The 23-year-old arrived in Singapore on the back of a rich vein of form to establish himself as one of the genuine contenders for the prestigious trophy at the start of the week.

He didn’t disappoint as he shrugged off the challenges of a host of quality players including Sergio Garcia, Paul Casey and Davis Love III to become the third Thai after Thaworn Wiratchant (2001) and Prayad Marksaeng (2017) to lift the trophy with a winning total of 18-under-par 266.

“I wasn’t expecting to win actually. I was going for The Open ticket. I felt the pressure when I got to the back nine today. I had a three-shot lead after turning in 21. I know anything can happen on this course,” Janewattananond said.

“I am going home to celebrate with my family tonight. My dad went for a surgery recently and I really want to see him now and share this trophy with him.”

Casey surmounted a strong challenge by signing for a 65 but it was never going to be enough to catch Jazz, who was unstoppable on the Sunday afternoon at Sentosa Golf Club. 

RIGHT: Jazz bows to the crowd during the final round of the Singapore Open at Sentosa Golf Club. PHOTO: ROSLAN RAHMAN/AFP/Getty Images.

The Englishman had to settle for a share of second place with overnight leader, Yoshinori Fujimoto of Japan.

England’s Matthew Fitzpatrick, who was making his debut at the Singapore Open, closed with a 69 to take outright fourth place while Thailand’s Prom Meesawat and Korea’s Doyeob Mun share not only fifth place but will also make their way together to Royal Portrush in July.

The 2019 Singapore Open was part of The Open Qualifying Series for the third consecutive year where the leading four players (not otherwise exempt) who finish in the top-12 and ties on the final leaderboard will earn coveted spots at the 148th Open at Royal Portrush Golf Club in Northern Ireland from July 18-21.