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Riley’s Rumble Half Marathon 2021

May 1

Registration will be limited to 250 participants for this event.  MCRRC members may participate in this event at a cost of $20.  *** PLEASE NOTE ALL MEMBERS MUST PRE-REGISTER FOR THIS EVENT TO SECURE A SPOT *** We understand that this is different, but it is necessary in order for us to be able to control participation and ensure we are within our permitted restrictions.

Registration for non-MCRRC Members will be available at a cost of $30.

Once the race is “sold out,” it is sold out – sorry, but we are unable to make exceptions due to county regulations.

Course Map:

Please see the 2021 course map here.


Chesapeake and Ohio Canal Towpath, Riley’s Lock
13015 Rileys Lock Road
Poolesville, MD 20837 United States
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