( CNN ) -- Fernando Alonso has warned his rivals for the Formula One drivers ' championship he is hitting peak form after his stunning victory at the Singapore Grand Prix . The Ferrari driver led from start to finish in Singapore to record his third victory in the last five races and put him firmly in contention for the title . Alonso moved into second in the standings after Sunday 's race , just 11 points behind current leader Mark Webber , of Red Bull , and he says he is operating at his optimum level . `` We are in a sport where you can not be completely fit , focused and motivated 100 per cent at every race , every month . You are up and down , '' Alonso was quoted as saying by the UK Press Association . F1 standings after Singapore Grand Prix . `` But right now , at this point of the championship , I 'm at a peak -- 100 per cent motivated , focused etc . '' The Spaniard has now leapfrogged McLaren pair Lewis Hamilton and Jenson Button , as well as Webber 's Red Bull teammate Sebastian Vettel with just four races remaining . And heading into the next race in Japan , Alonso insists he is in good shape as the nine-month long season threatens to offer up a thrilling climax . He added : `` Sometimes in past championships in September , I was getting tired , what with all these long flights , getting very stressed . `` But this year it is different . It feels like the championship is starting now , so I feel very happy we will be going to Japan next race . '' Meanwhile , Red Bull team principal Christian Horner has predicted that the championship will be decided during the final race in Abu Dhabi . `` I think it is almost inevitable with the way the season has swung backwards and forwards that this will go right down to the wire in Abu Dhabi , '' Horner was quoted as saying by the UK Press Association . `` I sincerely hope it does n't and I sincerely hope it is one of our guys who ties it up before that . But the likelihood is that with the quality of drivers and teams involved that it will go down to the wire . ''
Ferrari 's Fernando Alonso says he is hitting peak form just at the right time . Alonso moved into second in the drivers ' championship with victory at Singapore Grand Prix . Red Bull team principal Christian Horner says the championship battle will go down to the drivers .