Dustin Johnson won the Dell Technologies Match Play in Austin, Texas, with more drama than he needed to cap off an otherwise dominant week that made him the first player to sweep the four World Golf Championships.

The scorecard will show Johnson never trailed in any of his seven matches over 112 holes, ending with a 1-up victory over Jon Rahm for his third straight victory that left no doubt who was No. 1 in the world.

Playing the 356-yard 18th hole for the first time in competition all week, and needing a birdie to send this heavyweight bout to overtime, Rahm smashed driver over the back of the green. But his chip down the slope checked up and stayed short of the ridge, and he had to settle for par.

Johnson came up just short of the green, chipped to 30 inches and rolled in it to complete another big week.

None of his first five matches went longer than 16 holes until Sunday, when Johnson faced the first threat of the week. Hideto Tanihara caught him with two birdies on the back nine, and Johnson needed a pitching wedge to 6 feet on the short but troublesome par-3 17th to take the lead again. Then, he had to make an 8-foot par putt to beat Tanihara and avoid extra holes.

Rahm, who dispatched Bill Haas in the semifinals 3 and 2, wanted to face the hottest player in golf in the championship. And for the longest time, it looked as though the 22-year-old Spaniard regretted it.

Rahm gave away three straight holes by missing par putts from 6 feet and 8 feet, and missing a birdie putt from 4 feet. Johnson stretched his lead to 5 up with yet another bogey by Rahm, and it looked as though this match might be over early.

Not so fast. Rahm, who already is No. 14 in the world in just his 15th tournament as a pro, began chipping away. Johnson three-putted the 10th hole for the third straight match, regained momentum with a two-putt birdie on the 12th hole — Rahm hit his tee shot downhill and downwind at 438 yards, Johnson at 424 yards — and then the Spaniard began his remarkable rally that came up short.

PGA Tour

D.A. Points started with five straight birdies and closed with a 6-under 66 to win the Puerto Rico Open in Rio Grande, Puerto Rico, on Sunday for his third PGA Tour title.

The great start wasn’t enough for Points when he made three bogeys in a five-hole stretch around the turn. He steadied himself, protecting a 1-shot lead going to the par-5 18th, and made birdie for a 2-shot victory.

Retief Goosen, Bill Lunde and Bryson DeChambeau tied for second.

LPGA Tour

Mirim Lee of South Korea shot a 7-under 65 to win the Kia Classic in Carlsbad, Calif. by 6 strokes Sunday and tie the tournament record of 20 under.

It was her third LPGA Tour victory and first since winning two titles in 2014, her rookie year.

Lee, 26, tied the tournament record set in 2015 by Cristie Kerr, who tracked down Lee with a 65 to win by 2 strokes.

Lee twice just missed putts that would have put her at 21-under. She left an eagle putt short on 16 and then rolled a 40-foot birdie putt even with the hole on 18.

So Yeon Ryu of South Korea and Austin Ernst of Greenville, South Carolina, tied for second at 14-under.

Lee came into the final round with a one-shot lead over Mi Jung Hur.