Results/Photos

Date: Sept. 27, 2026 Participant: Luke Chinburg #20501 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady Pacing Gives Way to a Strong Closing Kick Luke Chinburg covered the half marathon in 1:42:31, holding between 7:47 and 8:04 per mile through the middle miles before a tougher seventh mile ticked up to 8:32. From there his pace steadied again, and the final four milescovering 30:16, an average of about 7:34 per milewere his fastest sustained stretch of the race, including a 7:24 split in mile twelve. That closing surge carried him into downtown Boulder, where the half marathon finishes on the historic Pearl Street Mall. Running the full distance at Boulder's altitude of over 5,000 feet, Chinburg's ability to speed up late, rather than fade, stands out as the clearest strength of his race. A slightly more even effort through miles six and seven could smooth the overall pacing profile next time.