Image Joshua Cartwright (Blue Buffalo/Slater Skins/Yamaha) got himself a heck of a start in the first 250 heat race. Credit GuyB Related: Joshua Cartwright Supercross Supercross 2016 Photo Blast St. Louis Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 4 of 51Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 4/19/2016 4:03pm Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter