Results/Photos

Date: Sept. 27, 2026 Participant: Mackenzie Haynes #32563 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Strong Start Carries Through a Steady 10K Mackenzie Haynes finished the 2026 Boulderthon 10K in 59:21, an overall pace of 9:34 per mile. The first two miles were the quickest of the race, clicking off in 8:47 and 8:41, and that early pace held the cumulative average near 8:43 through mile two. From there, each mile ticked slightly slower, with mile four landing at 9:57 and mile five at 9:50, before the final mile settled the overall pace to 9:33. Miles one and two stand out as the fastest sustained running of the day. Boulder's elevation, over 5,000 feet, provides useful context for the pacing pattern across the back half of the course.