Chile's Niemann wins second PGA Tour title at Riviera

Joaquin Niemann's gritty even par 71 was enough to give the 23-year-old Chilean his second PGA Tour title on Sunday, a two-shot triumph in the Genesis Invitational at Riviera Country Club.

On a chilly day west of Los Angeles, Niemann couldn't match the fireworks of the back-to-back 63s he shot on Thursday and Friday.

But his 19-under total of 265 gave him a two-stroke victory over world number two Collin Morikawa and US rookie Cameron Young.

Morikawa surged up the leaderboard with an impressive six-under par 65 for 267, while Young, who started the day three adrift, carded a one-under 70.

Niemann, who had already broken the tournament's 36-hole and 54-hole scoring records, looked on course to break the 37-year-old 72-hole record of 264 set by Lanny Wadkins back in 1985.

¡Vamos!@JoacoNiemann rules at Riv. ?? pic.twitter.com/XjPINDzXKJ

Even for the day after a bogey and a birdie on the front nine, he missed a five-foot birdie attempt at the 10th then chipped in for eagle at the 11th to reach 21-under - and take a five-shot lead over playing partner Young.

But back-to-back bogeys at the 14th and 15th - where his five-foot putt for par lipped out - saw Niemann's lead dwindle.

Young, who was one-over for the day through 10 holes, gained ground with a birdie at the 11th and a hole out for birdie at 15 after he'd been in a fairway bunker.

But he couldn't apply consistent pressure, giving a stroke back when he was unable to get up and down from a greenside bunker at the par-three 16th before his last birdie of the day at the 17th.

Morikawa, who could have toppled Spain's Jon Rahm from the number one world ranking with a victory this week, holed out for a birdie at the seventh and an eagle at the 10th in his impressive round.

He was within