Running races in Idaho in Sep 2027

13 races in date order

Salmon Marathon and Half Marathon
September 2027 · Salmon, ID · Marathon · Half Marathon

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Pocatello Marathon
September 2027 · Pocatello, ID · Marathon · Half Marathon
Net-downhill, point-to-point course popular for BQ times

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Payette Lake Run
September 2027 · McCall, ID · 30K · 14K · 5K
Loops the shoreline of Payette Lake in McCall

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Malad Valley Marathon
September 2027 · Malad City, ID · Marathon · Half Marathon · 10K · 5K

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Tunnel to Towers 5K Run & Walk - North Idaho
September 2027 · Coeur d'Alene, ID · 5K

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41st Annual Harvest Classic Fun Run
September 2027 · Nampa, ID · 8K · 2 Mile · 1 Mile

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Tunnel to Towers 5K Run & Walk - Payette, ID
September 2027 · Payette, ID · 5K

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Crater Crawl
September 2027 · Mountain Home, ID · 6.2 Mile · 2.9 Mile

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IMTUF 100 - Idaho Mountain Trail Ultra Festival
September 2027 · McCall, ID · 100 Mile
A rugged 100-miler through Idaho's West Central Mountains

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Idaho Mountain Trail Ultra Festival
September 2027 · McCall, ID · 100 Mile · 20 Mile
McCall's 100-mile mountain trail ultra, IMTUF

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Priest Lake Marathon
September 2027 · Coolin, ID · 50km · Marathon · Half Marathon · Lakeshore 10km

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St. Luke's FitOne Race
September 2027 · Boise, ID · Half Marathon · 10K · 5K
Along the Boise River Greenbelt from Ann Morrison Park

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Top of Tamarack
September 2027 · Cascade, ID · Marathon · Half Marathon · 10K · 5K
Climbs the mountain at Idaho's Tamarack Resort

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← Idaho Oct Nov Dec Jan 2027 Feb 2027 Mar 2027 Apr 2027 May 2027 Jun 2027 Jul 2027 Aug 2027 Oct 2027

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Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.