FIM Motocross World Championship
MXGP Riders: I
- 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
-
Manuel Iacopi
Italy -
Franco Iavecchia
Uruguay -
Ilya Ilyukhin
Russia -
Lucas Imbert
France -
Bastien Inghilleri
France -
Adele Innocenzi
Italy -
Kim Irmgartz
Germany -
Muhammad Hakimi Iroly
Malaysia -
Jernej Irt
Slovenia -
Peter Irt
Slovenia -
Graeme Irwin
Ireland -
Diva Ismayana
Indonesia -
Maykal Grisha Ivanov
Bulgaria -
Michael Ivanov
Bulgaria