Results/Photos

Date: Sept. 27, 2026 Participant: Zach Nelson #12437 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Steady Early Pace Gives Way to a Tough Final Stretch Zach Nelson completed the marathon in 4:20:52. He ran with notable consistency through the first eighteen miles, holding splits between 8:15 and 8:56 per mile, before the pace eased in the second half, closing with an overall elapsed pace of 9:57 per mile by the finish. His strongest mile came at mile 11, covered in 7:39, the fastest stretch of his race and a clear highlight amid an otherwise steady middle portion. Racing across Boulder's terrain at over 5,000 feet of elevation, Nelson's disciplined pacing through the race's first two-thirds set up a demanding final quarter, where the effort of the day caught up with him.