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Boise Ironman 70.3 - Bike Course

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Boise Ironman 70.3
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Bike 56 miles

The Boise Ironman 70.3 bike course is 56 miles single loop course. The bike course is a mix of flat stretches and rolling inclines and includes a challenging climb to the Birds of Prey Sanctuary. Three
(3) on-course aid stations will keep the athletes well fueled during the bike portion.

Elevation Total(ft)
Total Elevation 4,784
Elevation Gain 2,223
Elevation Loss 2,561
Start Elevation 3,055
Finish Elevation 2,718
Min. Elevation 2,717
Max. Elevation 3,128
Grade Average % Maximum %
Overall Grade 0.0  
Ascent 2.0 11.8
Descent -1.4 -10.4
Distance Distribution miles % of total
Distance 56 100%
Ascent 6.75 12%
Descent 8.25 15%
Flats 41 73%

 

Beware that there is a mandatory bike check-in at noon on Saturday. Bikes will not be allowed out of T1 once bike check-in begins on Saturday.

Aid Stations: 3 aid stations. Aid stations provide:

  • Gatorade Endurance Formula/ Orange Flavor
  • Water
  • PowerBar Gel
  • PowerBar