Riverdale Ballfields in Thornton, Thornton CO
Sunday, September 22nd, 2024
RMRRs Marathon Training Series (MTS) races are low cost, friendly, supported, accurately measured, well marked, and timed. Each MTS has 10mi & 20mi, or 20k & 30k options. 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.
RMRR Members receive a $5 discount off individual races and $15 off the 3-race bundles. Discount taken when you check out. Your membership must be current.
Starting Line Map
Suggested Races