MADRID - Wimbledon champion Petra Kvitova romped to the Madrid Open title on Saturday with a crushing 6-1, 6-2 victory over Svetlana Kuznetsova. The Czech ended Serena Williams's 27-match winning streak in the semi-finals and was far too good for Kuznetsova, who looked heavy-legged after spending more than 11 hours on court to reach the final.

"I am very happy, I am really glad that I could win here for the second time in Madrid," said Kvitova, after a timely win just two weeks out from the French Open. "It is unbelievable for me to finish the week like this. I know that Svetlana wasn't feeling very well, so I wish her good luck."

The world number four only recently returned to action after a six-week break after admitting to being physically and mentally exhausted by the travails of the tour. And that break looks to have done her the world of good as she was the far fresher player in sealing her 16th career title and second in Madrid. Kuznetsova fended off three break points to hold serve at 1-1, but was blown away thereafter as Kvitova reeled off five straight games to take the first set.

The Russian took a medical timeout at the change of ends, but that didn't disrupt Kvitova's rhythm as she moved 4-0 up in the second. Kuznetsova, who had knocked Maria Sharapova out in Friday's semi-finals, showed great determination to finally get on the board in the second. But that only delayed the inevitable as Kvitova rounded off victory in little over an hour on court.

Kvitova insisted that the five-minute injury delay had not distracted her as she set her sights on victory. "It's not always nice to just sit on the bench and wait," said the 25-year-old Czech.

Nadal into seventh Madrid final:

Rafael Nadal stayed on course for a third consecutive Madrid Open title as he proved too strong for the Czech Republic's Tomas Berdych 7-6 (7/3), 6-1 on Saturday. The Spaniard will face either a rematch of last year's final against Kei Nishikori or world number three Andy Murray in Sunday's final. "Tomas is a player that is playing spectacularly this year, he is competing in all the tournaments and I had to be at a high level to beat him," said Nadal. "It is without doubt one of the best matches I have played all year. I am very happy. This week was vital for me and to be in the final is great news. Last year Madrid helped me a lot and this year I think it is again."

Nadal has yet to win a tournament this on the European clay after falling to world number one Novak Djokovic in the Monte Carlo Masters semi-finals and a stunning defeat to Fabio Fognini early at the Barcelona Open last month.

However, the nine-time French Open champion showed signs of his best form back on his favoured surface in sealing victory in temperatures which nudged 30 degrees in just under two hours on court.