Results/Photos

Date: Sept. 27, 2026 Participant: Seamus Mccormick #12107 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Early Pace Fades Late in the Marathon Seamus Mccormick covered the marathon in 4:16:09, an average pace of 9:46 per mile. His race unfolded in two distinct halves: a steady, controlled climb through the first 20 miles, holding cumulative pace between 8:40 and 8:53 per mile, followed by a marked slowdown over the final 10K as splits stretched into the 11- and 13-minute range. Miles 11 through 17 stood out as his most efficient stretch, with cumulative pace tightening to 8:418:45 per mile despite Boulder's altitude above 5,000 feet. That effort carried him past the marathon's lululemon Power-Up Zone near mile 22.5, though this is also where his pace loosened most, with a 13:53 split marking the race's toughest mile. A touch more reserve through the middle miles could help him carry that early rhythm further into the closing stretch next time.