James Stewart (Yamaha) won round 4 of the Monster Energy AMA Supercross series in Oakland last evening. Stewart became the fourth winner on the fourth different motorcycle this year by beating early leader Chad Reed (Honda) to the flag. Reed finished ahead of third place Ryan Villopoto (Kawasaki). Reed is tied with Ryan Dungey (KTM) for the series points lead after Dungey finished in fourth position.
For additional details, results and points, visit the official Monster Energy site here.