Race Calendar in Idaho, United States

City of Trees Marathon

Boise, Idaho, United States

11 Oct, 2026 (Sun)

$45.00 - $75.00

Running

Marathon Half-Marathon 10K 5K

Idaho Running Day

Boise, Idaho, United States

17 Oct, 2026 (Sat)

$40.00 - $80.00

Running

Marathon Half-Marathon 10K 5K

YMCA Halloween Freaky 5K and Monster Mile

Boise, Idaho, United States

24 Oct, 2026 (Sat)

$30.00 - $35.00

Running

5K 1.6K

Haunted Half Marathon and 5k by Run the Undergrad

Rexburg, Idaho, United States

24 Oct, 2026 (Sat)

$10.00 - $60.00

Running

5K Half-Marathon

The CapEd Downtown Boise YMCA Grand Opening Walk

Boise, Idaho, United States

07 Nov, 2026 (Sat)

$15.00

Running

1.6K

Boise Half Marathon

Boise, Idaho, United States

14 Nov, 2026 (Sat)

$60.00

Running

Half-Marathon

Turkey Day 5K Run/Walk - Caldwell

Caldwell, Idaho, United States

26 Nov, 2026 (Thu)

$18.00 - $40.00

Running

5K

Boise Turkey Day 5K Run/Walk

Boise, Idaho, United States

26 Nov, 2026 (Thu)

$18.00 - $40.00

Running

5K

YMCA Thanksgiving Leftovers Fun Run

Boise, Idaho, United States

28 Nov, 2026 (Sat)

$10.00 - $15.00

Running

5K 1.6K

Santa Run

Coeur d'Alene, Idaho, United States

12 Dec, 2026 (Sat) – 19 Dec, 2026

Free - $45.00

Running

5K 1.6K 10K 0.8K +3

Holiday Hot Cocoa Hustle 5K

Eagle, Idaho, United States

12 Dec, 2026 (Sat)

$25.00

Running

5K

The YMCA Christmas Run presented by FORD

Boise, Idaho, United States

19 Dec, 2026 (Sat)

$30.00 - $35.00

Running

1.6K 3.2K 9.7K