Boulderthon Marathon route map

Boulderthon Marathon: a 26.2 mi course through Boulder, CO. The map below shows the full route, including the start and finish.

Date
September 27, 2026
Location
Boulder, CO
Distance
26.2 mi
Elevation gain
571 ft

Course map

The Boulderthon Marathon course, 26.2 mi from start to finish.
Route map of the Boulderthon Marathon course in Boulder, CO, 42.2 km

Elevation profile

The highest point on the course is 5,397 ft, the lowest 5,167 ft.

5,166 ft5,281 ftHighest point 5,396 ft0 mi7 mi13 mi20 mi26 mi
Distance · Elevation gain

Make your own Boulderthon Marathon poster

BOULDERTHON MARATHON

September 2025

26.2 mi
Distance
571 ft
Elevation

The course above, printed for your wall — your colors, your finish time. Pick a size, framed or unframed.

Create your Boulderthon Marathon poster