"The wind was up a little bit compared to Thursday but the nice thing about this golf course is that it is designed with this wind in mind", said McIlroy.
Gary Woodland of the United States walks on the 17th hole during the second round of the Sentry Tournament of Champions at the Plantation Course at Kapalua Golf Club on January 4, 2019 in Lahaina, Hawaii.
Woodland - a three-time PGA Tour victor and last year's Phoenix Open champion - jumped to the top of the leaderboard thanks to back-to-back 67s, which included eight birdies and a pair of bogeys.
"I just tried to keep my composure as much as I could - that's the hardest part when you get off to a good start and then have a hole like (the eighth)", Day said after his round.
Although first-timers typically don't perform well on the severely undulating slopes at the 7,500-yard Kapalua course, Tway carded seven birdies and no bogeys during a seven-under-par 66.
He was in the winners-only field thanks to his July victory at the Greenbrier.
"I was just trying to hit the green", he said.
Kevin Tway now tops the leaderboard at six under at the first US PGA Tour event of the year, while Leishman is joined in a share of second by Kizzire, former US Open victor Webb Simpson and Andrew Putnam.
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Three golfers - Tiger Woods, Phil Mickelson and Justin Rose - qualified but are not playing.
Perhaps the most noticeable change is that players can now leave the pin in while putting, something that previously was not allowed.
The world No. 5 has not changed his mind about the new rules, although he said there would be one exception.
"He was just watching me play for his preparation".
American Woodland embraced the conditions in Maui County, Hawaii following a six-under-par 67 in round two on Friday.
"So, I was able to take advantage of those chances over the back nine again today".