Results/Photos

Date: Sept. 27, 2026 Participant: Costner Hernandez #40998 Race: 2026 Boulderthon 5K Distance: 3.1 miles

Strong Start Fuels a Sub-7:10 5K in Downtown Boulder Costner Hernandez, 16, of Dolores, CO, finished the 2026 Boulderthon 5K in 22:04, an average pace of 7:07 per mile, placing 117th overall out of the field of 2,677 and 91st among men. Hernandez opened fast, covering the first mile in 6:51 before clipping to 6:33 through mile two, his quickest mile of the race. The final mile slowed to 7:59, tempering the overall pace to 7:07 per mile, but the early speed carried him to a solid finish on the Pearl Street Mall in downtown Boulder, a course that finishes every distance in the same historic setting.