The 23-year-old Californian won the Sanderson Farms Championship by four shots with a 21-under 267 score in Jackson, Mississippi on Sunday.

Champ was still an amateur 12 months ago and preparing for the second stage of the PGA Tour's qualifying school after helping the United States win the Walker Cup.

He successfully navigated qualifying school, then won on the Web.com Tour in 2018 to earn his PGA Tour card and the Mississippi event was his second event since.

"All the hard work over the years, all the sacrifices my family has made for me to be able to have this opportunity. This last year has been just amazing.” – Cameron Champ

"It means everything," Champ said after a final round 68 in which he was forced to use a spare driver after cracking his regular club shortly before teeing off.

"All the hard work over the years, all the sacrifices my family has made for me to be able to have this opportunity. This last year has been just amazing.

"I was in school at this time last year, made it through q-school, Web.com Tour and now PGA Tour winner is just unreal."

FINAL LEADERBOARD

Champ took a four-shot lead into the final round at the Country Club of Jackson, but saw that wiped out in the space of nine holes as he covered the front nine in 37 and playing partner Corey Conners of Canada birdied the 2nd, 3rd and 9th.

However, Champ responded superbly with four birdies in succession from the 13th, the last with a putt from 35 feet.

He also birdied the 18th to win comfortably from Conners who dropped his only shot of the day at the last.

Curtis Luck was the best of the Australians, finishing T50.