THE 12th ANNUAL THE SILVER COMET HALF MARATHON & FIRST FULL MARATHON! REGISTER NOW! Race sells out! Remember why you run in the first place! This fun, beautiful, flat course running out & back on the Silver Comet Trail. Silver Comet Races are fully self supporting & give financial support to youth educational, environmental, cross country, track & field & explorer programs via partnerships w/ Cobb County Parks & Rec, Fire, Police & Schools. Perfect for first time walkers & runners. Start and finish line timing! Water stops are every 1.5 miles & PowerAde is at the 2 water stops near the turn-around. All finishers are rewarded w/ a custom medal & long sleeve technical t-shirt. Walkers are encouraged to participate in the half marathon; however, they need to complete the 13.1 miles at a 16-minute mile pace or under to receive an official time. Official timing stops at 3:30:00. If you can not complete the 13.1 miles in 3:30 hours, for your safety, you should not register and may be shuttled off the course. Full Marathon timing stops at 5:30.