Results/Photos

Date: Sept. 27, 2026 Participant: Karis Boonzaaijer #40080 Race: 2026 Boulderthon 5K Distance: 3.1 miles

Strong Middle Mile Fuels Solid 5K Finish Karis Boonzaaijer finished the 2026 Boulderthon 5K in 23:59, an overall pace of 7:44 per mile. Her race unfolded in three distinct phases: an opening mile at 7:42, a strong surge to 6:30 for mile two, and a final mile that eased to 8:52 as she closed out the course. That middle mile stood out as her standout stretch, showing a notable gear change mid-race before settling in to the finish on the Pearl Street Mall in downtown Boulder.