Date: Sept. 28, 2025 Participant: Nathan Carkoski #11044 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

3:34:06 at 8:10/mi, 356 Places Gained After Mile 6 26.2 miles in 3:34:06 (8:10/mi). Overall 181/2678; M15–19: 10th. Fastest mile 6:57 (mile 12); slowest miles 9:57 (miles 5–6) and 10:18 (mile 24). Second half ~2 minutes slower than first. Places improved from 537 at mile 6 to 181 at the finish. Coaching notes: Smooth the early 10K to avoid 9:57 dips; target 8:05–8:15/mi through mile 6. Maintain the strong mid-race rhythm (miles 7–12 averaged ~7:30/mi) while keeping effort steady. To strengthen the final 5K (mile 24 at 10:18), add fast-finish long runs and marathon-pace progressions (e.g., last 6–8 miles at 8:05–8:10/mi). Aim for an ~60–90s positive split.