Date: Sept. 28, 2025 Participant: Isabel Collins #21546 Race: 2025 Boulderthon Half Marathon Distance: 13.1 miles Weather: Perfect running weather with temperatures in the 50's to 70's and nice cloud cover

Consistent Pacing and Strategic Placement Isabel Collins completed the 2025 Boulderthon Half Marathon with a final time of 1:33:16, maintaining an average pace of 7:07 per mile over the 13.1-mile course. Her performance placed her in the top 6 in the Female 20-24 age division, out of numerous competitors. Notably, she gained a total of 59 places from the first to final split, with a notable advancement occurring around the 5-mile mark where she improved her overall position by more than 100 places. Throughout the race, Isabel showed consistency in her pacing with minimal variance between splits, a key strength in long-distance events. For instance, her fastest split was at mile 2 at 6:49 pace, while her slowest occurred at mile 8 with a pace of 7:17. Maintaining a pace closely aligned with her average time is a remarkable part of her strategy. Future racing could benefit from focusing on late-race energy management to further improve her final position.