American Express tournament: 3 things to know after Round 1

The leader replaced the world No. 2. You couldn’t tell the difference. Golf’s version of next man up. Here are three things you need to know after Thursday’s first round of the American Express, played on two courses at PGA West in La Quinta, Calif. 

Brandon Hagy leads 

Brandon Hagy bogeyed his first hole. 

He played like Jon Rahm after that. 

Hagy, in the tournament after the world No. 2 withdrew on Monday, birdied six of his next eight holes on the front nine of Nicklaus Tournament Course, then birdied four of his last six holes for an eight-under 64 and a one-shot lead over Byeong Hun An. Max Homa, Si Woo Kim and Martin Laird are two strokes back. 

“I think I’ve been working on some good stuff the last couple weeks and I hit a lot of iron shots close and I made kind of those 10- to 15-foot mid-range putts the whole day, which you’re going to have to make a few of those to put 10 birdies on the card,” Hagy said. 

59 players are within five shots of the lead 

An, Homa, Kim and Laird made as many bogeys combined — two — as Hagy did. An shot a bogey-free 65 on the Nicklaus; Kim a bogey-free 66 on the Stadium Course; Homa birdied his first four holes for a 66 on the Nicklaus; and Laird made seven birdies on the Nicklaus.

Nine players are three shots back of Hagy, including Charl Schwartzel. Twenty-four players are four strokes behind, including Patrick Reed, Tony Finau and Sungjae Im, and 22 players are five back, including Patrick Cantlay. 

Phil Mickelson is 10 strokes behind 

Among other players, Patrick Cantlay is five shots back, Matthew Wolff seven, Brooks Koepka eight, Rickie Fowler nine, and Phil Mickelson is 10 strokes behind.