The 16-year-old Japanese sensation produced a commanding display to claim a shock 11-9, 11-5, 11-4, 11-8 triumph, marking her debut Women’s World Cup appearance in style.

The success is also the first time a player from outside of China has clinched the title.

"I’m very happy with the victory, it all feel like a dream to me," Hirano said.

"With the $45,000 (£36,000/€40,000) prize money, I’m going to do some shopping for my family, coaches and friends."

Hirano dominated proceedings from the outset as she took charge of the contest early on, and never relinquished the pressure against a stunned Cheng, who had never progressed beyond the second round at the ITTF Women’s World Cup before her run to the final in the American city.

The Japanese player was the more positive of the two throughout, demonstrating her impressive array of backhand and forehand strokes.

She raced into a two-game lead and Cheng, a team bronze medallist at the World Championships earlier this year, never looked like launching a comeback as Hirano saw out a comfortable win.

The result capped off the perfect tournament for Hirano, who also impressed during her shock semi-final victory over number one seed Feng Tianwei of Singapore.

Feng, a three-time Olympic medallist and world team champion in 2010, ensured she ended the event on a positive note as she took third place by overcoming Tie Yana of Hong Kong.

The Singaporean competitor recovered from an unconvincing start, where she lost the second game, before claiming a 12-10, 7-11, 11-8, 11-8, 11-9 win.

“It’s been really tiring, especially playing such a big tournament after the Olympic Games,” Feng said.

“I have not been training for over a month since Rio.”