Results/Photos

Date: Sept. 27, 2026 Participant: Olivia Gronseth #31536 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Strong Start Carries a Steady 10K Effort Olivia Gronseth finished her 10K in 55:22, an 8:55 min/mile average pace. Her race opened briskly, with an 8:41 opening mile and a strong second mile at 8:27 her fastest of the day. Cumulative pace held tight between 8:34 and 8:44 through the middle miles before easing slightly, with the final mile settling near 10:01 as she carried through to the finish. Boulder sits at over 5,000 feet of elevation, a backdrop for this steady, evenly-paced run through downtown streets before the finish on the Pearl Street Mall. With her second mile as the clear highlight, Olivia might look to sustain that same rhythm a bit longer next time a small, optional target for an already well-managed race.