The 28-year-old fourth seed dismissed the Chinese player 22-20, 21-13 to win his first title at Superseries level since the 2014 Indonesian Open.

Jørgensen, a former European champion, succeeded where his third-seeded compatriot Viktor Axelsen - beaten by Chen in the semi-finals yesterday - failed.

Rio 2016 gold medallist Chen was the big favourite to win his home tournament for the fourth time but the second seed was second best.

"I’m a bit in shock," said Jørgensen, who was runner-up in 2009 and is now the first European to win a singles title at the event, which was first played in 1986.

"It’s one of the most difficult events to win, it’s a legendary tournament. 

"My preparation was very limited, I’m just super proud."

China had representatives in four of the five finals today but lost them all, failing to win a title at their home tournament for the first-time ever.

In the women's singles, India's Rio 2016 silver medallist P.V Sindhu beat home hope Sun Yu 21-11, 17-21, 21-11 to win her first title at Superseries level.

"It has been a dream for a long time to win a Superseries," Sindhu, the eighth seed, said. 

"After the Olympics, everyone was asking me: 'what’s next?' 

"It was important for me to get a Superseries title. 

"Life changed a lot after the Olympics. 

"People thought I would take a long time to get back, but I worked hard."

Indonesia won two of the doubles titles, with Marcus Fernaldi Gideon and Kevin Sanjaya Sukamuljo beating Denmark's Mathias Boe
and Carsten Mogensen 21-18, 22-20 to claim the men's doubles crown.

Tontowi Ahmad and Liliyana Natsir then saw off China's Zhang Nan and Li Yinhui 21-13, 22-24, 21-16 in the mixed final.

In the women's doubles, Li was beaten again alongside Huang Dongping, with South Koreans Chang Ye-na and Lee So-hee prevailing 13-21, 21-14, 21-17.