Results/Photos

Date: Sept. 27, 2026 Participant: Jeff Koeneman #27241 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady Pace Holds Firm Across Boulder's Half Marathon Miles Jeff Koeneman finished the half marathon in 1:50:23, averaging 8:25 per mile across the 13.1-mile course. Koeneman's pacing stayed remarkably consistent, with splits mostly clustered between 8:20 and 8:30 per mile. His fastest mile came early, a 7:57 fifth mile that nudged his cumulative pace to its quickest point of the day. The stretch from miles 7 through 11 saw slight fluctuation, including an 8:46 and an 8:47 split, before he closed strong with an 8:14 twelfth mile. Running at Boulder's altitude of over 5,000 feet, Koeneman's ability to hold his pace within a narrow band for the majority of the race reflects well-managed effort management throughout. A slightly stronger push through the middle miles could be worth exploring in future races.