Arizona · 45 Miler
Flagstaff Loop Trail
Flagstaff Loop Trail is a 45 Miler event held in Flagstaff, Arizona. It was last held on October 10, 2026 and is usually run in October; the next date hasn't been announced yet.
- Usually held
- October
- Location
- Flagstaff, AZ
Race details
- Last held
- October 10, 2026
- Usually held in
- October
- Location
- Flagstaff, Arizona
- Distances
- 45 Miler
- Registration
- ultrasignup.com
- Official website
- sites.google.com
Registration, course & weather
- Registration status
- Registration status as last checked September 28, 2026: open
- Start time
- 6:00 AM MST
- Course profile
- Loop course; Trail surface; Not USATF certified
- Typical race-day weather
- about 51°F at the start, 99% humidity, 6 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 28, 2026)
About the Flagstaff Loop Trail
Flagstaff Loop Trail 45 Miler is a free, unofficial "fatass" style trail race that circumnavigates Flagstaff, AZ via the roughly 45-mile, ~3,300 ft-gain Flagstaff Loop Trail system, starting and finishing at Schultz Creek Trailhead. The course is unmarked and runners self-navigate using an organizer-provided GPX file.
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Flagstaff Loop Trail: common questions
- When is the Flagstaff Loop Trail?
- The next date hasn't been announced in the listing yet. The race is usually held in October. Check the organiser's website for the official date.
- Where is the Flagstaff Loop Trail held?
- In Flagstaff, Arizona.
- What distances does the Flagstaff Loop Trail offer?
- 45 Miler.
- How do I register for the Flagstaff Loop Trail?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Flagstaff Loop Trail?
- Registration status as last checked September 28, 2026: open.
- What time does the Flagstaff Loop Trail start?
- 6:00 AM MST.
- What is the course like at the Flagstaff Loop Trail?
- Loop course; Trail surface; Not USATF certified.
- What is race-day weather usually like at the Flagstaff Loop Trail?
- about 51°F at the start, 99% humidity, 6 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 28, 2026).
Plan this race in RaceRove
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