The 2023 AMA Motocross Championship season was the 52nd AMA Motocross National Championship season, the premier motocross series in USA. Eli Tomac went into the season as the defending champion in the 450 class, after taking his fourth 450 national title in 2022. However, after an injury sustained during the 2023 AMA Supercross Championship Tomac did not defend his title. In the 250 class, Jett Lawrence went into the season as the defending champion, after winning his second 250 title the previous season. However, Lawrence moved up to the 450MX class, which meant he did not defend his title.
In his rookie season in the 450 class, Jett Lawrence recorded a perfect season by winning all 22 races. His older brother, Hunter Lawrence, took his first American motocross title in the 250 class.
The championship formed the second part of the inaugural SuperMotocross World Championship.
Calendar and Results 450cc RoundDateLocationRace 1 WinnerRace 2 WinnerRound Winner 1 May 27 Fox Raceway National Jett Lawrence Jett Lawrence Jett Lawrence 2 June 3 Hangtown Motocross Classic Jett Lawrence Jett Lawrence Jett Lawrence 3 June 10 Thunder Valley National Jett Lawrence Jett Lawrence Jett Lawrence 4 June 17 High Point National Jett Lawrence Jett Lawrence Jett Lawrence 5 July 1 Red Bud National Jett Lawrence Jett Lawrence Jett Lawrence 6 July 8 Southwick National Jett Lawrence Jett Lawrence Jett Lawrence 7 July 15 Spring Creek National Jett Lawrence Jett Lawrence Jett Lawrence 8 July 22 Washougal National Jett Lawrence Jett Lawrence Jett Lawrence 9 August 12 Unadilla National Jett Lawrence Jett Lawrence Jett Lawrence 10 August 19 Budds Creek National Jett Lawrence Jett Lawrence Jett Lawrence 11 August 26 Ironman National Jett Lawrence Jett Lawrence Jett Lawrence
250cc RoundDateLocationRace 1 WinnerRace 2 WinnerRound Winner 1 May 27 Fox Raceway National RJ Hampshire Hunter Lawrence Hunter Lawrence 2 June 3 Hangtown Motocross Classic Haiden Deegan Hunter Lawrence Hunter Lawrence 3 June 10 Thunder Valley National Justin Cooper Hunter Lawrence Hunter Lawrence 4 June 17 High Point National RJ Hampshire Hunter Lawrence RJ Hampshire 5 July 1 Red Bud National Hunter Lawrence Levi Kitchen Haiden Deegan 6 July 8 Southwick National Tom Vialle Jo Shimoda Tom Vialle 7 July 15 Spring Creek National Hunter Lawrence Justin Cooper Hunter Lawrence 8 July 22 Washougal National Haiden Deegan Haiden Deegan Haiden Deegan 9 August 12 Unadilla National Levi Kitchen Justin Cooper Hunter Lawrence 10 August 19 Budds Creek National Justin Cooper Hunter Lawrence Hunter Lawrence 11 August 26 Ironman National Jo Shimoda Jo Shimoda Jo Shimoda
Track locations
450cc
Entry list