( CNN ) -- Jorge Lorenzo set up a thrilling last race finale with MotoGP title leader Marc Marquez by claiming the Japanese Grand Prix Sunday at Motegi . Defending champion Lorenzo led from start to finish on his Yamaha to relegate Marquez and his Honda teammate Dani Pedrosa to second and third places . It has cut Marquez 's lead to just 13 points ahead of the final round in Valencia in a fortnight , the first time in seven years the title will be at stake at this stage of the season . `` Until we finish racing we know the championship is not over . I 'm not the leading rider so it 's not all up to me , `` Lorenzo told the official MotoGP website . `` I am the rider with the most victories in 2013 and that 's very important . '' added the Spaniard , who was wrapping up his 51st career victory and seventh of the season . Marquez , who was disqualified in the previous round in Australia for delaying a mandatory tire change , will be looking to seal the title in his debut season , but had to settle for second in Honda 's home race . `` I felt I was too much on the limit and I said 'Ok , I 'll take 20 points for the championship , '' he said . The race was run off in dry conditions at Motegi after rain and fog had hit practice and qualifying , but Lorenzo was dominant from the start although teammate Valentino Rossi dropped back after early mistakes . Italian legend Rossi fought back to finish sixth with Alavaro Bautista and Stefan Bradl ahead of him in fourth and fifth . Marquez , just 20 , will go into the race in Spain needing to finish fourth or better to become the youngest winner of motorcycling 's premier class . He finished just over three seconds behind Lorenzo , shaking off a nasty crash in morning practice which he blamed on a cold tire and change of track temperature .
Jorge Lorenzo wins Japanese Grand Prix at Motegi . Cuts gap on championship leader Daniel Marquez to 13 points . Championship will be decided in final round in Valencia . Lorenzo bidding to become youngest world champion .