Idaho Half Marathons
22 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 22 upcoming half marathons over the next 12 months. October is the busiest month for them, with 12. Most are around Boise, Coeur d'Alene, Malad City. The next one is Malad Valley Marathon on September 12 in Malad City.
- Sep 20263 races
- Oct 202612 races
- Nov 20261 race
- Apr 20272 races
- May 20273 races
- Jun 20271 race
September 2026
- Sat 9/12Malad Valley MarathonMalad City, ID · Marathon · Half Marathon · 10K · 5K · 1 Mile · from $15 · register ↗
- Sat 9/19Priest Lake MarathonPriest Lake, ID · 50K · Marathon · Half Marathon · 10K · from $30 · register ↗
- Sat 9/26St. Luke's FitOne 5K/10K/Half MarathonBoise, ID · 5K · 10K · Half Marathon · from $25 · register ↗
October 2026
- Sat 10/32026 Jackass Half Marathon & 5KKellogg, ID · Half Marathon · 5K · 1 Mile · register ↗
- Sun 10/4Moscow Mountain MadnessMoscow, ID · 50K · Half Marathon · 5 Miles · Trail · register ↗
- Sat 10/10Hayden Lake MarathonHayden Lake, ID · Marathon · Half Marathon · 6.5 Miles · 5K · 0.5 Miles · from $35 · register ↗
- Sat 10/10Rush Creek StampedeCambridge, ID · Half Marathon · 5K · 10K · from $40 · register ↗
- Sat 10/10Sasquatch ShuffleMcCall, ID · 50K · 30K · 20K · register ↗
- Sun 10/11City of Trees MarathonBoise, ID · Marathon · Half Marathon · 10K · 5K · from $20 · register ↗
- Sat 10/17Idaho Running DayBoise, ID · Marathon · Half Marathon · 10K · 5K · from $25 · register ↗
- Sat 10/24Eternal Surrender Half MarathonCoeur D Alene, ID · Half Marathon · 5K · 10K · from $35 · 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 · 5K · 1 Mile · 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 5/8Over 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 ↗
Planning a race
- Choosing a first marathonmoving up from the half, and picking a debut race
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