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2026 Center of the Nation Series - Day 2 (CO)

Name: 2026 Center of the Nation Series - Day 2 (CO)
Start: 2026-09-29
End: 2026-09-30
Location: Sterling

Sterling, Colorado, United States

calendar_today 29 Sep, 2026 – 30 Sep, 2026

directions_run Running

language Official Website

sell $65.00 – $175.00

About the Event

World's Best Marathon & Half Series!

No Time Limits

Great Food

Award-Winning Medals

Loony Community!

We RUN this country, TOGETHER!

Here's a link to the 2026 Center of the Nation Series page, which has additional information on each of the locations and the series as a whole.

If you're interested in any Mainly gear, check out our Merch!

Peace, love, and cheers to you all!

-Mainly Family

Races Offered

10K - Individual Age group/open

Sep 29, 2026

straighten

Distance — 10K

terrain

Type — Running

timer

25 days remaining

sell

$75.00

50K - Individual Age group/open

Sep 29, 2026

straighten

Distance — 50K

terrain

Type — Running

timer

25 days remaining

sell

$175.00

5K - Individual Age group/open

Sep 29, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

25 days remaining

sell

$65.00

Half Marathon - Individual Age group/open

Sep 29, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

25 days remaining

sell

$145.00

Marathon - Individual Age group/open

Sep 29, 2026

straighten

Distance — 42.2K

terrain

Type — Running

timer

25 days remaining

sell

$165.00

Weather History

These values represent the 3-year monthly averages for September in Sterling.

thermostat Temperature

12.8° / 27.9°

wb_sunny Feels like

10.6° / 24.8°

light_mode Avg sunshine hours

11h 5m

water_drop Avg rainfall

0.9 mm

ac_unit Avg snowfall

—

air Avg wind speed

11.8 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Hard and dry surface

sunny Max UV Index

Moderate (5.0)

humidity_mid Humidity

48.9%

wb_twilight Sunrise

06:34

nightlight Sunset

18:59

About Sterling

Learn more about the host city, Sterling.

Sterling is a home rule municipality and the county seat and most populous municipality of Logan County, Colorado, United States. The city population was 13,735 at the 2020 census. Sterling is the largest city in the Eastern Plains region of Colorado and the site of the domed Logan County Courthouse, built in 1909. The city is also home to Northeastern Junior College, enrolling over 1,500 students annually.