Results/Photos

Date: Sept. 27, 2026 Participant: Bonnie Santistevan #32900 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Fast Start Fades Late in Steady 10K Effort Bonnie Santistevan completed the 10K in 59:44, an overall pace of 9:38 per mile. He opened strong, covering the first mile in 7:59 before settling into a steadier rhythm through the middle miles, with his cumulative pace easing to 9:12 by mile five. The final mile slowed to 11:23, the race's slowest stretch, as the early pace proved hard to sustain across the full distance. The opening mile stood out as his fastest of the day, nearly a minute and a half quicker than his eventual overall pace. Running at Boulder's altitude of over 5,000 feet, Santistevan's early speed reflects a strong start; dialing back that opening effort slightly could help him carry more pace into the closing miles next time.