Last week's winner Louis Oosthuizen produced three eagles at the par-5s 5th and 15th and the par-4 6th as well as four birdies and three bogeys for a 65 to move into the lead by one shot at 14-under at the AfrAsia Bank Mauritius Open.
"I think that was the first time I ever did three eagles in one round and I missed a short putt for eagle on eight," said the South African.
"I played really well, I got very lucky on number 12 finding my ball and then made a big putt for birdie, but all in all just played well.
"I was giving myself opportunities and I still feel like I'm rolling the ball good on the green so hopefully I can do the same tomorrow.
"I'm playing well so it's all going to be on how I manage myself and think process around this golf course.
"It's nerve-wracking and exciting at the same time to come here as the co-designer but Peter [Matkovich] has done a phenomenal job."
Fellow South African Jacques P de Villiers lies in second place at 13-under after carding a 68 featuring an eagle at the par-4 6th, five birdies and three bogeys.
England's Laurie Canter made seven birdies for a 65 and lies in third place at 11-under.
South Africans Jayden Schaper and Jaco Prinsloo both carded 67s for a share of fourth place at 10-under.