Date: Sept. 28, 2025 Participant: Simon Zarzecki #32567 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

Impressive Division Finish Simon Zarzecki, a 13-year-old runner from Highlands Ranch, CO, completed the 2025 Boulderthon 10K with a final time of 51:59 and an average pace of 8:23 min/mile. Notably, he placed 3rd in the M14 & Under division despite being the youngest contender, demonstrating strong competitive spirit in a field of 2,428 participants. His performance is highlighted by steady pacing throughout the race, maintaining a consistent sub-8:30 pace for most of the event. Analyzing the splits, Simon started strongly with an evenly paced first mile at 7:50 min/mile, then maintained a sub-8 minute pace for the second mile. Although there was a slight decrease in pace, with his splits ranging from 8:14 min/mile to 8:55 min/mile, Simon maintained division placement, showing resilience and consistency. For improvement, focus could be on maintaining a more consistent pace in the later miles to enhance performance further in future races.