FIM Motocross World Championship
MXGP Riders: J
- Monster Energy AMA Supercross Championship
- AMA Pro Motocross Championship
- SuperMotocross World Championship
- FIM Motocross World Championship
- Progressive GNCC Racing
- Motocross of Nations
- FIM World Supercross Championship
- Australian Supercross Championship
- Women's Motocross Championship
- Monster Energy Cup
-
Henry Jacobi
Germany -
Kristof Jakob
-
Malou Jakobsen
Denmark -
Jan Jakobson
Estonia -
Germain Jamet
France -
Britt Jans-beken
The Netherlands -
Jaap Janssen
The Netherlands -
Pedro Jose Suarez Jaramillo
Ecuador -
Jordan Jarvis
Clayton, NC -
Arminas Jasikonis
Lithuania -
Karolina Jasinska
Poland -
Eddie Jay Wade
-
Domantas Jazdauskas
Lithuania -
Pablo Jeremias Pascual
Argentina -
Mathias Joergensen
Denmark -
Jessie Joineau
France -
Pauls Jonass
Latvia -
Alfie Jones
United Kingdom -
Rene De Jong
The Netherlands -
Emil Jonrup
Sweden -
Jesper Jönsson
Sweden -
Pontus Jönsson
Sweden -
Adrian Jorry
France -
Simon Jost