Date: Sept. 28, 2025 Participant: Chengyu Hsu #21106 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

Consistently Steady with a Strong Finish Chengyu Hsu's race performance at the 2025 Boulderthon showcased consistent pacing and strategic racing tactics. Starting at a pace of 8:20 min/mile consistently through the first two miles placed them 967th overall. Throughout the race, Hsu demonstrated an ability to maintain a strong pace, with notable improvement in placement, peaking at 521st by mile 5, largely attributed to an impressive split pace of 8:08 min/mile their fastest mile split. Hsu completed the half marathon with a final time of 1:49:19, averaging an 8:20 min/mile pace overall. Noteworthy was the performance in the later stages, especially mile 12, completed in 7:45, highlighting Hsus capability to accelerate when needed, finishing strong and securing 118th in the M25-29 division. To further enhance performance, consider maintaining the mid-race split consistency observed in mile 5 and aim for reduced variability in mid-to-late sections.