Xander Schauffele and Patrick Cantlay won the Zurich Classic of New Orleans with a tournament-record score of 29 under.

It was an incredible week for the duo, setting the course-record 59 in Thursday's four-ball format, and nearly matching it on Saturday with a 60, while also performing strongly in the alternate shot style in rounds two and four.

They also became the first team to win the tournament in wire-to-wire fashion, leading after all four rounds, and setting the record for best score at each interval.

Sunday was the toughest of the four days for the winners, after back-to-back bogeys on nine and 10 cancelled out their eagle on seven, with a birdie on 11 and a bogey on 18 capping off an even-par finish.

Speaking to the media after stepping off the 18th green, Schauffele expressed his excitement at winning alongside such a close friend.

"It's awesome – I said it earlier this week, if there's any success that I could share with someone, it would be Pat, so I'm happy we could get it done," he said.

"I'm not sure [how we broke all the records], we just plodded along. Today was the worst of our four quarters, but Pat was very calm, which helped me stay calm. 

"It's been a while since I've been in some sort of contention here, so I think it was just overall calmness and patience."

Cantlay added: "We had a lot of fun both on and off the golf course, and we're really happy to get it done. We definitely bring out the best in each other, and we really enjoy being out here together."

Sam Burns and Billy Horschel finished outright second, two strokes behind the leaders, but three strokes clear of third place with a score of 27 under that equalled the previous tournament record.

The pairing of Doc Redman and Sam Ryder finished outright third at 24 under, and with a 67 on Sunday, they were one of two teams – along with Burns and Horschel – to shoot four rounds in the 60s.

Davis Riley and Will Zalatoris posted the round of the day with a bogey-free 66, finishing with birdies on 17 and 18 to jump up into a tie for fourth at 23 under.

Joining Riley and Zalatoris at 23 under were the groups of Keegan Bradley with Brendan Steele, Harold Varner III with Bubba Watson, Taylor Moore with Matthew NeSmith, Garrick Higgo with Brandan Grace, and Aaron Rai with David Lipsky.

Reigning Masters champion and the season's points leader Scottie Scheffler finished at 18 under with partner Ryan Palmer, while The Players champion Cameron Smith was 17 under with compatriot Marc Leishman.

Father-son pairing Jay Haas and Bill Haas shot an even-par 72 to finish even or better in all four rounds as Jay became the oldest player to ever make a PGA Tour cut at 68 years old.