Scottie Scheffler continued the 62 -round training course record with 69, in 12 below, along with Ryan Fox (65) and Ryan Gerrard (68).
“Yesterday, I had penetrated a group of Bots, and I feel today that I couldn't get the ball to go in the hole,” she said. “I feel like I hit a lot of good nails.
“There is not much you can do there. Try shooting at a low level as possible today and I will try to do the same tomorrow.”
Rorre McLeroi from Northern Ireland produced a 65th round, which included three birds and eagle, to move to nine under equality.
“I played well,” McLeroi said. “It was good to go out there and play appropriate.
“I certainly did not have my best, but I launched a decent tour and we hope it would be another good.”