South Africa's Garrick Higgo came from behind to seal his maiden PGA Tour title at the Palmetto Championship at Congaree in South Carolina on Sunday.
The 22-year-old produced a composed three-under 68 to finish 11-under par to secure a remarkable one-shot win.
The Johannesburg-born golfer started the final round six shots behind American Chesson Hadley, who bogeyed the final three holes to slip into a six-way tie for second.
Higgo is the first player to win in one of his first two career PGA Tour starts since Jim Benepe won the 1988 BMW Championship in his Tour debut.
He became the second South African to win on the PGA Tour this season after Branden Grace's Puerto Rico Open win in March.
Higgo banked a cool $1 314 000 (R18 million) for his triumph and moved to number 80 in the FedExCup standings
His win also saw him become South Africa's second highest-ranked golfer, moving up 15 places to 39th.
"I'm just proud of the way I hung in there," said Higgo in his virtual press conference on Sunday.
"It was tough all the way from the start. Definitely didn't have my A game in terms of off the tee, but I like that sometimes. I like not having to play perfect golf. I enjoy scrambling and making a couple putts, which I did, which was awesome."
Higgo earned a two-year exemption to the PGA Tour, which will take him through the 2022-23 season.
There's no rest for Higgo, who will tee off in this week's third major of the year, the US Open at Torrey Pines Golf Course in San Diego.