National and world championships, presented by Alpinestars Australia.
Australian Four-Day Enduro
Date: 4-7 April
Location: Cessnock, New South Wales
More information: www.a4de.com.au
MXGP World Championship
Round: Three
Date: 7-8 April
Location: Trentino, Italy
Australian riders: Hunter Lawrence (MX2), Jed Beaton (MX2)
More information: www.mxgp.com
AMA Supercross Championship
Round: 13
Date: 7 April
Location: Seattle
Australian riders: Chad Reed (450SX), Hayden Mellross (250SX)
More information: www.supercrosslive.com