Casey Stoner 
Bike Number: 27
DOB: 16 October 1985
Nationality: Australian
GP Debut: Britain 2001 (125cc), Japan 2002 (250cc), Spain 2006 (MotoGP)
Best MotoGP: 1st (Ducati in 2007)
Previous Season: 2nd in MotoGP (Ducati)

Nicky Hayden 
Bike Number: 69
DOB: 30 July 1981
Nationality: American
GP Debut: Japan 2003 (MotoGP)
Best MotoGP: 1st (Honda in 2006)
Previous Season: 6th in MotoGP (Honda)

Valentino Rossi 
Bike Number: 46
DOB: 16 February 1979
Nationality: Italian
GP Debut: Malaysia 1996 (125cc), Japan 1998(250cc), South Africa 2000 (MotoGP, 500 cc class)
Best MotoGP: 1st (Honda in 2001 500cc class, 2002 and 2003, Yamaha in 2004, 2005 and 2008)
Previous Season: 1st in MotoGP (Yamaha)

Jorge Lorenzo 
Bike Number: 99
DOB: 4 May 1987
Nationality: Spanish
GP Debut: Spain 2002 (125cc), Spain 2005 (250cc), Qatar 2008 (MotoGP)
Best MotoGP: 4th (Yamaha in 2008)
Previous Season: 4th (Yamaha in 2008)

Sete Gibernau 
Bike Number: 59
DOB: 15 December 1972
Nationality: Spanish
GP Debut: Spain 1992 (250cc), Malaysia 1997 (MotoGP, 500cc class)
Best MotoGP: 2nd (Honda in 2003 and 2004)
Previous Season: did not compete

Randy De Puniet 
Bike Number: 14
DOB: 14 February 1981
Nationality: French
GP Debut: France 1998 (125cc), Japan 2001 (250cc), Spain 2006 (MotoGP)
Best MotoGP: 11th (Kawasaki in 2007)
Previous Season: 15th in MotoGP (Honda)

Mika Kallio 
Bike Number: 36
DOB: 8 November 1982
Nationality: Finnish
GP Debut: Germany 2001 (125cc), Qatar 2007 (250cc), Qatar 2009 (MotoGP)
Best MotoGP: Newcomer this season
Previous Season: 3rd in 250cc world championship (KTM)

Niccolo Canepa 
Bike Number: 88
DOB: 14 May 1988
Nationality: Italian
GP Debut: Qatar 2009 (MotoGP)
Best MotoGP: Newcomer this season
Previous Season: test rider for Ducati

Dani Pedrosa 
Bike Number: 3
DOB: 29 September 1985
Nationality: Spanish
GP Debut: Japan 2001 (125cc), South Africa 2004 (250cc), Spain 2006 (MotoGP)
Best MotoGP: 2nd (Honda in 2007)
Previous Season: 3rd in MotoGP (Honda)

Andrea Dovizioso 
Bike Number: 4
DOB: 23 March 1986
Nationality: Italian
GP Debut: Italy 2001 (125cc), Spain 2005 (250cc), Qatar 2008 (MotoGP)
Best MotoGP: 5th (Honda in 2008)
Previous Season: 5th (Honda in 2008)

Chris Vermeulen 
Bike Number: 7
DOB: 19 June 1982
Nationality: Australian
GP Debut: Australia 2005 (MotoGP)
Best MotoGP: 6th (Suzuki in 2005)
Previous Season: 8th in MotoGP (Suzuki)

Loris Capirossi 
Bike Number: 65
DOB: 4 April 1973
Nationality: Italian
GP Debut: Japan 1990 (125cc), Japan 1992 (250cc), Australia 1995 (MotoGP)
Best MotoGP: 3rd (Honda in 2001, 500cc class and Ducati in 2006)
Previous Season: 10th in MotoGP (Suzuki)

Alex De Angelis 
Bike Number: 15
DOB: 15 February 1984
Nationality: Sammarinese
GP Debut: Imola 1999 (125cc), South Africa 2004 (250cc), Qatar 2008 (MotoGP)
Best MotoGP: 14th (Honda in 2008)
Previous Season: 14th (Honda in 2008)

Toni Elias 
Bike Number: 24
DOB: 26 March 1983
Nationality: Spanish
GP Debut: Spain 1999 (125cc), Japan 2002 (250cc), Spain 2005 (MotoGP)
Best MotoGP: 9th (Honda in 2006)
Previous Season: 12th in MotoGP (Ducati)

Yuki Takahashi 
Bike Number: 72
DOB: 12 July 1984
Nationality: Japanese
GP Debut: Pacific 2001 (125cc), Pacific 2002 (250cc), Qatar 2009 (MotoGP)
Best MotoGP: Newcomer this season
Previous Season: 5th in 250cc world championship (Honda)

Colin Edwards 
Bike Number: 5
DOB: 27 February 1974
Nationality: American
GP Debut: Japan 2003 (MotoGP)
Best MotoGP: 4th (Yamaha in 2005)
Previous Season: 7th in MotoGP (Yamaha)

James Toseland 
Bike Number: 52
DOB: 5 october 1980
Nationality: British
GP Debut: Qatar 2008 (MotoGP)
Best MotoGP: 11th in 2008 (Yamaha)
Previous Season: 11th in 2008 (Yamaha)

Marco Melandri 
Bike Number: 33
DOB: 7 August 1982
Nationality: Italian
GP Debut: Czech Republic 1997 (125cc), South Africa 2000 (250cc), Japan 2003 (MotoGP)
Best MotoGP: 2nd (2005 with Honda)
Previous Season: 17th in MotoGP (Ducati)