Results/Photos

Date: Sept. 27, 2026 Participant: Stephan Tuchfeld #23328 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Steady Pacing Carries Tuchfeld Through 10K in Boulder Stephan Tuchfeld finished the 2026 Boulderthon 10K in 56:56, averaging 9:11 per mile. This marks a step up from his 2024 Boulder Half Marathon result of 2:03:17 (9:24 pace), showing sharper per-mile efficiency at the shorter distance. Tuchfeld's race stayed remarkably even through the first five miles, hovering between 8:57 and 9:13 cumulative pace, with a strong second mile split of 8:50. His steadiest stretch came from mile one through five, holding within a 16-second band of pace a sign of well-managed effort. The final mile eased slightly to a 10:00 split, a natural spot to focus on maintaining closing speed in future races. Racing at Boulder's altitude of over 5,000 feet adds context to the consistency of his effort throughout.