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Races in Idaho
34 Events
Endurance Races in Idaho
Trehko tracks 34 endurance events in Idaho, including 31 Running events, 2 Triathlon events, 1 Cycling event. Whether you're searching for your first 5K, a Boston qualifier marathon, a local triathlon, or a trail ultra, Idaho has a race for every athlete. Use Trehko to compare registration fees and deadlines side by side, save your target races, and get automated reminders before registration opens or closes. All races listed below link directly to their official registration pages.
All 34 Races in Idaho
10th Annual Meridian, ID Ostomy 5k — Meridian, 5K 2026 Walk,Run,Read for Literacy! Sept. 19th — Coeur d'Alene, 5K Beaverhead Endurance Runs 100K and 55K — Salmon, 100K Boise Half Marathon — Boise, Half Marathon Boise River Marathon — Boise, Marathon Caribou County Fair 5k — Grace, 5K Christmas 5K/10K/Half Marathon in July - Boise — Boise, Half Marathon Christmas 5K/10K/Half Marathon in July - Idaho Falls — Idaho Falls, Half Marathon City of Trees Marathon — Boise, Marathon Dizzy Horse, A Winter Backyard Ultra — Idaho Falls, Ultra Eternal Surrender 5K, 10K and Half Marathon — Coeur D Alene, Half Marathon Halloween Hustle — Coeur d'Alene, Half Marathon Haunted Half Marathon and 5k by Run the Undergrad — Rexburg, Half Marathon Hayden Lake Marathon — Hayden Lake, Marathon Idaho Running Day — Boise, Marathon Ironman 70.3 Boise — Boise, Ironman 70.3 Ironman 70.3 Coeur d'Alene — Coeur d'Alene, Ironman 70.3 Kick for Kenya 5K — Boise, 5K Kuna Days 5K Run and Walk — Kuna, 5K Malad Valley Marathon — Malad City, Marathon Mesa Falls Marathon — Ashton, Marathon Outlaw Trail Ultra Half Marathon — Hansen, Ultra Pocatello Marathon — Pocatello, Marathon Priest Lake Marathon — Priest Lake, 50K Race to Robie Creek® — Boise, Half Marathon Rebecca's Private Idaho — Ketchum, Gravel Robie Creek Half Marathon — Boise, Half Marathon Running for Children's Rights to Both Parents - 7 of 50 Half Marathons in 50 States - Idaho — Ashton, Half Marathon Rush Creek Stampede — Cambridge, Marathon St. Luke's FitOne 5K/10K/Half Marathon — Boise, Half Marathon The YMCA Christmas Run presented by FORD — Boise, 1 Mile The YMCA Easter Run — Boise, 5K Wilson Creek Frozen 50k — Melba, 50K YMCA Halloween Run presented by Micron — Boise, Half Marathon
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