Results/Photos

Date: Sept. 27, 2026 Participant: John Cook #10807 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Steady Early Pace Gives Way to a Determined Closing Push John Cook finished the 2026 Boulderthon Marathon in 4:20:29. He ran the first 14 miles with real consistency, holding between 8:05 and 8:48 per mile, a stretch that carried him through the race's most even running. The middle miles brought a gradual fade, with pace drifting past 9:00 and then 10:00 by mile 18, before a tougher patch through miles 20-23 slowed him further. He answered with a strong close, dropping back into the 9:00s and finishing his final mile in 8:57, faster than anything he'd run since mile 14. That difficult patch fell right around the lululemon Power-Up Zone near mile 22.5, a tough spot to face after already covering more than 20 miles at Boulder's 5,000-plus feet of elevation. He closed it out with the traditional finish on the Pearl Street Mall in downtown Boulder.