Results/Photos

Date: Sept. 27, 2026 Participant: Juan Perez #21509 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady Early Pace Fades Late in Boulder Half Juan Perez completed the 2026 Boulderthon Half Marathon in 1:50:06, an 8:24/mile average pace. He opened aggressively, covering the first three miles in 23:20 (about 7:46/mile pace), then settled into a steadier rhythm through the middle miles before slowing over the closing stretch, with miles 7 through 11 each landing between 8:39 and 9:37. His fastest mile came early, mile 3, in 7:42, reflecting the strong start before the pace gradually eased over the second half of the race. Perez's race unfolded at Boulder's altitude of over 5,000 feet, a demanding backdrop for any half marathon effort. He crossed the finish line on the historic Pearl Street Mall in downtown Boulder, capping a race that began strong and gradually settled into a more conservative closing pace.