1999 Lucas Oil AMA Pro Motocross Championship
Motocross Race Results
- 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
- MotocrossSteel City Raceway September 5, 1999
- MotocrossBroome-Tioga Sports Center August 29, 1999
- MotocrossSpring Creek Motocross (Millville) August 15, 1999
- MotocrossWashougal Motocross August 1, 1999
- Motocross
- MotocrossUnadilla Motocross July 18, 1999
- MotocrossRedBud Track 'n Trail July 4, 1999
- Motocross
- MotocrossMoto-X 338 June 13, 1999
- MotocrossHigh Point Raceway May 30, 1999
- Motocross
- Motocross