Idaho Half Marathons
19 upcoming half marathons across Idaho, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: half marathons in Idaho
Idaho has 19 upcoming half marathons over the next 12 months. Among complete calendar months, May 2027 has the most listed races, with 4. Most are around Boise, Coeur d'Alene, Sandpoint. The next one is Eternal Surrender Half Marathon on October 24 in Coeur D Alene.
- Oct 20265 races
- Nov 20261 race
- Apr 20272 races
- May 20274 races
- Jun 20272 races
- Aug 20272 races
- Sep 20273 races
October 2026
- Sat 10/24Eternal Surrender Half MarathonCoeur D Alene, ID · Half Marathon · 5K · 10K · from $35 · registration closed · register ↗
- Sat 10/24Haunted Half Marathon and 5k by Run the UndergradRexburg, ID · 5K · Half Marathon · from $10 · register ↗
- Sat 10/24YMCA Halloween Run presented by MicronBoise, ID · Half Marathon · 1 Mile · 5K · from $30 · register ↗
- Sun 10/25Halloween HustleCoeur d'Alene, ID · Half Marathon · 10K · 5K · 0.5 Miles · from $20 · register ↗
- Sat 10/31Fall Creek BeastSwan Valley, ID · 50K · Half Marathon · register ↗
November 2026
- Sat 11/14Boise Half MarathonBoise, ID · Half Marathon · from $45 · register ↗
April 2027
- Sat 4/17Race to Robie Creek®Boise, ID · Half Marathon · from $75 · registration closed · register ↗
- Sat 4/24Spring DashCoeur d'Alene, ID · Half Marathon · 10K · 5K · from $35 · register ↗
May 2027
- Sat 5/8Long Bridge Half-MarathonSandpoint, ID · Half Marathon · 10K · 5K · from $25 · register ↗
- Sat 5/8Over the Top Trail RacePocatello, ID · 30K · Half Marathon · 10K · 5K · Trail · register ↗
- Sat 5/15YMCA Famous Idaho Potato Marathon & Fun RunsBoise, ID · Marathon · Half Marathon · 10K · 5K · from $30 · register ↗
- Sat 5/29CDA MarathonCoeur d'Alene, ID · Marathon · Half Marathon · 10K · 5K · 1 Mile · from $20 · register ↗
June 2027
- Fri 6/4Sandpoint MarathonSandpoint, ID · 5K · 10K · Half Marathon · Marathon · from $45 · register ↗
- Sat 6/19Race the WolfSandpoint, ID · Marathon · Half Marathon · 5 Miles · 1 Mile · from $30 · register ↗
August 2027
- Sat 8/14Conquer The Peaks of Silver Mountain 1/2 Marathon, 5K, 13KKellogg, ID · Half Marathon · 5K · 8 Miles · Trail · from $95 · register ↗
- Sun 8/22Popsicle 5K/10K/Half - BoiseBoise, ID · 5K · 10K · Half Marathon · from $35 · registration closed · register ↗
September 2027
- Sat 9/427th Annual Pocatello MarathonPocatello, ID · Marathon · Half Marathon · 10K · 5K · 1 Mile · from $8 · register ↗
- Sat 9/11Malad Valley MarathonMalad City, ID · Marathon · Half Marathon · 10K · 5K · 1 Mile · from $15 · register ↗
- Sat 9/18Priest Lake MarathonPriest Lake, ID · 50K · Marathon · Half Marathon · 10K · from $30 · register ↗
Planning a race
- Choosing a first marathonmoving up from the half, and picking a debut race
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