An, the 21-year-old top seed, rounded off a perfect tournament by beating two Olympic champions en route to the title. She had knocked out Tokyo gold medallist Chen Yu Fei in straight games in the semifinals on Saturday.

“I’m so happy to win the match today. I enjoyed playing,” An said after receiving her gold medal.

Spain’s Marin, the 2016 Olympic champion who is on the comeback trail after an anterior cruciate ligament injury, was looking to win her fourth world title but she was no match for An, who wrapped up the contest in 42 minutes.

An won the last 11 points in a row after the score was tied at 10-10 in the second game to hand Marin her first loss in the final of the competition.

An was South Korea’s first women’s finalist in 30 years. Bang Soo-hyun lost the 1993 final to Indonesia’s Susi Susanti.

The men’s final between Thailand’s Kunlavut Vitidsarn and Japan’s Kodai Naraoka will be played later today.