Image Colt Nichols and Zach Osborne battled back and forth during the main, with Nichols getting the upper hand. Osborne finished fifth. Credit GuyB Related: Colt Nichols Zach Osborne Supercross Supercross 2016 Photo Blast San Diego 2 Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 28 of 41Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 2/14/2016 9:03pm Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter