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Thornton
Running Races in Thornton, Colorado
Upcoming Races
December 12, 2026
Winterfest 5k
5K
June 19, 2027
Unicorn 5k (Denver - North)
5K
1 Mile
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Featured Races
October 11, 2026
Trails to Taps Relay
Bellingham
October 18, 2026
2026 Regatta Run & Walk 5K
Portland
October 24, 2026
The Great Pumpkin Run
Portland
