Mullinax had a course-record 62. He played the back nine in 7-under 29, going 6 under on the last five with eagles on the par-5 14th and 18th and birdies on 16 and 17. He also birdied Nos. 10 and 12 and bogeyed 11. Johnson played the front nine in even par with two birdies and two bogeys. He birdied Nos. 11, 14, 15 and 18 on the back nine. Landry had a bogey-free round. Ryan Moore was two strokes back at 11 under after a 70. Sean O’Hair had a 65 to join 2015 champion Jimmy Walker (67), Chris Kirk (68) and 2013 winner Martin Laird (69) at 9 under.
On 18, Mullinax hit a 3-iron from 255 yards to 15 feet to set up his eagle putt. He broke the course record of 63 set by Matt Every in 201 and matched by Laird in 2013. The tournament record is 60 at LaCantera, by Bart Bryant in 2004 and Johnson in 2009.