Results/Photos

Date: Sept. 27, 2026 Participant: Tanner Allen #10658 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Start Carries Marathoner to a Faster Finish Tanner Allen finished the 2026 Boulderthon Marathon in 4:10:30, improving on his 4:20:26 from the 2024 race by nearly ten minutes. Allen built an efficient opening, holding between 8:05 and 8:12 elapsed pace through the first eleven miles, with his fastest mile coming at mile 5 in 7:58. The pace gradually eased over the middle miles before slowing more through the closing stretch, with elapsed pace settling near 9:34 by the finish. That second-half fade came on a 2026 course redesigned to cut net elevation gain by roughly 40 percent, from 982 to 603 feet, a change that helped support his overall improvement over the 2024 effort. Running at Boulder's altitude of over 5,000 feet, Allen's steady front half stands out as the strongest stretch of his race.