December Duathlons in the USA

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1. Ride. Run. Roll to Defeat ALS
2. Dirthead Off-Road Duathlon
3. Dirt in Your Shoe Du
4. Central Crew Biathlon
5. Chilly Cheeks Duathlon or 4 Mile Run Series
6. Powerman Florida
7. Christmas Sprint Triathlon & Duathlon
8. RunSup New Year Holiday Race