The 2016 US Amateur Champion overtook American Maverick McNealy in the top spot.

Luck heard the news while in Florida, where he’s preparing for the Arnold Palmer Invitational, and said the No.1 ranking had been a long-term goal of his.

“Since I started playing really seriously when I was 14 or 15 – it’s been my goal from there,” Luck said. “So for five years I’ve been trying to reach that No.1 spot.

“I haven’t been checking (the rankings) lately so didn’t know it was getting so close, so to wake up this morning and see it had ticked over was pretty cool.”

The 20-year-old, whose US Amateur victory earnt him an invite to next month’s Masters, said he’s excited to be ticking off goals.

“It was one goal for 2017 checked off the list,” Luck said. “So I can now move on to the next one, which is obviously playing and doing well at the Masters – so we’ll see how it goes.”