RMRR Marathon Training Series

RMRR Fall Marathon Training Series #3 is held at the Riverdale Ballfields in Thornton, Colorado (9830 Riverdale Road). The event offers 10-mile and 20-mile options, with flexible distances possible in between. Described as low-cost, friendly, supported, accurately measured and well-marked, the series provides a timed race environment designed for fall marathon training.

The course is hosted at Riverdale Ballfields, with a registration site featuring a covered area and restrooms; dogs and running strollers are not permitted for safety. RMRR members enjoy discounts (a $5 race discount and $15 off 3-race bundles). It’s designed to fit into training schedules for fall marathons. Visit the organization's website for the most recent information.