MONTEREY - Rookie Marc Marquez won the US Grand Prix on Sunday, extending 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. “I’m very happy because it’s great to go into the summer break with this result,” Marquez said. “It’s a new circuit and I’ve got 25 points.” Bradl claimed his first podium spot and nine-time world champion Valentino Rossi of Italy finished third. With the victory, the Repsol Honda Team rider becomes the first rookie to win at Laguna Seca. Marquez surpassed Freddie Spencer as the youngest to record consecutive victories.–AFP