Sat, Nov 14, 2026 · 9:00 AM · Boise, ID
Boise Half Marathon
Half Marathon
- Price
- $112.30
- Field size
- 900 · based on the organizer's entry cap
Half Marathons in Idaho
Every upcoming Half Marathon race we know about in Idaho. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Showing 12+ of 12 races · loading the full list…
Sat, Nov 21, 2026 · 8:00 AM · Boise, ID
Early Bird Turkey Trot 5K, 10K, 15K, & Half Marathon - Boise
5K10K15KHalf Marathon
- Price
- Free-$24.60
Sat, May 1, 2027 · 7:00 AM · Kellogg, ID
WICKED FAST MARATHON & HALF MARATHON IDAHO
Half MarathonMarathon
- Price
- $85.93-$107.28
Sun, May 2, 2027 · 6:30 AM · Boise, ID
Boise River Marathon
5K10KHalf MarathonMarathonflat and fast
- Price
- $38.10-$64.60
Sat, May 15, 2027 · 7:00 AM · Boise, ID
YMCA Famous Idaho Potato Marathon & Fun Runs
5K10KHalf MarathonMarathonflat and fast
- Price
- $33.63-$97.68
Sat, May 29, 2027 · 7:00 AM · Coeur d'Alene, ID
CDA Marathon
1M5K10KHalf MarathonMarathonCertified course · per organizer
- Price
- Free-$117.60
Fri, Jun 4, 2027 · 10:00 AM · Sandpoint, ID
Sandpoint Marathon
5K10KHalf MarathonMarathonflat and fast
- Price
- $48.70-$186.50
Sat, Jun 5, 2027 · 8:00 AM · Twin Falls, ID
Spirit of Magic Valley Half Marathon - 10K - 5K - Kids 1 Mile
1M5K10KHalf Marathon
- Price
- $86.30
Sat, Aug 14, 2027 · 10:00 AM · Kellogg, ID
Conquer The Peaks of Silver Mountain 1/2 Marathon, 5K, 13K
5K8MHalf Marathon2,000 ft gain
- Price
- $101.70-$239.50
- Field size
- 35 · basis unavailable
Sat, Sep 4, 2027 · 6:15 AM · Pocatello, ID
27th Annual Pocatello Marathon
0.2M1M5K10KHalf MarathonMarathon
- Price
- $10.54-$64.60
- Field size
- 1,078 · based on the organizer's entry cap
Sat, Sep 11, 2027 · 8:00 AM · Malad City, ID
Malad Valley Marathon
1M5K10KHalf MarathonMarathon
- Price
- $15-$70
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