Billy Horschel shot an 8-under 64 in the final round of the Zurich Classic, maintaining his composure through two weather delays for his first-career PGA Tour victory on Sunday in Avondale, La.

The 26-year-old former Florida Gator began the day 2 shots behind third-round leader Lucas Glover and surged into the lead with six consecutive birdies after the first weather delay. He finished at 20 under, narrowly holding off Shell Houston Open winner D.A. Points, who shot a final-round 65 to finish 1 shot behind.

The second delay happened before Horschel could take his second shot on the 18th hole, giving him 50 minutes to reflect on what was at stake — $1.19 million and a two-year exemption.

Kyle Stanley shot a 5-under 67 to finish third, while Chinese 14-year-old amateur Guan Tianlang finished 71st after making his second cut in two PGA events, the first coming at the Masters Tournament.

Horschel sealed the win with a 27-foot birdie putt on 18, after which he pumped his arms and screamed in triumph, before sinking into a crouch and briefly pulling his cap over his face as the crowd roared.

Although Horschel had never won on the PGA Tour, he had been playing the best golf of his young career lately, with three top-10 finishes in his past three tournaments — tying for second in Houston, tying for third in San Antonio and tying for ninth in Hilton Head Island, S.C., a week ago.

He has also made a PGA Tour-leading 23 consecutive cuts, and had already earned $1.3 million this year. Now he has nearly doubled that, thanks to a final round that tied a single-round course record.

LPGA Tour

Inbee Park shot a bogey-free 4-under 67 to win the inaugural North Texas LPGA Shootout by a stroke over Carlota Ciganda, whose chance for a first LPGA victory was wiped out in a two-hole stretch in Irving, Texas.

Park, the world’s No. 1 women’s player, finished at 13-under 271 for her third victory this season and fifth in her last 18 starts. The 24-year-old South Korean sank a 4-foot birdie putt on the par-5 18th hole.

After starting the day 2 strokes behind Ciganda, Park went ahead to stay with consecutive pars on Nos. 14 and 15. Ciganda had bogey and double bogeys on those holes, part of her 70.

Suzann Pettersen, the winner in Hawaii last week, had a closing 66 to get to 10 under and finish third.

Champions Tour

After finishing second twice, Jeff Sluman finally won the Liberty Mutual Insurance Legends of Golf with a new teammate in Savannah, Ga.

Sluman, a two-time runner-up with Craig Stadler at the Champions Tour’s team event, partnered with Brad Faxon for a 1-stroke victory at the Club at Savannah Harbor. They had five birdies in a seven-hole stretch in the middle of their 7-under-65 round to get to 23 under and made par on their final four holes to hold on for the win with a 193 total.

Gene Sauers, playing in his hometown, teamed with Kenny Perry to finish tied for second with Fred Funk and Mike Goodes at 22-under. Stadler and Kirk Triplett were among eight teams to finish another shot back in a tie for fourth.

European Tour

Australia’s Brett Rumford eagled the first hole of a three-way playoff to win the Ballantine’s Championship in Seoul, South Korea.

Rumford was leading by 2 shots when he double-bogeyed No. 17. He holed a 10-foot par putt at the last to finish at 11-under 277 and force a playoff with Marcus Fraser of Australia and Peter Whiteford of Scotland. Rumford then holed a 4-foot eagle to earn the victory.