"It was fun for sure, but I was trying to focus, too," Levin said of the huge crowd and party atmosphere. "You don't get that too often, all those people cheering."
Nor did the rowdy crowd worry Chalmers, the Australian Open and Australian PGA champion, who shot 67 to climb into a share of fifth at nine-under.
The West Australian lefthander's five birdies included one before the baying throng at the packed par-three 16th stadium hole.
Countryman Matt Jones also responded positively in the noisy ambience, shooting a 67 to be tied with Leishman (68) in 12th spot at seven-under.
Leishman's rollercoaster round included seven birdies, including four straight to finish from the 15th but also two bogeys and a double bogey at the 12th.
Levin went into the third round with a five-stroke cushion after opening rounds of 65 and 63 and showed his mettle as he notched four birdies against his only bogey of the tournament so far at the par-five 15th.
Levin was unsure whether the party atmosphere would help or hinder his quest for a maiden title on Sunday.
"You know, I never really thought about that," he said.
"I don't know - those fans on 16 are pretty cool. The guys on the left were cool. They were rooting for me, so hopefully they keep rooting for me, so that felt pretty good. That kind of eased it up a little bit.
"I don't know; that's a good question. But it sure is a lot of fun, though, man. Those last few holes are a lot of fun. It's a cool feeling going to 16. You can't really buy that feeling."
- AAP
