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Thornton, CO · September 13, 2026 · RunningExternal event
RMRR Fall Marathon Training Series #2 2026
Thornton, CO · September 13, 2026 · Running
DateSeptember 13, 2026
LocationThornton, CO
DisciplineRunning
RegistrationExternalorganizer site
Price$20
Divisions
MarathonDistance
About the race
The race.
Rocky Mountain Road Runners' Fall Marathon Training Series #2 takes place September 13, 2026, in Thornton, Colorado, at Riverdale Ballfields (9830 Riverdale Road). The race offers 20-kilometer and 30-kilometer distances, both officially timed with marked courses, mile markers, and aid stations. The race begins at 7 a.m. Race winners in each distance receive ribbons. Dogs and running strollers are not permitted on the courses. RMRR members receive a 25% discount on entry fees.
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