Grand Teton & Yellowstone Half Marathon
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Grand Teton & Yellowstone Half Marathon & 5K
This event runs across two weekends in Wyoming from June 4 to June 12, 2027, and is organized by Vacation Races. It offers separate race days in the Grand Teton and Yellowstone areas and several multi-race challenge options.
Distances available:
- Grand Teton Half Marathon, 13.1 mi
- Yellowstone Half Marathon, 13.1 mi
- Grand Teton 5K, 5 km
- Yellowstone 5K, 5 km
The Grand Teton half marathon starts in Wilson at the Stilson Lot and follows roads and a flat paved jogging trail, crossing Moose Wilson Road and the Snake River on a pedestrian bridge before turning onto Spring Gulch Road toward a finish with views of the Teton Range. The Grand Teton 5K is a paved loop from the Stilson Lot with minimal elevation change and wide views of the Tetons.
The Yellowstone half marathon begins with a town loop and trail warm up, crosses a bridge over the South Fork Madison River, and includes a steep section of about 200 feet through dense woods where bears may be present; participants may carry bear spray. The course has technical rocky and weedy sections, a fast downhill segment, a short 40 to 50 foot hill near mile 11, and mostly flat or gently downhill terrain to the finish. The Yellowstone 5K starts near Iris Street and Yellowstone Avenue, runs through town and forest service roads, and finishes near the expo area.
Race services include finisher medals and race shirts, chip timing and official results, aid stations with water and electrolytes, basic first aid and bathrooms, expo and packet pickup the day before plus race morning options, race day gear check, shuttle service from parking areas to the start line, and post race awards ceremonies. Parking is provided for expo and 5K activities at the Stilson Lot and at the open lot on Iris Street; there is no parking at the start. Lodging options and participant rates are listed through HotelPlanner for locations near key event areas. Visit the organization's website for the most recent information.
