Aldrich Potgieter started the day with a two-shot lead and fired six birdies and three bogeys for a 3-under 69 to reach 22-under and enter a playoff for the Rocket Classic title.

Americans Max Greyserman and Chris Kirk both carded 67s to join the playoff. Greyserman stayed bogey-free while Kirk made one bogey and six birdies.

Kirk was eliminated after the second extra hole when he bogeyed the par-3 15th, Greyserman and Potgieter parred the 18th, 15th and 16th and birdied the 14th.

Finally Potgieter birdied the par-3 15th with a 17-foot, 10-inch putt to win his maiden PGA Tour title and become the seventh-youngest winner since the start of the 1983 season.

“It was a big grind. I mean, it was a very long day, kind of couldn’t get ahead of myself. I didn’t get off to the best start, so I knew there was a lot of holes still available, still to get back,” said Potgieter.

“There was a switch that kind of went off when I lost the lead and I kind of felt like I can kind of chase something. I kind of had to pull myself out of the environment I was in before those first couple holes and get in that chase mode where I can kind of play some different golf, golf that I played the first three days.

“When that went off, I birdied the par 5 on 7, birdied 8, had a really good look on 9, so I felt the momentum switch there definitely.

“It was definitely hard playing all those playoff holes where putts weren’t dropping where I had really good looks at it. It was nice to finish on a really good putt on the par-3 to get the victory, so that was good.”

The South African is the third winner under the age of 21 since the start of the 2020-21 season (Nick Dunlap/2024 American Express, 2024 Barracuda Championship; Tom Kim/2022 Wyndham Championship, 2022 Shriners Children’s Open).

He improves to 1-for-2 in converting a 54-hole lead/co-lead into victory on Tour (2025 Mexico Open at VidantaWorld/P2). 54-hole leaders/co-leaders have won 16 of 28 stroke-play events this season.

This was the longest playoff on Tour since the 2021 BMW Championship (Patrick Cantlay defeated Bryson DeChambeau after six holes.

Greyserman recorded a fourth runner-up finish in 47 start on Tour (2024 3M Open, 2024 Wyndham Championship, 2024 Baycurrent Classic, 2025 Rocket Classic).

American Michael Thorbjornsen fired eight birdies and three bogeys for a 67 and a share of fourth place at 21-under. alongside compatriot Jake Knapp who made six birdies and two bogeys to close with a 68.

Related: The 153rd Open – Final Qualifying Rounds – who will get a much coveted place?

With final qualifying for the 153rd Open taking place on 1st July, how will you find out who has been successful in attaining one of the remaining player places at this prestigious event?