# Marathon Races in Idaho (2026)

> 9 upcoming Marathon races across Idaho.

- **Page:** https://runthis.run/races/idaho/marathon

## Races

- **[Malad Valley Marathon](https://runthis.run/event/rs-208167-malad-valley-marathon)** — Fri, Sep 11, 2026 · 7:00 PM CDT · Malad City, ID · Marathon / 10K / 5K / 1 mile
- **[Priest Lake Marathon](https://runthis.run/event/rs-68663-priest-lake-marathon)** — Fri, Sep 18, 2026 · 7:00 PM CDT · Priest Lake, ID · 31.1 mi / Marathon / 10K
- **[Hayden Lake Marathon](https://runthis.run/event/rs-126549-hayden-lake-marathon)** — Fri, Oct 9, 2026 · 7:00 PM CDT · Hayden Lake, ID · Marathon / 6.5 mi / 5K / 805 m
- **[City of Trees Marathon](https://runthis.run/event/rs-131258-city-of-trees-marathon)** — Sat, Oct 10, 2026 · 7:00 PM CDT · Boise, ID · Marathon / 10K / 5K
- **[Idaho Running Day](https://runthis.run/event/rs-166758-idaho-running-day)** — Fri, Oct 16, 2026 · 7:00 PM CDT · Boise, ID · Marathon / 10K / 5K
- **[Boise River Marathon](https://runthis.run/event/rs-125745-boise-river-marathon)** — Sat, May 1, 2027 · 7:00 PM CDT · Boise, ID · Marathon / 10K / 5K
- **[YMCA Famous Idaho Potato Marathon & Fun Runs](https://runthis.run/event/rs-117176-ymca-famous-idaho-potato-marathon-fun-runs)** — Fri, May 14, 2027 · 7:00 PM CDT · Boise, ID · Marathon / 10K / 5K
- **[Sandpoint Marathon](https://runthis.run/event/rs-212211-sandpoint-marathon)** — Thu, May 27, 2027 · 7:00 PM CDT · Sandpoint, ID · 5K / 10K / Marathon
- **[CDA Marathon](https://runthis.run/event/rs-80502-cda-marathon)** — Fri, May 28, 2027 · 7:00 PM CDT · Coeur d'Alene, ID · Marathon / 10K / 5K / 1 mile

## Marathon races by city

- [Boise, ID (4)](https://runthis.run/races/idaho/boise/marathon.md)

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Source: [https://runthis.run/races/idaho/marathon](https://runthis.run/races/idaho/marathon) — data from Run This (runthis.run).