South Korea’s Kim Joo-Hyung claimed his first victory on the PGA Tour after posting a nine-under-par 61 on Sunday to win the Wyndham Championship.

Before the start of the tournament, which attracted a lot of attention from golf fans, it was noticed that a huge number of people actively participated in betting on the eventual Kim’s victory.

Kim, 20, becomes the second youngest winner on the PGA Tour since 1932.

Despite opening the tournament with a quadruple bogey, he finished five strokes ahead of compatriot Im Sung-Jae and American John Huh in North Carolina.

“I stayed very patient this week,” Kim told CBS.

“Instead of getting angry and depressed I stayed in the moment and I can’t believe I won with a quadruple bogey on the first hole. Hopefully that doesn’t happen again but it’s definitely a week that I will remember forever.“

Kim played Sunday’s opening nine holes in 27 strokes, tying the second-lowest nine-hole score in tour history.

His victory – the first on the PGA Tour by a player born in the 2000s – means he joins the PGA Tour as a full member, having been playing since mid-July on a “special temporary membership“. It also sees him added to the FedEx Cup standings in 34th place, bumping England’s Matt Wallace out of the playoffs by a single place.