Colorado · 20K · 30K

RMRR Fall Marathon Training Series #2

RMRR Fall Marathon Training Series #2 is a 20K and 30K event held in Thornton, Colorado. It was last held on September 13, 2026 and is usually run in September; the next date hasn't been announced yet.

Usually held
September
Location
Thornton, CO

Race details

Last held
September 13, 2026
Usually held in
September
Distances
20K, 30K
Registration
runsignup.com
Official website
rmrr.org

About the RMRR Fall Marathon Training Series #2

RMRR provides full and half marathon training opportunities for runners of all abilities. RMRR’s Marathon Training Series provides 10mi/20km and 20mi/30km races that are low cost, friendly, supported, and officially timed. All you need to do is focus on your running! The MTS fits well into training schedules for Colorado Springs, Boulderthon, Long View, Chicago, Monumental (Indy), New York, and other fall full and half marathons. Everyone is welcome to Marathon Training Series races: RMRR membe…

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RMRR Fall Marathon Training Series #2: common questions

When is the RMRR Fall Marathon Training Series #2?
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 RMRR Fall Marathon Training Series #2 held?
In Thornton, Colorado.
What distances does the RMRR Fall Marathon Training Series #2 offer?
20K and 30K.
How do I register for the RMRR Fall Marathon Training Series #2?
Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
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