- Weather
- 35°Ftypical startModelled estimate
- Field size
- ~600 runners
- Course
- Hilly
- Elevation
- 900 ft gain
New Hampshire mill town and Merrimack River
Early October · Southwest · Loop
Flagstaff, AZ · Saturday, October 3, 2026
Event listed as: Marathon
Registration opens on the organizer's site
Typical start
58°
Cooler than 10% of U.S. marathons
Modeled historical conditions
Elevation gain
2,200ft
Flatter than 2% of races
Estimated total climb
Field size
400
Larger than 4% of races
Estimated field
PR potential
4.6/10
Ahead of 3% of races
Almanac model
Percentiles compare this race against all 224 U.S. marathons in the Almanac.
2,200 ft gain · 0 ft net
Hilly course, loop.
Modeled from location, month and coastal proximity, not verified race history.
6 AM
50°
Start
58°
Midday
69°
Typical start sits at 58°F, good conditions.
Typical dew point 36°F, 6% chance of precipitation, wind around 7 mph. All modeled.
The bottom line
This one is about the day, not the clock.
Flagstaff Marathon Presented by Cambium Wealth and Legacy Strategies is a strong choice for runners who like a course with real character, and the climbing is the point here. The tradeoff is atmosphere: expect long quiet stretches and few spectators.
A loop course around Flagstaff, AZ, with real climbing that will cost you time if you race it hard early.
Races with a comparable profile.
New Hampshire mill town and Merrimack River
Deception Pass bridge and Puget Sound
Live music on course; energetic crowd