Valentino Rossi is a motorcycle rider currently participating in the MotoGp. He has won seven world championships and is the most successful rider in the history of motorcyle racing. Rossi is yet to become the rider with the most wins in the Premier Class of MotoGP but is currently well placed to do so.
NASCAR: Richard Petty 200 wins, 7 championships F1: Michael Schumacher: 7 championships MotoGP: Valentino Rossi: 9 world championships Short Track Oval: Dick Trickle w/ over 1000 wins
Vale currently has 8 world Championships, up to this year, 2009. He is currently ahead of Jorge Lorenzo by 30 points for the lead in this years championship. Vale has won the following championships. 1997 - 125 cc 1999 - 250 cc 2001 - 500 cc 2002 to 2005 MotoGP 2008 - MotoGP 2009 - MotoGP(?)
Nicky Hayden, sometimes nicknamed "The Kentucky Kid", is an American motorcycle racer. He is famous for winning the MotoGP World Championships in 2006.
Nicky Hayden - 2006 MotoGP World Champion
Yogiberra is the national league player who has most world championships.
Jorge Lorenzo who currently leads the 2012 MotoGP World Championship by 23 points
undertaker
The Naranjito Changos have the Guiness World Record in volleyball about the Most Championships in the world with 23 between 1958 and 2007. The Naranjito Changos have the Guiness World Record in volleyball about the Most Championships in the world with 23 between 1958 and 2007.
casy stoner
Valentino Rossi
After first competing internationally in 2002, he won the title of2007 MotoGP World Champion when he succeeded American Nicky Hayden. He currently competes in the MotoGP class for the Ducati Marlboro Team.