Race Information

  • Name
    Riley's Rumble Half Marathon
  • City
    Poolesville, MD
    Montgomery County
  • Events
    13.1M run
    8K run
  • Event Categories
  • Race Date
    May 1, 2021 Saturday Past Date
  • Primary Link
  • Related Listings
  • Details from event's RunSignUp.com listing:


    Welcome to the registration page for the MCRRC Riley’s Rumble Half Marathon!

    This page may also be used to sign up to volunteer - please see the "volunteer" tab to the left.

    Please read the important updates below:

    • The field will be limited to 250 participants for 2021.
    • Pre-registration is REQUIRED for both MCRRC Members and Non-Members. There will be NO RACE DAY REGISTRATION!
    • All participants are required to read the "COVID-19 Agreement for Participants" in the section below. By continuing with your registration, you agree to these protocols.
    • All bibs & chips will be picked up either on Friday evening from 5 to 7 pm at the MCRRC clubhouse or in the start area on race morning.
    • Please be sure to choose a corral start time when you register.

For the love of all that is good and moisture wicking...

Though we try to be accurate and on top of things... Race details can change when we aren't lookin. And once in a while we simply make a mistake.

ALWAYS visit the race's website for the most complete and accurate race information.

Listing Status

  • Added to our Directory
    Mar 28, 2003
  • Last Updated in our Directory
    Apr 2, 2021
  • Appears in Directories
  • This event has concluded
    We hope to update it for 2022

Updates, Corrections, or Problems

Run-Time: Saved Race

  • A Saved Race is one that has been added to your personal directory. You can organized races in lists, and add comments for your own personal reminders and information.
  • You must Create an Account and Log In to save races to your own personal directory.
  • Learn more about Saved Races

Claimed Race