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RACE PROFILE
Thornton, Colorado·Marathon
Next Race · Aug 2026
RMRR provides full and half marathon training opportunities for runners of all abilities. RMRR’s Marathon Training Series provides 10mi/20km and 20mi/30km races that are low cost, friendly, supported, and officially timed. All you need to do is focus on your running! The MTS fits well into training schedules for Colorado Springs, Boulderthon, Long View, Berlin, Chicago, Monumental (Indy), New York, and other fall full and half marathons. Everyone is welcome to Marathon Training Series races: RMR
Historically warm conditions — expect a hydration-heavy race day.
Historical data (5-year avg)
Generate a personalized pacing and fueling strategy for RMRR Fall Marathon Training Series.
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