4th Annual Dirty Spokes Alabama Duathlon

Nov. 10: 4th Annual Dirty Spokes Alabama Duathlon. 9 a.m. Oak Mountain State Park. Part of Dirty Spokes Georgia Off-Road Duathlon Series. Consists of a 3.1-mile run and 11.0-mile bike. Prizes for overall top-three male and female finishers. Cost for individual entry after Nov. 1 is $40-$50. Cost for relay team entry after Nov. 1 is $65-$75. For more or to register, visit active.com.