Idaho Half Marathons
22 upcoming half marathons across Idaho, updated nightly. Want radius search and maps? Open these in the Race Finder.
August 2026
- Sun 8/23Popsicle 5K/10K/Half - BoiseBoise, ID 路 5K 路 10K 路 Half Marathon
September 2026
- Sat 9/12Malad Valley MarathonMalad City, ID 路 Marathon 路 Half Marathon 路 10K 路 5K 路 1 Mile
- Sat 9/19Priest Lake MarathonPriest Lake, ID 路 50K 路 Marathon 路 Half Marathon 路 10K
- Sat 9/26St. Luke's FitOne 5K/10K/Half MarathonBoise, ID 路 5K 路 10K 路 Half Marathon
October 2026
- Sat 10/32026 Jackass Half Marathon & 5KKellogg, ID 路 Half Marathon 路 5K 路 1 Mile
- Sun 10/4Moscow Mountain MadnessMoscow, ID 路 50K 路 Half Marathon 路 Other
- Sat 10/10Hayden Lake MarathonHayden Lake, ID 路 Marathon 路 Half Marathon 路 10K 路 5K 路 Other
- Sat 10/10Sasquatch ShuffleMcCall, ID 路 50K 路 Other 路 Half Marathon
- Sat 10/10Rush Creek StampedeCambridge, ID 路 Half Marathon 路 5K 路 10K
- Sun 10/11City of Trees MarathonBoise, ID 路 Marathon 路 Half Marathon 路 10K 路 5K
- Sat 10/17Idaho Running DayBoise, ID 路 Marathon 路 Half Marathon 路 10K 路 5K
- Sat 10/24YMCA Halloween Run presented by MicronBoise, ID 路 Half Marathon 路 5K 路 1 Mile
- Sat 10/24Haunted Half Marathon and 5k by Run the UndergradRexburg, ID 路 5K 路 Half Marathon
- Sat 10/24Eternal Surrender Half MarathonCoeur D Alene, ID 路 Half Marathon
- Sun 10/25Halloween HustleCoeur d'Alene, ID 路 Half Marathon 路 10K 路 5K 路 Other
- Sat 10/31Fall Creek BeastSwan Valley, ID 路 50K 路 Half Marathon
November 2026
- Sat 11/14Boise Half MarathonBoise, ID 路 Half Marathon
April 2027
- Sat 4/17Race to Robie Creek庐Boise, ID 路 Half Marathon
- Sat 4/24Spring DashCoeur d'Alene, ID 路 Half Marathon 路 10K 路 5K
May 2027
- Sun 5/2Boise River MarathonBoise, ID 路 Marathon 路 Half Marathon 路 10K 路 5K
- Sat 5/8Over the Top Trail RacePocatello, ID 路 Other 路 Half Marathon 路 10K 路 5K
- Sat 5/15YMCA Famous Idaho Potato Marathon & Fun RunsBoise, ID 路 Marathon 路 Half Marathon 路 10K 路 5K
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