2026 St. Louis Supercross – 250SX East/West Showdown Main Event | Round 12

The 250SX East/West Showdown Main Event at the 2026 St. Louis Supercross is the highlight of the 250 class at Round 12 — and at The Dome at America’s Center, the second Showdown of the season delivers a combined main event field that represents the very best the 250SX class has to offer in 2026.

The East/West Showdown main event is one of the most compelling races on the entire Supercross calendar. With riders from both divisions competing head-to-head for the same result, the questions that have been building all season long finally get answered under the lights. Who has the pace, who has the consistency, and who has what it takes to lead when it matters most — St. Louis is the place to find out.

By the time the main event gate drops, every rider on the gate has earned their spot through a night of qualifying, heat races, and for some, a last chance qualifier. The preparation is done, the gate picks are set, and the only thing left is to go racing. On a track as tight and technical as The Dome at America’s Center, a clean start and a smart first lap can set the tone for the entire main event.

With both the 250SX East and West championships reaching their most critical stages, the St. Louis Showdown main event carries real title implications for riders on both sides of the division. Every point earned tonight feeds directly into a championship fight that is far from over.

Hit play on the video below and watch the full 250SX East/West Showdown Main Event from the 2026 St. Louis Supercross.

250 Main Event