holding between 8:43 and 9:35 per mile through the first 17 miles, before easing gradually over the closing miles as he made his way to the finish on the Pearl Street Mall. His strongest stretch came from mile 5 through mile 10, where he covered five straight miles between 8:43 and 9:16 per mile the fastest sustained mile-plus stretch of his race. That composure came at Boulders altitude of more than 5,000 feet, a demanding backdrop that makes his even pacing through the races midsection all the more notable.