Results/Photos

Date: Sept. 27, 2026 Participant: Isabella Laiosa #13284 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Start Fuels a Steady Marathon Effort Isabella Laiosa completed the marathon in 4:35:00, averaging 10:29 per mile. She opened fast, clocking 8:28 for the first mile and holding pace in the 8:30s to 9:20s range through mile 12, reaching the halfway point near a 9:20 average. From mile 13 onward, her per-mile splits eased into the 10- to 13-minute range, with miles 21-23 marking the slowest stretch of the race before she picked the pace back up to 10:23 for the final mile. Her most consistent running came across miles 1 through 12, where she never slipped slower than 9:20 per mile despite Boulder's elevation above 5,000 feet. That opening stretch set up a solid closing kick, and she carried that momentum onto the historic Pearl Street Mall for the finish.