When their third rounds ended, Tyrrell Hatton, Abraham Ancer, Ryan Palmer and Webb Simpson held the lead at the RBC Heritage.
When their fourth rounds begin on Sunday, their advantage could be gone.
Seventeen players are within three shots of the foursome at the top, and they play a day after 57 of the 70 players who made the cut shot par or better.
At 12:30 p.m., Bryson DeChambeau starts the group at 12-under, three shots behind; at 1 p.m., Corey Conners begins the group at 13-under; and at 1:40 p.m., Joel Dahmen kicks off the group at 14-under. Palmer and Simpson tee off at 2 p.m., and Hatton and Ancer at 2:10 p.m.
The Golf Channel will broadcast the tournament from 1-3 p.m. ET, and CBS will continue coverage from 3-6 p.m. ET.
The fourth-round tee times are below:
RBC Heritage Round 4 tee times (All times ET)
Tee No. 1
8:05 a.m. – Xander Schauffele
8:10 a.m. – Danny Lee, Jordan Spieth
8:20 a.m. – Wesley Bryan, Bubba Watson
8:30 a.m. – Stewart Cink, Troy Merritt
8:40 a.m. – Ryan Armour, Gary Woodland
8:50 a.m. – Bernhard Langer, Brian Stuard
9 a.m. – Peter Malnati, Harry Higgs
9:10 a.m. – Ernie Els, Matthew NeSmith
9:20 a.m. – C.T. Pan, Vaughn Taylor
9:30 a.m. – Brian Harman, Jim Herman
9:40 a.m. – Dylan Frittelli, Chez Reavie
9:50 a.m. – Max Homa, Jason Dufner
10 a.m. – Bill Haas, Rory Sabbatini
10:10 a.m. – Collin Morikawa, Harris English
10:20 a.m. – Branden Grace, Sepp Straka
10:30 a.m. – Christiaan Bezuidenhout, Wyndham Clark
10:40 a.m. – Viktor Hovland, Chesson Hadley
10:50 a.m. – Adam Hadwin, Mark Hubbard
11 a.m. – Charl Schwartzel, Maverick McNealy
11:10 a.m. – Justin Thomas, Jon Rahm
11:20 a.m. – Mackenzie Hughes, Matt Jones
11:30 a.m. – Matt Kuchar, Sebastián Muñoz
11:40 a.m. – Justin Rose, Lucas Glover
11:50 a.m. – Scott Stallings, Rory McIlroy
Noon – Jhonattan Vegas, Doc Redman
12:10 p.m. – Sam Ryder, Tyler Duncan
12:20 p.m. – J.T. Poston, Tony Finau
12:30 p.m. – Bryson DeChambeau, Matt Wallace
12:40 p.m. – Dustin Johnson, Brooks Koepka
12:50 p.m. – Alex Noren, Andrew Landry
1 p.m. – Corey Conners, Brice Garnett
1:10 p.m. – Ian Poulter, Matthew Fitzpatrick
1:20 p.m. – Erik van Rooyen, Michael Thompson
1:30 p.m. – Chris Stroud, Sergio Garcia
1:40 p.m. – Joel Dahmen, Joaquin Niemann
1:50 p.m. – Carlos Ortiz, Daniel Berger
2 p.m. – Ryan Palmer, Webb Simpson
2:10 p.m. – Tyrrell Hatton, Abraham Ancer