England's Tyrrell Hatton is now up to 17th in the world after going back-to-back, again beating a fast-finishing Ross Fisher.
In numbers - Justin Thomas joins the elite '59 club'
7 – No. of players to break 60. Thomas follows Al Geiberger, Chip Beck, David Duval, Paul Goydos, Stuart Appleby and Jim Furyk into the record books.
23 – The youngest player to do so. Duval was 27 when he managed it in 1999.
11 – Shots under par. He even managed a bogey – Furyk also had a bogey in his 58. For Thomas there were eight birdies and the round began and ended with an eagle.
5 – No of straight birdies, from the 16th to the 2nd.
206 – Yards left in for Thomas’ approach from sand at his final hole. He found the green and made the putt.