Casey Stoner may have won the most prestigious prize in motorcycle racing this year, the MotoGP World Championship, but the Ducati star has been ranked just 14th on BRW's Australian sporting rich list.

The list estimates that the 22-year-old made $4.2 million during his title winning season, compared with $20 million for golfer Greg Norman, who topped the list for the eleventh year in succession.

However, Stoner began 2007 - only his second year in the premier class and first with Ducati - having never won a MotoGP race, making his signing something of gamble by the Italian factory.

That was reflected in Stoner's salary and sponsorship earnings, both of which should rocket in 2008.

F1 driver Mark Webber was the top Australian motorsport earner with an estimated $8.4 million income, good enough for third on the list behind footballer Harry Kewell.

The second richest motorsport representative was AMA Supercross/Motocross star Chad Reed, who banked an eye-opening $7.8 million for sixth position, while former AMA Superbike champion Mat Mladin was ninth on ?6.6 million.