Results/Photos

Date: Sept. 27, 2026 Participant: Allyson Serrao #23485 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady Pacing Powers a Strong Age-Group Finish Allyson Serrao finished the 2026 Boulderthon Half Marathon in 1:45:41, placing 570th overall and 144th among women in a field of 7,223 and 3rd in her 60-64 age group. Her race unfolded evenly through the first seven miles, holding between 7:52 and 8:01 per mile, before a natural dip through miles 8-10 near 8:20-8:30. She rallied over the closing miles, clocking 7:50 and 7:56 in miles 12 and 13 to finish strong. Her fastest mile of the race came at mile 6, a brisk 7:52, anchoring a first-half effort that set up her late surge. Running the full 13.1 miles at altitude in Boulder, which sits above 5,000 feet, adds context to the consistency of her effort. She finished on the historic Pearl Street Mall, capping a well-paced, resilient performance.