Yamaha , clinching the Constructors crown for the 37th time , has won the riders title in the premier class 16 times , most recently with Lorenzo in 2010 and 2012 .
Rossi won the championship four times in 2004 .
Yamaha , clinching the Constructors crown for the 37th time , has won the riders title in the premier class 16 times , most recently with Lorenzo in 2010 and 2012 , while Rossi won the championship four times in 2004 .