The Perth resident has a five-shot advantage over Queensland's Chris Downes. Adrian Percey (68) is a stroke further removed.
'I'm just putting it on the green and holing a few putts,' Ball said.
'I was nervous out there today, but once I got going I just wanted to enjoy the day and I did. The course suits me. It is not overly long and is in great condition. You just have to keep the ball in play and a few greens are a bit tricky.'
Ball showed no sign of nerves as he birdied the first, fourth, fifth and sixth holes. He also added an eagle-3 at the 13th en route to a bogey-free score.
While Ball dominated The Vines venue, halfway leader Chris Downes, who opened with a sensational 63, shot an even-par 71 in the third round.
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