Video: That night in Vegas 2017!

It was possibly the best night of racing in supercross history as two titles were decided in one sensational night of pulsating excitement that saw former British champ Zach Osborne win the supercross championship with a brutal pass on Joey Savatgy with two turns to go.

Then, Ryan Dungey, in the last race of his storied and incredibly consistent career, kept his cool against the tactics of Eli Tomac to leave the sport as a four-time supercross champion.

Re-live all the drama and excitement by watching both main events again below: