"I'm very confident with my driver at the moment", Oosthuizen said. His highest finish in a WGC event is 4th.
Louis Oosthuizen fired a bogey-free 64 to grab the early advantage at the WGC-Mexico Championship, where Chris Paisley made an impressive start.
Three weeks after lifting a fourth European Tour title in Perth, the world No. 40 is keen to keep his name up on the leaderboard as he bids to improve on his previous best WGC finish of T18 at the 2016 WGC-Dell Technologies Match Play.
However he stumbled at the 10th and 17th to offset gains at 11 and 15 to finish even for the nine and likely pleased enough with his play.
World number one and defending champion Dustin Johnson shot 69, but last year's runner-up and European number one Tommy Fleetwood struggled to a 72.
Right behind were two players unfamiliar to the world stage, though they sure didn't play like it.
With the three-lined Chapultepec course being over 7,000 feet above sea level which results in golf balls flying further, Kiradech believes the key to his solid start was due to his ability to manage his distance control.
Boston Bruins go all-in, acquire Rick Nash from New York Rangers
Gorton has turned Nash, Nick Holden and Michael Grabner into three prospects (Lindgren, Yegor Rykov, Rob O'Gara) and four futures. The Rangers will retain 50 percent of Nash's contract and likewise, the Bruins will retain 50 percent of Beleskis's deal.
England's Chris Paisley, who was atop the leaderboard for much of the day, sits in a three-way tie at 6-under, along with 21-year-old Shubhankar Sharma, from India and 24-year-old American Xander Schauffele. I was also really happy with the birdie I made on 18.
"It's the biggest tournament I've played in by a long stretch", Paisley said.
The dropped shot moved him from 3-under and a share of eighth to 2-under and T13 though the tricky nature of the course means anything under par on day one was well earned.
The first of the year's World Golf Championships is living up to its billing with six nations represented in the top 12 players. "So I was very happy with the way I drove the ball", he said. "I think I maybe caught myself out a bit on the last few holes, maybe got a little bit ahead of myself and realised where I was". I just wanted the first round to get out of the way. Let's take a look at the players who will rise to the top of this elite field.
Oosthuizen was flawless at Club de Golf Chapultepec, holing an eagle and five birdies as he posted his lowest round at any of the four World Golf Championships.
While Oosthuizen is a veteran of the PGA and European Tours, Paisley is making his first career start on the PGA Tour.
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