Kevin Na built on an impressive second round to take the lead at the Charles Schwab Challenge on Saturday.

The two-time winner on the PGA Tour carded a one-under 69 in the third round to hold a two-stroke lead over the rest of the field.

Na, who carded the best round (62) of the tournament on Friday, played steady golf at Colonial Country Club in Fort Worth, Texas.

Na finished the day with three birdies, including two to open the round on the first and second holes. His only mistake came on the par-five 11th, where he had his first double bogey of the week.

He is nine under for the tournament.

"Over the years I've had some good rounds [at Colonial] and it's a golf course you don't have to overpower. You have to keep it in play," Na said, via Golfweek.com.

"From fairway in I'm a pretty good player, so I think it plays right into my game."

Right behind him is a star-studded tie for second place at seven under, including Jordan Spieth, Tony Finau and Jim Furyk. C.T. Pan and Mackenzie Hughes join them.

Spieth's game, including his putting, has been superb this weekend as he is chasing his first win since the 2017 Open Championship.

It is a good sign for Spieth, who had failed to finish inside the top 20 this year until ending up tied for third at last week's US PGA Championship.

Spieth also opened his round with birdies after a 29-foot putt on the par-five first hole and another 20-foot putt on the par-four second.

Charley Hoffman and Austin Cook are locked in a tie for seventh place at six under while Ryan Palmer, Nick Watney and Jonas Blixt – who was leading the field after 36 holes – are tied for ninth at five under heading into Sunday's final round.

Jon Rahm and Ryan Palmer eased to a three-stroke victory at the Zurich Classic of New Orleans on Sunday.

Rahm and Palmer fired a three-under 69 in the final round, finishing at 26 under at the PGA Tour team event, which was delayed by weather on the opening day.

While Sunday's final round in the foursomes format was not as masterful as the third that put them into contention, Rahm and Palmer distanced themselves from the field behind four birdies. Their lone bogey came on the par-four sixth hole.

The victory means Rahm has now won in each of the past three seasons on tour while Palmer claimed his first since 2010.

Despite Rahm and Palmer never falling out of first place, there was still plenty of movement behind them on the leaderboard.

Sergio Garcia and Tommy Fleetwood climbed their way into second place behind a birdie putt from the Spaniard on the par-three 17th as they finished at 23 under.

Lee Kyoung-hoon and Matt Every moved into a tie for third place at 21 under with Brian Gay and Rory Sabbatini. Roberto Castro and Cameron Tringale highlighted the four-way tie for fifth place a shot further back.

The leaderboard also included a four-way tie for ninth place at 19 under that featured Ian Poulter and Sam Horsfield. 

The 54-hole co-leaders Scott Stallings and Trey Mullinax fell into a tie for 13th place at 18 under after their round was plagued with four bogeys and one double bogey.

Trey Mullinax and Scott Stallings share the Zurich Classic of New Orleans lead with Jon Rahm and Ryan Palmer heading into the final round.

Two teams are tied for the one-stroke lead at the halfway stage after Mullinax and Stallings carded a 62 on Saturday, while Rahm and Palmer posted a 64.

The field was eventually whittled down to 39 teams after a seven-plus hour delay pushed the second round into the weekend. Once the cut was set at eight under, the third round began and ended on the same day. 

Mullinax and Stallings fired off eight birdies on Saturday, including three in their first five holes, and the former carded the team's only eagle to move back into first place at 23 under. 

Rahm and Palmer used nine birdies to edge out the field and share the lead heading into the final round. The team was close to taking sole possession of first place, but the latter ended the round with a bogey on the par-three 17th hole. 

Rahm and Palmer knocked a streaking team of Branden Grace and Justin Harding into third place at 22 under.

South African duo Grace and Harding finished with the best round of the day (61) thanks to birdies on nearly every single hole on the back nine.

The pair made the turn after carding five birdies in their last six to open the round and continued the trend well into the day, with the only hiccup coming in the form of a bogey at the par-three 17th hole.

Also in contention is the team of Brian Gay and Rory Sabbatini (66), who sit in a tie for fourth place alongside Peter Malnati and Billy Hurley III (66) at 20 under.

Sergio Garcia and Tommy Fleetwood (64) highlight the teams in a six-way tie for sixth place and the Koepka brothers, Brooks and Chase (63), follow closely behind in tie for 12th at 18 under.

Henrik Stenson and Graeme McDowell join the Koepkas just outside the top 10 and despite falling five places down the leaderboard, they provided a hilarious highlight.

After McDowell eagled the par-four 16th hole from 89 yards out, he sat in a spectator's chair and pretended to drink out of his cup.