2026 Denver Supercross – 450SX Heat 1 | Round 16

The 450SX class arrives at Empower Field at Mile High in Denver, Colorado for Round 16 of the 2026 Monster Energy AMA Supercross Championship — and Heat 1 marks the beginning of a penultimate round that carries enormous championship weight for the premier class title fight.

Denver is unlike any other round on the Supercross calendar. The altitude at Mile High presents a physical challenge that no amount of preparation can fully eliminate — the thinner air affects every rider and every machine on the gate, and the ability to manage those conditions while maintaining championship-level race pace is what separates the contenders from the rest of the 450SX field at this venue.

With only two rounds remaining in the 2026 Supercross season, Heat 1 in Denver is far more than a routine qualifying race. Gate picks matter, momentum matters, and the mental and physical state that a rider carries into the main event from their heat race performance can have a real impact on the result when the championship points are on the line. Every rider on the gate in Heat 1 knows exactly how much is still at stake.

The 2026 450SX title fight has been one of the most competitive and unpredictable in recent memory — and Denver, with its unique demands and its position as the penultimate round of the season, is exactly the kind of venue where the championship can be won or lost. Heat 1 is where it all begins.

Hit play on the video below and watch 450SX Heat 1 from the 2026 Denver Supercross.

450 Heat Race 1