2013 Racin' the Station Duathlon: Sprint Duathlon at Redstone Arsenal. Kids event as well (after main event). Same registration link, just sign up for different race. Youth long and short will be at same time (chip timing). No mass start for kids race. They'll start a few at a time.
Sprint Duathlon: The run course is very flat (same for both legs). The bike course has a few small hills, but is overall very flat as well.
Marshall Space Flight Center - Redstone Arsenal Building 4316 (MSFC Activity Center) off Digney Rd
From I-565 in Huntsville, must come in Gate 9 (Rideout Road).
Once on Redstone Arsenal, keep traveling south a few miles then left onto Digney Rd (at Rocket Park).
Building 4316 is on your left before you get to the next intersection (which is Morris Rd).