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SEP 2026
20SUN
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RMRR September Trophy Series
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RMRR September Trophy Series
Sunday, September 13, 2026 · Thornton, United States
Distances
5K
10K
Start location
About this race
The RMRR September Trophy Series at Riverdale Ballfields offers a low-key, low-cost racing environment. All are welcome to this event, which features a unique handicap start and scoring system. 10k runners will be assigned a start time with others of similar speed, beginning slow-to-fast and spread over approximately 30 minutes, ensuring everyone has a chance to win. The course is an out-and-back on a mix of paved and smooth gravel.