Results/Photos

Date: Sept. 27, 2026 Participant: Kelley R #26033 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Strong Early Pace Gives Way to a Tougher Back Half Kelley R covered the Boulder Half Marathon in 2:05:51, averaging 9:36 per mile. She built an efficient foundation through the first 6 miles, holding a steady 8:34 pace, before the effort cost caught up in the second half, where mile splits eased into the 10:0011:23 range through the finish. The opening 10K stands out as the strongest stretch of the race, run at a clip nearly a minute per mile faster than the overall average. Finishing on the Pearl Street Mall in downtown Boulder, Kelley closed out a course that carries the challenge of altitude at over 5,000 feet. With the early pace showing real fitness, working on sustaining that rhythm deeper into the race could be a rewarding focus for next time.