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Upcoming Marathon Races Near Valley County, ID

Boise Marathon logo

Boise Marathon

Boise, ID

Saturday, June 20th, 2026

Featured
Marathon
Half
10K
View details for race Boise Marathon
City of Trees Marathon logo

City of Trees Marathon

Boise, ID

Sunday, October 11th, 2026

Marathon
Half
10K
View details for race City of Trees Marathon
Idaho Running Day logo

Idaho Running Day

Boise, ID

Saturday, October 17th, 2026

Marathon
Half
10K
View details for race Idaho Running Day
Boise River Marathon logo

Boise River Marathon

Boise, ID

Sunday, May 2nd, 2027

Marathon
Half
10K
Fast
View details for race Boise River Marathon

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YMCA Famous Idaho Potato Marathon & Fun Runs logo

YMCA Famous Idaho Potato Marathon & Fun Runs

Boise, ID

Saturday, May 15th, 2027

Marathon
Half
10K
View details for race YMCA Famous Idaho Potato Marathon & Fun Runs

Explore more in Valley County, ID

Distances:

5K10KHalf MarathonMarathon

Months:

JuneJulyAugust

Tags:

TrailBoston QualifiersFast Courses

State:

All Idaho races