Date: Sept. 28, 2025 Participant: Christian Castillo #12623 Race: 2025 Boulderthon Marathon Distance: 26.2 miles Weather: Perfect running weather with temperatures in the 50's to 70's and nice cloud cover

Steady Start with Opportunities in Pacing Strategy Christian Castillo finished the 2025 Boulderthon Marathon with a total time of 4:07:11, averaging a pace of 9:26 min/mile over the 26.2-mile distance. He placed 562nd overall out of 2678 participants and held the 78th spot in the M30-34 division. Christian experienced varied pacing throughout the race, with stronger performances evident in several splits. Notably, he achieved his fastest split of 5:07 min/mile between the 4th and 5th miles, significantly climbing to the 301st position overall during that segment. In the early to mid portions of the race, Christian maintained a consistent pace ranging from 8:30 to 8:40 min/mile, effectively placing him in the top third of his division. However, there appears to be a noticeable shift in pacing beyond the 20-mile mark, where splits widened to over 11:00 min/mile. Maintaining an even pace across these later miles could be a focus for upcoming races to improve overall efficiency and placement.