NJ Arnoldi, Teboho Sefatsa, Myburgh and amateur Aubrey Beckley all shot five-under-par 67 to station themselves at the top of the leaderboard.
“I’m very happy about that round. I don’t know if you know but I made an albatross today; that’s my first albatross so I was quite happy with that,” he said. “Usually I struggle on fast greens like these but I putted solidly today. I had one three-putt.”