Casey Jarvis was three shots behind after completing his second round in the morning but was in a tie for the lead by the time he reached the turn after making four birdies. He made two more on the back nine to close with a bogey-free 64 and the solo lead at 13-under at the ISPS HANDA Championship.
"It played pretty tricky, I don't find it very easy to get near these flags so I kind of played smart and just managed my game well around the course.
"I've been putting well this week so I made a few good par putts. My goal at the start of the day was to go bogey-free, I did it yesterday and again today which doesn't happen very often with me - I'm pleased about that."
The South African has been on form this year having made eleven of thirteen cuts in his first season on the DP World Tour after graduating from the European Challenge Tour.
"It would mean the world to win," said Jarvis. "I've worked pretty hard for this so I'll just go out tomorrow and stay patient and play every hole as it comes."
Germany's Yannik Paul who had held the lead since Thursday carded a 68 and slipped back into second place at 12-under.
China's Haotong Li (64), Japan's Ryosuke Kinoshita (66) and Keita Nakajima (65), France's Tom Vaillant (67) and Sweden's Sebastian Söderberg (69) are all tied in third place at 11-under.
