Marathons in Oregon
Oregon is home to 3 marathons in our database in United States, spread across cities including Eugene and Portland.
Eugene Marathon is the largest race in the lineup, typically drawing around 4,500 finishers, while the full spread offers everything from fast urban courses to scenic regional events.
Browse the races below for course maps, elevation profiles, typical weather, and practical race-day detail to help you choose your next start line.
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Seattle Marathon
The Seattle Marathon draws approximately 4,000 finishers on an urban road in Seattle, United States. The course starts at the University of Washington and finishes at Seattle Center near the Space Needle. The route crosses the I-90 bridge to Mercer Island and returns via the Lake Washington Boulevard. Mostly flat with a climb on the I-90 bridge.
Next race: Sunday, 29 November 2026
Victoria Marathon
The Victoria Marathon attracts approximately 3,500 finishers each October on Vancouver Island's scenic capital course. Runners pass the Inner Harbour, Beacon Hill Park, and the Dallas Road waterfront with views of the Olympic Mountains across the Strait of Juan de Fuca. October's mild island autumn and rolling coastal terrain make it one of Canada's most charming marathons.
Next race: Sunday, 11 October 2026
Vancouver Marathon
The Vancouver Marathon attracts approximately 4,500 finishers each May through one of the world's most scenic city courses. Runners pass Stanley Park, the Lions Gate Bridge approach, Kitsilano Beach, and the UBC campus with mountain-and-ocean views throughout. May's mild Pacific Northwest spring makes it Canada's premier destination marathon.
Next race: Sunday, 2 May 2027
Famous Idaho Potato Marathon
The Famous Idaho Potato Marathon draws approximately 1,600 finishers each May on an urban and greenbelt road in Boise, United States. The event's branding is playful, but the course is a serious spring marathon with a loyal regional following. The course passes the Boise River Greenbelt, city parklands, and tree-lined streets with foothill views. Gentle undulations are the only breaks on an otherwise flat profile.
Next race: Saturday, 15 May 2027
Missoula Marathon
The Missoula Marathon draws approximately 2,200 finishers each June on a point-to-point valley road in Missoula, United States. Its small-city atmosphere and fast terrain give it an outsized reputation among experienced marathoners. The route passes ranch land, the Clark Fork valley, and a fast final approach into Missoula's core. Gentle undulations are the only breaks on an otherwise flat profile.
Next race: Sunday, 27 June 2027
Napa Valley Marathon
The Napa Valley Marathon draws approximately 2,500 finishers each March on a point-to-point road in Calistoga, United States. It is one of the most famous wine-country marathons in the world and stays intentionally low-key despite strong demand. The course passes vineyards, winery estates, and quiet Silverado Trail miles backed by low hills. Gentle undulations are the only breaks on an otherwise flat profile.
Next race: Friday, 5 March 2027








