Ironman 70.3 Boulder route map

Ironman 70.3 Boulder: a 70.2 mi course through Boulder, CO. The map below shows the full route, including the start and finish.

Date
June 12, 2027
Location
Boulder, CO
Distance
70.2 mi
Field size
~2,200

Course map

The Ironman 70.3 Boulder course, 70.2 mi from start to finish.
Route map of the Ironman 70.3 Boulder course in Boulder, CO, 113 km

Make your own Ironman 70.3 Boulder poster

IRONMAN 70.3 BOULDER

June 2026

70.3 mi
Total
56 mi
Bike
13.1 mi
Run
1.2 mi
Swim

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

Create your Ironman 70.3 Boulder poster