Beijing, Tokro: Novak Djokovic crushed his age-old rival Rafael Nadal 6-2, 6-2 on Sunday to seal his sixth China Open title and extend his amazing unbeaten run at the Beijing tournament.

The world number one underlined his superiority in men’s tennis as he thrashed a fading Nadal for his 29th win at an event he also won in 2009, 2010, 2012, 2013 and 2014.

Djokovic won three of the four Grand Slam finals this year and shows no signs of slowing down at the end of the season after losing only 18 games in his romp to the Chinese title.

Djokovic put Nadal under pressure from the start with a thunderous opening rally, which the Spaniard lost, and the world number eight then shanked a forehand high into the air to give up the first break point.

Nadal had break points in the sixth game but Djokovic held firm, and the Serb gained his second break in the seventh game when his Spanish opponent volleyed into the net with the court at his mercy.

Nadal called the trainer early in the second set for treatment to his right foot, and when Djokovic broke to go 2-1 ahead the 14-time Grand Slam winner’s challenge looked shot.

An instinctive lob over the stranded Nadal put Djokovic on his way to a second break and 4-1 lead, and after passing up two match points at 5-2, he finally sealed it with an ace for his rapturous Chinese fans.

In the longest rivalry in men’s tennis history, Djokovic moves to 22 won, 23 lost - but with seven victories out of their last eight meetings, including this year’s French Open quarter-finals.

Earlier in the day, top seed Stan Wawrinka won the Japan Open after thrashing Frenchman Benoit Paire 6-2, 6-4 to capture his fourth title of the year.

French Open champion Wawrinka took just 65 minutes to complete victory in Tokyo with Paire, who underwent a scan on his left ankle before the final and needed pain-killing injections to play, clearly in discomfort.

“It feels really great, it’s been a special week,” said Wawrinka, sporting a red “Stan the Man” T-shirt and snapping selfies with the silver trophy.

“I took my time to get to the top but once I get somewhere, I stay,” added the Swiss after winning his 11th career title. “Once I started to beat the top guys and win trophies, I got the confidence to know I can do it. But four in one year is amazing.”