Results/Photos

Date: Sept. 27, 2026 Participant: Emma Chalk #12353 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Steady Early Miles Power a Strong Marathon Finish Emma Chalk completed the marathon in 4:32:05, an average pace of 10:23 per mile. Her race built steadily through the first half, holding between 9:03 and 9:52 per mile through mile 10, before a gradual fade took hold across the middle and late miles, settling into the 10:30-11:30 range by the finish. The first 10 miles stood as the strongest stretch of the day, run at a consistent sub-9:52 pace and never dipping below that mark until well past halfway. That early consistency set up the overall result despite the second-half slowdown. Running at Boulder's altitude of over 5,000 feet adds a layer of difficulty to maintaining pace over 26.2 miles, making the steady opening miles a notable foundation for the race.