Date: Sept. 28, 2025 Participant: Rebecca Spiegel #13330 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

First Half Steady, Second Half Slower Rebecca Spiegel's performance at the 2025 Boulderthon Marathon displayed a consistent start with an initial mile split of 8:52 min/mile. She maintained a steady pace through the first five miles, averaging around 8:50 min/mile. Her ranking fluctuated, reaching a peak position of 68th in her gender by the fifth mile. It's noteworthy that Rebecca achieved her fastest splits in the early sections, with a solid pace of 8:39 min/mile at miles 2 and 10. In contrast, the latter half of the race showed a noticeable drop in pace, increasing to over 10 minutes per mile by the 19th mile. The final miles saw her places adjust to 20th in the F35-39 division and 186th among female runners. Identifying the key stages of fatigue could help to target specific training that might enhance overall endurance and pace consistency in future events. Well done, Rebecca, on completing the marathon!