Deyzel carded a four-under-par 68 to open up a three-shot advantage over second-placed Jason Roets. He sits on 11-under-par 133 heading into the final round.

Having started the day tied for the lead with Divan de Villiers on seven-under-par, Deyzel endured a mixed front nine. He bogeyed the third hole, responded with a birdie at the fourth, dropped another shot at the fifth and immediately recovered with a birdie at the sixth to make the turn in level-par 36.

He then produced a flawless back nine, collecting four birdies over his final five holes. Birdies at the 14th, 16th, 17th and 18th saw him come home in four-under-par 32 to seize control of the tournament.

Roets is second on eight-under-par 136 after posting a five-under-par 67 in the second round. Grant Ferreira and Luke Brown share third place on seven-under-par 137.

Slade Pickering and Keagan Thomas are tied for fifth on five-under-par 139.