Date: Sept. 28, 2025 Participant: Kaylee Baca #12386 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 opening, mid-race fade, late rebound near four hours 2025 Boulderthon Marathon: 4:00:51 for 26.2 mi (9:11/mi). Early rhythm 8:46–8:49 from miles 1–4, then 8:42 at mile 5. Miles 8–10 averaged 8:36 with the day’s fastest split at mile 10 (8:25). Reached mile 13 in 1:54:08. Pace drifted after mile 16, including 10:08 at 17 and 10:13–10:24 at 21–22 (slowest at 22), followed by a rebound to 9:31 and 9:06 over miles 25–26. Coaching notes: cap the mile-10 surge and aim for steadier first-half execution; practice progression long runs and marathon-pace blocks (e.g., 3x5 mi at MP with the final set slightly faster) to reinforce a negative split. Compared with last year’s marathon (3:51:11, 8:49/mi), this was +9:40 total and +0:22/mi—closing a 51-second gap would break four hours.