Results/Photos

Date: Sept. 27, 2026 Participant: John Marriott #12121 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Early Miles Give Way to a Tougher Back Stretch John Marriott finished the 2026 Boulderthon Marathon in 4:25:28, compared with his 3:56:38 the previous year. His opening miles were his strongest: through mile 8 he held a cumulative pace of about 9:11 per mile, a notably steadier and quicker stretch than what followed. From there his cumulative pace gradually eased toward 9:43 by mile 20, before the final 10K brought the sharpest slowdown of the day, with cumulative pace slipping to 10:10 by mile 25 as his per-mile splits climbed into the 11- and 12-minute range. Running at Boulder's altitude of over 5,000 feet, Marriott closed out the race on the Pearl Street Mall, finishing with a quicker final mile at 9:24 after the tougher middle-to-late miles. His first eight miles stand as the clear highlight of his effort, a pace he might look to extend further into the race next time.