Rookie motorcycle racer Marc Marquez has won the US Grand Prix to extend his championship points lead and becoming the youngest rider in Moto GP history to win back-to-back series races.
The 20-year-old Spaniard, who won earlier this month in Germany, captured his third victory of the season as he beat out German pole sitter Stefan Bradl at the Laguna Seca raceway..
Nine-time world champion Valentino Rossi of Italy finished third behind Bradl.
With the victory, the Repsol Honda Team rider becomes the first rookie to win at Laguna Seca.
