Results/Photos

Date: Sept. 27, 2026 Participant: Aiden Kim #31464 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Strong Middle Miles Power a Solid 10K Finish Aiden Kim, 15, of Aurora, CO, finished the 10K in 59:37, an average pace of 9:36 per mile. He opened with a 10:04 first mile before finding his rhythm, dropping to 9:23 and then 8:43 his fastest mile of the day through miles two and three. He held in the low 9:20s through mile five before the pace eased in the final mile. The race finished on the Pearl Street Mall in downtown Boulder, a fitting close to a race that saw his best effort come right in the middle of the course. Running at over 5,000 feet of elevation, Kim's third-mile surge stood out as the highlight of his effort, showing a strong ability to accelerate once settled into the race.