Results/Photos

Date: Sept. 27, 2026 Participant: Thomas Spiegler #25729 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Strong Start, Steady Finish Through Boulder's Redesigned Half Thomas Spiegler completed the 2026 Boulderthon Half Marathon in 1:41:45, an average pace of 7:46 per mile. His early miles were the highlight: covering the first five miles in 35:54, a 7:11 per-mile pace, before settling into a steadier rhythm over the back half. That opening stretch marked his fastest sustained running of the race, with cumulative pace never dropping below 7:11 until mile six. The 2026 half marathon course carried a redesigned route with net elevation gain cut nearly in half, from 384 feet to 203 feet a notable adjustment for a race run entirely above 5,000 feet in Boulder. Spiegler's pace held in the 7:458:37 range across the middle and closing miles, finishing strong with a 7:48 final mile.