Results/Photos

Date: Sept. 27, 2026 Participant: Keaton Case #10997 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Early Pace Fades Late in the Mountain Air Keaton Case finished the 2026 Boulderthon Marathon in 4:16:32. He settled into a steady 8:108:30 per mile rhythm through the first half, holding that pace with only minor fluctuation into the mid-teens. His strongest stretch came between miles 9 and 13, where he averaged roughly 8:10 per mile, including a brisk 7:19 split at mile 11. After that, the pace gradually loosened, and from mile 19 onward the effort cost more per mile, with splits climbing into the 1113 minute range as he worked toward the finish. Boulder's elevation, over 5,000 feet, adds a layer of difficulty to any effort at this pace. Case passed through the lululemon Power-Up Zone near mile 22.5 right as his split times were their slowest of the day, a tough spot on the course to find a boost before the final miles into the Pearl Street Mall finish.