Results/Photos

Date: Sept. 27, 2026 Participant: Magdalena Landa Posas #31989 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Steady Start Gives Way to a Patient Finish Magdalena Landa Posas completed the 2026 Boulderthon 10K in 1:18:08. Her opening mile was her quickest at 11:10 per mile, and cumulative pace held near 11:25 through the second mile before easing gradually across the remaining distance, closing with a 12:39 per mile overall average. The first two miles stand out as her strongest sustained stretch of the race, holding closest to that early rhythm before the pace settled through the back half. Running this 10K at Boulder's elevation of over 5,000 feet adds context to that early tempo and the steady effort that followed to the finish on the Pearl Street Mall.