Results/Photos

Date: Sept. 27, 2026 Participant: Alex Nelson #32255 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Steady Fade Marks a Denver Runner's 10K Effort Alex Nelson completed the 2026 Boulderthon 10K in 1:22:18. The race unfolded as a gradual slowdown: an 11:10 opening mile gave way to a 11:45 second, then 12:29, 13:31, 14:41, and finally 16:00 to close, pushing the overall pace from 11:10 to 13:16 per mile by the finish. That opening mile stood out as the day's fastest stretch, run more than four minutes per mile quicker than the closing mile. Boulder's elevation, over 5,000 feet, adds context to that steady late-race cost, with each mile costing a bit more than the last as the effort wore on. Nelson's pacing pattern suggests room to work on sustaining early rhythm deeper into races of this distance, a fair target for the next 10K on the calendar.