NORTON, Mass. -- PGA champion Justin Thomas made three long birdies on a long, wet TPC Boston for a tournament-best 63, giving him a share of the lead with Marc Leishman going into a Labor Day finish in the Dell Technologies Championship.
Leishman also played bogey-free Sunday and had three straight birdies on the back nine for a 65.
They were at 12-under 201 with no room for error on a leaderboard that was packed with some of golf's best players.
Paul Casey, who played in the final group last year at TPC Boston, shot 67 and was one shot behind.