SuperMotocross World Championship

Season Description
The 2025 SuperMotocross World Championship was the third edition of the premier combined discipline off-road motorcycle racing competition, held in the United States. Combining the AMA Supercross Championship and the AMA Motocross Championship, along with three final SuperMotocross rounds, the series ran from January to September.

Jett Lawrence went into the season as the reigning overall champion in the 450cc class, while Haiden Deegan began the campaign as the defending champion in the 250cc class.

Lawrence was able to successfully defend his title in the 450cc class, making him a three-time champion. In the 250cc class, Jo Shimoda took his first SuperMotocross World Championship, after a battle against reigning champion Deegan across the three play off rounds.

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