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2026 Southwest Series - Day 4 (AZ)

Flagstaff, Arizona, United States

calendar_today 11 Nov, 2026 – 12 Nov, 2026

directions_run Running

language Official Website

sell $55.00 – $140.00

About the Event

World's Best Running Series!

No Time Limits

Great Food

Award-Winning Medals

Loony Running Family!

We RUN this country, TOGETHER!

Thanks for running with Mainly Marathons! Take a look at our website for additional details about this series and our other series of races.

Also, join our Facebook group to stay up-to-date with our loony adventures: Main Group and Southwest Series.

If you're interested in some Mainly Merch, check out our online store HERE. We'll offer some items (hats, stickers, magnets, mugs, etc.) in-person at the races, the Mainly Merch store best option for a variety of fun designs and quality merchandise to showcase your loonacy!

If you have any questions, email MB@MainlyMarathons.com

We RUN this country, TOGETHER!

Races Offered

10K - Individual Age group/open

Nov 11, 2026

straighten

Distance — 10K

terrain

Type — Running

timer

06:00

sell

$65.00

50K - Individual Age group/open

Nov 11, 2026

straighten

Distance — 50K

terrain

Type — Running

timer

06:00

sell

$140.00

5K - Individual Age group/open

Nov 11, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

06:00

sell

$55.00

Half Marathon - Individual Age group/open

Nov 11, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

06:00

sell

$115.00

Marathon - Individual Age group/open

Nov 11, 2026

straighten

Distance — 42.2K

terrain

Type — Running

timer

06:00

sell

$130.00

Weather History

These values represent the 3-year monthly averages for November in Flagstaff.

thermostat Temperature

0.5° / 10.9°

wb_sunny Feels like

-4.0° / 5.7°

light_mode Avg sunshine hours

8h 59m

water_drop Avg rainfall

1.0 mm

ac_unit Avg snowfall

0.2 cm

air Avg wind speed

11.1 km/h (Light breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Low (2.0)

humidity_mid Humidity

52.7%

wb_twilight Sunrise

07:01

nightlight Sunset

17:20

About Flagstaff

Learn more about the host city, Flagstaff.

Flagstaff is a city of over 75,000 people (2019) near the San Francisco Peaks mountain range of northern Arizona and the Grand Canyon. At an altitude of 6,990 ft (2,130 m), Flagstaff and much of the surrounding region are substantially cooler than the low desert that dominates the southern part of the state. Though still dry by east coast standards, enough rain and snow falls in the area to allow a forest of ponderosa pine trees to cover the landscape. Winters tend to be cold, and heavy snowfall is expected on an annual basis.