RMRR Marathon Training Series

RMRR provides low-cost, low-keyed, supported, and timed training races for runners of all abilities. The races are planned to help you prepare for Boston, Colorado, and Colfax Marathon, and other long spring races. We make it easy for you to work on your pace, your nutrition and drinking, and getting everything ready for your big race.

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Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.