Results/Photos

Date: Sept. 27, 2026 Participant: Stacey Kim #24103 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Even Effort Powers a Solid Half-Marathon Finish Stacey Kim crossed the line in 2:07:59, an average pace of 9:46 per mile. Her race opened at 9:58 for the first mile, then tightened into the low-9:20s to 9:30s through miles 3 through 6, her most consistent stretch of the day. Mile 4 stood out as her fastest, clocked at 9:16. Pace held steady through the middle miles before a brief rise to 10:40 at mile 11, followed by a closing mile of 10:35 as she made her way into the Pearl Street Mall finish. Kim's steady middle miles came on the 2026 half marathon course, redesigned this year with net elevation gain cut nearly 50 percent, from 384 to 203 feet. That trimmed profile, still run at Boulder's mile-high altitude, suited the rhythm she found across the race's midsection.