Results/Photos

Date: Sept. 27, 2026 Participant: Brendan Zeien #10413 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Start, Steady Fade, Determined Finish Brendan Zeien completed the marathon in 4:00:56, an average pace of 9:11 per mile. He opened fast, covering the first mile in 7:49 and holding pace in the low-to-mid 8:00s through mile 10, reaching the 10-mile mark at 1:24:21. That effort carried through the middle miles, with cumulative pace still under 8:40 per mile at mile 18. The final 10K told a different story: miles 21 through 25 slowed into the 10:4511:12 range before he closed with a 9:50 split over the last mile, pulling his overall pace back down. The strongest single stretch came early, miles 1 through 10, run at a cumulative pace of 8:26 per mile before the later miles caught up with him. That opening effort came at Boulder's altitude of over 5,000 feet, a factor for any runner tackling 26.2 miles through the city's backroads before finishing on the Pearl Street Mall.