Race Calendar in Idaho, United States

Bear Lake Brawl Triathlon

St Charles, Idaho, United States

19 Sep, 2026 (Sat)

$100.00 - $220.00

Triathlon, Duathlon, Swimrun, Aquabike

25.6K Ultra 23K +5

Top of Tamarack

Tamarack, Idaho, United States

26 Sep, 2026 (Sat)

$75.00

Cycling, Running

24.1K

St. Luke's FitOne 5K/10K/Half Marathon

Boise, Idaho, United States

26 Sep, 2026 (Sat)

$25.00

Running

5K 10K Half-Marathon

Idaho High Mountain Triathlon

Yellow Pine, Idaho, United States

03 Oct, 2026 (Sat)

$100.00 - $180.00

Triathlon

Ultra +1

YMCA Harrison Classic Kids Run presented by Blue Cross of Idaho

Boise, Idaho, United States

04 Oct, 2026 (Sun)

$25.00

Running

1.6K

Run for the Angels Memorial Run and Family Day

Coeur D Alene, Idaho, United States

04 Oct, 2026 (Sun)

$25.00

Running

4K

SueB 5k

Boise, Idaho, United States

04 Oct, 2026 (Sun)

$25.00

Running

5K

10th Annual Meridian, ID Ostomy 5k

Meridian, Idaho, United States

04 Oct, 2026 (Sun)

$30.00

Running

5K

Rush Creek Stampede

Cambridge, Idaho, United States

10 Oct, 2026 (Sat)

$40.00 - $55.00

Running

Half-Marathon 5K 10K

Hayden Lake Marathon

Hayden Lake, Idaho, United States

10 Oct, 2026 (Sat)

Free - $125.00

Running

Marathon Half-Marathon 10.5K 5K +2

Blackfoot Tater Trot

Blackfoot, Idaho, United States

10 Oct, 2026 (Sat)

$40.00

Running, Walking

10K 5K

River & Rails Donkey Dash

Cambridge, Idaho, United States

10 Oct, 2026 (Sat)

$65.00

Running

4.8K 9.7K 14.5K +2