Found 36 races near Ada County, ID

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JUL
31

Horseshoe Bend, ID
• 22.0 miles
$30 -$95
Two-day trail festival at Bogus Basin with a Friday Hill Climb and Saturday 5 & 10 mile trail races.
5m 10m
32
AUG
1

Kuna, ID
• 11.8 miles
$20 -$30
A 5K fun run and walk hosted by the Kuna High cross country team during Kuna Days.
1m 5K
68
AUG
1

Emmett, ID
• 23.5 miles
$25
Race Through the Trees In Montour Experience a unique running adventure through Montour Wildlife State Park, where history meets nature. This scenic 5K course winds through the grounds of a...
5K
12
AUG
15

Eagle, ID
• 10.2 miles
$25 -$50
The 8th annual Aaron Butler Memorial Purple Heart Run (ABMPHR) will be held on Saturday, August 15th, 2026 at Eagle Island State Park and surrounding trail system. Eagle Island has done some...
5K 10K
32
AUG
22

Boise, ID
• 2.6 miles
$50 -$65
Join us on August 22nd for the 2026 Foothills XC12K, an exciting cross-country race in the Boise Foothills. With 12K and 5K courses starting at 8:00 AM at the Military Reserve, this event...
5K 12K
46
AUG
23

Boise, ID
• 16.5 miles
$35 -$65
Beat the heat and treat yourself at the Popsicle 5K/10K/Half Marathon—a sweet celebration of summer miles and frozen rewards. Whether you’re racing the speedy 5K, cruising through the 10K, or...
5K 10K Half Marathon
8
AUG
29

Boise, ID
• 19.9 miles
$30
About the EventJoin the LESS Society for our third annual Table Rock Run, a community celebration of health, perseverance, and purpose. This scenic event brings together healthcare professionals,...
3m
25
AUG
29

Nampa, ID
• 2.1 miles
$25 -$45
Community 5K/10K run/walk in Nampa, ID benefiting the Boys & Girls Club of Canyon County.
5K 10K
49
SEP
12

Mountain Home, ID
• 41.9 miles
$40 -$45
Participants will run or hike a challenging 6.2-mile course or a 2.9-mile out-and-back course around two adjacent, symmetrical volcanic pit craters, about 8 miles northwest of Mountain Home,...
42
SEP
12

Payette, ID
• 38.2 miles
$10 -$45
What is a Tunnel to Towers Run & Walk? The Tunnel to Towers Run & Walk Series was created to honor the heroic life and death of Stephen Siller,  a New York City firefighter (FDNY) who lost his...
5K
26
SEP
26

Boise, ID
• 18.1 miles
$35 -$70
ST.LUKE'S FITONE 5K – 10K – HALF MARATHONSeptember 26th, 2026
5K 10K Half Marathon
57
OCT
4

Meridian, ID
• 8.5 miles
$30 -$35
Run for Resilience Ostomy 5k in Meridian, ID, benefiting UOAA.
5K
36
OCT
4

Boise, ID
• 17.7 miles
$20 -$40
5K run/walk in Boise honoring Sue B Newby and raising domestic violence awareness.
5K
46
OCT
4

Boise, ID
• 17.9 miles
$25 -$30
Run, Fun Win! Everyone who participates in the YMCA Harrison Classic is a winner! Take a jog down Boise's scenic Harrison Boulevard. This one-mile kids run is all-inclusive and family-friendly....
64
OCT
11

Boise, ID
• 17.3 miles
$45 -$125
Sunday, October 11, 2026Course Maps will be updated once details have been finalized. GREAT SWAG and T-SHIRT DEADLINEComfiest long sleeve t-shirt, swag thanks to our amazing sponsors, and...
5K 10K Half Marathon Marathon
115
OCT
17

Boise, ID
• 25.4 miles
$45 -$125
2026 Idaho Running Day (October 17) is a great event for all athletes with a 5k, 10k, Half Marathon, and Marathon. It takes place along the picturesque Boise Greenbelt, from Lucky Peak Reservoir...
5K 10K Half Marathon Marathon
62
OCT
24

Boise, ID
• 17.3 miles
$30 -$80
YMCA Halloween Run presented by Micron Get ready for a frightfully fun time at the YMCA Halloween Run!  Choose between the Half Marathon, Freaky 5K, or Monster Mile and show off your spookiest...
5K Half Marathon
21
NOV
7

Boise, ID
• 17.6 miles
$20 -$155
This is The Summit. The Ultra is the final event in the Zero Dark Thirty Run Series — a progressive program designed to take participants from their first mile to 30 miles over the course of the...
1m 5K 10K Half Marathon 30m
35
NOV
8

Nampa, ID
• 1.7 miles
$15 -$20
We’re excited to invite you to the first ever CAES 5K and 1-Mile Fun Run! This event is open to everyone — runners, walkers, families, and friends. It’s a great way to enjoy some fresh air, get...
1m 5K
11
NOV
14

Boise, ID
• 17.6 miles
$45 -$105
Half marathon in Boise, ID along the Boise Greenbelt system.
Half Marathon
63