Dustin Johnson made the most of good scoring conditions to be in a six-way tie for The Players Championship lead after the first round on Thursday.
Johnson, Webb Simpson, Chesson Hadley, Alex Noren, Matt Kuchar and Patrick Cantlay all shot six-under 66s at TPC Sawgrass.
Simpson, Noren and Johnson all exploited the course in the morning as they were at six under before the afternoon rounds even teed off.
Johnson posted a clean card with six birdies and no bogeys and the world number one was pleased with his putting.
"I don't think I putted very well around here as a whole," Johnson told reporters after his round.
"That's one thing I've struggled around here with, and today I rolled it nicely."