Date: Sept. 28, 2025 Participant: Callie Selchau #33469 Race: 2025 Boulderthon 10K Distance: 6.2 miles Weather: Perfect running weather with temperatures in the 50's to 70's and nice cloud cover

Consistent Effort and Strategic Gains Callie Selchau maintained a steady effort throughout the 2025 Boulderthon 10K, finishing with an overall time of 1:01:57. Her pace remained consistent, with an average of 9:59 minutes per mile across the 6.2-mile course. In the first half, her splits were notably steady, clocking in at 9:35, 9:34, and 9:38 minutes per mile, respectively. Even though the pace slowed slightly in the latter half, she achieved her best division position at mile 5, placing 50th in the F30-34 age group. Analyzing the data further, Callie's placement showed some fluctuation, but she managed a strong finish in her category, securing 75th place out of 151 age group competitors. It's worth noting her consistent ranking in gender place, finishing 349th out of 933 participants. Focus on maintaining pacing in the final quarter could refine future performance. The strong first half indicates that endurance and speed work could balance out the latter race segments.