Source notes
Official source checked 2026-06-18. Confirm current leash, gear, wave, and registration requirements before signing up.
Dog-friendly trail race / West
Pony Express Trail Run 50 mi and 100 mi is listed as a dog-friendly trail race. Check the official source for current course and leash requirements.
Primary source: UltraSignup registration page
Official source checked 2026-06-18. Confirm current leash, gear, wave, and registration requirements before signing up.
Teams should confirm leash, start-position, trail-access, and aid-station rules before registration.
Confirm current leash, gear, wave, and registration requirements on the official source before signing up.
Check current leash, gear, wave, and registration requirements on the public source before signing up.