Grand Teton & Yellowstone Half Marathon
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Grand Teton & Yellowstone Half Marathon & 5K - June 4 to June 12, 2027
This multi-day race series in Wyoming is organised by Vacation Races and takes place across two weekends in early June 2027. The programme includes 5 km and half-marathon distances at both Grand Teton and Yellowstone, plus combined challenge options that award additional medals for completing multiple events.
Distances:
- 13.1 mi Grand Teton Half Marathon
- 13.1 mi Yellowstone Half Marathon
- 5 km Grand Teton 5K
- 5 km Yellowstone 5K
Course details for Grand Teton include a start at the Stilson Lot in Wilson, WY, an outward section along Hwy 22, a flat paved jogging trail, a pedestrian bridge over the Snake River, and a final approach via Spring Gulch Road. The Grand Teton 5K is a paved, fast loop with minimal elevation change.
The Yellowstone half-marathon begins with town and trail loops, crosses a bridge over the South Fork Madison River, and includes a sustained climb of about 200 feet through dense woods. The route contains technical rocky and weedy trail sections, a fast downhill segment, and final miles that are mostly flat or gently downhill. Bears are present in the area and participants may carry bear spray for protection. The Yellowstone 5K runs through town, forest service roads, and finishes near the expo area.
Included services across events comprise finisher medals and shirts, chip timing and official results, aid stations with water and electrolyte mix, basic first aid and bathrooms, expo and packet pickup, shuttle service from parking to the start, gear check, and post-race awards. Visit the organization's website for the most recent information.