The last two U.S. Open winners are both 1 over par after the first round at Royal St. George's, along with defending champion Shane Lowry. Thomas is 2 over par.
Louis Oosthuizen leads the way at Royal St. George, with Jordan Spieth and Brian Harman a shot further back.
World No. 1 Jon Rahm is the bookmakers' favorite as he looks to win a second consecutive major.
Russell Henley and Louis Oosthuizen lead the way at Torrey Pines, with Brooks Koepka and Jon Rahm two shots adrift.
The third major of the season gets underway at Torrey Pines on Thursday with Jon Rahm as the bookmakers' favorite.
The four-time major winner appeared to be clearly unimpressed by the reigning U.S. champion during a TV segment on Friday.
Mickelson on Sunday not only became the oldest golfer to ever win a major title, but the first player at least 50-years-old to win one.
Mickelson, who leads going into the final round, can become the oldest player to ever win a major championship if he triumphs on Sunday.
Phil Mickelson versus Brooks Koepka showdown looming this weekend, and the Masters champion is in the hunt as well.
Corey Conners is the bookmakers' favorite at 7-1 after taking a two-shot lead in the first round at Kiawah Island.
Canada's Corey Conners leads by two strokes after shooting a 5-under par 67 in the first round, with Brooks Koepka and Phil Mickelson two and three shots behind.
Tiger Woods will begin the second round at 4:58 p.m. ET alongside world No. 1 Justin Thomas and Rory McIlroy.
Brooks Koepka trails the leaders by one shot after the first round, while Tiger Woods is two shots further behind in his second start since February.
The 15-time major winner has been paired with world No. 1 Justin Thomas and four-time major winner Rory McIlroy for the first two rounds.
The first major of the season begins at TPC Harding Park in San Francisco on Thursday as Brooks Koepka looks to win a third consecutive title.
Collin Morikawa, Tommy Fleetwood and Cameron Champ are among the outsiders worth keeping an eye on at TPC Harding Park this week.
Brooks Koepka is the bookmakers' favorite to win the tournament for a third consecutive time, with world No.1 Justin Thomas close behind.
The first major of the golf season gets underway on Thursday at TPC Harding Park in San Francisco, California.
Brooks Koepka posted his lowest score on the PGA Tour in four years as he took a two-shot lead at TPC Southwind.
Nine of the world's top-10 ranked golfers are in action at the WGC-FedEx at TPC Southwind in Memphis this week.
World No. 1 Jon Rahm has been paired with Rickie Fowler and Bryson DeChambeau for the first two rounds at TPC Southwind this week.
World No. 1 Jon Rahm is an 8/1 favorite, followed by Justin Thomas and Rory McIlroy at 10/1 and 11/1.
Tony Finau trails leaders Richy Werenski and Michael Thompson by one shot, but Brooks Koepka missed the cut for the second time in three weeks.
Richy Werenski is the surprise leader after the first round, while bookmakers' favorite Dustin Johnson has been forced to retire.
Dustin Johnson is the bookmakers' favorite to win at TPC Twin Cities, while Brooks Koepka looks to put his recent form behind him.
Bookmakers' favorite Dustin Johnson will play alongside Tommy Fleetwood and Tony Finau in the first two rounds.
Dustin Johnson is the bookmakers' favorite to win at TPC Twin Cities, closely followed by Tony Finau and Brooks Koepka.
Woods carded a 1-under par 71 in the opening round on Thursday and will begin the second round five shots adrift of leader Tony Finau.
Tiger Woods has been paired with world No. 1 Rory McIlroy and four-time major winner Brooks Koepka for the first two rounds at Muirfield Village.
Tiger Woods makes his return to the PGA Tour after five months as he looks for a sixth title in Dublin, Ohio.