IRONMAN 70.3 Boulder

IRONMAN 70.3 Boulder course map: the bike and run routes and their elevation

IRONMAN 70.3 Boulder: bike 90.5 km, 670 m of climbing; run 21.6 km, 110 m of climbing. The bike and run on a map, with the elevation along the way and the climbing.

Next race 12 June 2027 in Boulder, Colorado, USA; 60 World Championship slots; a course 1.3% slower than the median one; 1,450 finishers in 2026.

Every age group, the swim, bike and run, and your own result: free with an account. Sign up free

• Slots and qualifying times
• How 2026 played
• 2026 results
• Course map
• Who races
• Course speed
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