Results/Photos

Date: Sept. 27, 2026 Participant: Karissa Underwood #32974 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Steady Pace Anchors a Strong 10K Finish Karissa Underwood completed the 2026 Boulderthon 10K in 1:03:47, an average pace of 10:17 per mile. Her cumulative pace held in a tight band through the first four miles, hovering between 10:26 and 10:27 per mile, before her fifth mile dropped to 9:17, the fastest stretch of her race and a clear surge before the finish. That effort pulled her overall elapsed pace down to 10:13 before settling at 10:17 by the finish. The result came at Boulder's altitude of over 5,000 feet, a notable backdrop for a race that finishes along the Pearl Street Mall in downtown Boulder.