Road running

Boise Greenbelt Relays & 50 Mile Ultra

📅 May 8, 2027 (estimated date)📍 Boise · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (May 9, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

50 mi45 mi

About

The Boise Greenbelt Relays & 50 Mile Ultra brings together teams of two to seven runners in an endurance relay along the Boise River Greenbelt in Boise on May 8, 2027, with the 45-mile (72.4 km) relay and the 50-mile (80.5 km) ultra both starting at 8:00 a.m. The race starts and finishes at Ann Morrison Park, with several exchange zones along the way that build team spirit and community.

Teams compete across different legs, while solo runners looking to go farther can take on the extra challenge of the 50-mile ultra.

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Races nearby

Other upcoming races around Boise.