Race Calendar in Idaho, United States

Hayden Sprint Triathlon

Hayden, Idaho, United States

11 Jul, 2026 (Sat)

Christmas 5K/10K/Half Marathon in July - Boise

Boise, Idaho, United States

11 Jul, 2026 (Sat)

$35.00 - $55.00

Running

5K 10K Half-Marathon +2

Girls on the Run Mile

Boise, Idaho, United States

11 Jul, 2026 (Sat)

$25.00

Running

1.6K

Thunderhill Showdown 5K Run/Walk

Lapwai, Idaho, United States

12 Jul, 2026 (Sun)

$35.00

Running

5K

Christmas 5K/10K/Half Marathon in July - Idaho Falls

Idaho Falls, Idaho, United States

12 Jul, 2026 (Sun)

$40.00 - $60.00

Running

5K 10K Half-Marathon +2

Mesa Falls Marathon

Ashton, Idaho, United States

18 Jul, 2026 (Sat)

$15.00 - $85.00

Running

Marathon Half-Marathon 10K 5K +1

Running for Children's Rights to Both Parents - 7 of 50 Half Marathons in 50 States - Idaho

Ashton, Idaho, United States

18 Jul, 2026 (Sat)

$50.00 - $1,000.00

Running

Half-Marathon 5K

Founders Day Fun Run

Lava Hot Springs, Idaho, United States

25 Jul, 2026 (Sat)

$15.00

Running

5K 1.6K

Baby Foot 5K

Sandpoint, Idaho, United States

25 Jul, 2026 (Sat)

$35.00

Running

5K

Littlefoot Triathlon - CDA

Coeur D Alene, Idaho, United States

25 Jul, 2026 (Sat)

Boise Front Trail Festival

Boise, Idaho, United States

31 Jul, 2026 (Fri) – 01 Aug, 2026

$25.00 - $75.00

Trail running

3.2K 8K 16.1K

Shark Attack Open Water Swim 2026

Sandpoint, Idaho, United States

31 Jul, 2026 (Fri)

$30.00

Swimming

Shark Attack Open Water Swim