Arizona · Marathon · Half Marathon · 10K
Flagstaff Marathon
Flagstaff Marathon is a marathon, half marathon, 10K and Kids Kilo event held in Flagstaff, Arizona. It was last held on October 3, 2026 and is usually run in September; the next date hasn't been announced yet. About 600 runners take part across all distances.
- Usually held
- September
- Location
- Flagstaff, AZ
- Field size
- ~600 runners
Race details
- Last held
- October 3, 2026
- Usually held in
- September
- Location
- Flagstaff, Arizona
- Distances
- Marathon, Half Marathon, 10K, Kids Kilo
- Field size
- About 600 runners
- Course
- Starts above 8,000 ft; ~2,400 ft of climbing for the full, ~1,200 ft for the half; max elevation ~8,600 ft
- Registration
- runsignup.com
- Official website
- flagstaffmarathon.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: completed
- Entry fee
- Listed fee for the longest distance, $120 (from flagstaffmarathon.com, checked October 5, 2026)
- Start time
- 8:00 AM MST
- Course profile — Marathon
- Loop course; Trail surface; 2400 ft gain (official course data); Not USATF certified; Not a Boston qualifier
- Course profile — Half Marathon
- Loop course; Trail surface; 1200 ft gain (official course data); Not USATF certified
About the Flagstaff Marathon
A fully off-road marathon and half through the Coconino National Forest at 8,000+ ft, benefiting Coconino Community College's cross country program.
Rankings and notes
- Rankings and awards
- Billed as 'The Coolest Marathon in Arizona' and one of the most challenging high-altitude trail marathons in the country
More marathons in Arizona
Coming up next, by confirmed date.
-
Buckeye Marathon, Half Marathon, 10K, 5K and 1 Mile Fun RunBuckeye, AZ1 Mile Fun Run10K5KHalf Marathon +2 more ~237 runners
-
Lost Dutchman MarathonApache Junction, AZMarathonHalf Marathon10K8K Trail Run +1 more ~2,200 runners
-
Lost Dutchman Marathon, Half Marathon, 10K and 8KApache Junction, AZ10K Run2 Mile Fun Run (Saturday8K Trail RunHalf Marathon +1 more ~400 runners
More races in Flagstaff
-
Big Brothers Big Sisters Dave McKay Memorial Half Marathon & 5KFlagstaff, AZHalf Marathon5K Run/Walk ~800 runners
More upcoming races in Arizona
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Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Flagstaff Marathon: common questions
- When is the Flagstaff Marathon?
- The next date hasn't been announced in the listing yet. The race is usually held in September. Check the organiser's website for the official date.
- Where is the Flagstaff Marathon held?
- In Flagstaff, Arizona.
- What distances does the Flagstaff Marathon offer?
- Marathon, Half Marathon, 10K and Kids Kilo.
- How many people run the Flagstaff Marathon?
- About 600 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Flagstaff Marathon?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Flagstaff Marathon?
- Registration status as last checked October 5, 2026: completed. Listed fee for the longest distance, $120 (from flagstaffmarathon.com, checked October 5, 2026).
- What time does the Flagstaff Marathon start?
- 8:00 AM MST.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.