Australia's reigning Open Champion closed with the equal low round of the tournament, a sizzling five-under-par 65, at Oak Hill Country Club in Rochester.

Although he was virtually without a chance stealing the Wanamaker Trophy, a fact confirmed after Austrian Sepp Straka matched his 65 to finish one stroke better at two-under for the championship, Smith nevertheless rocketed up the leaderboard and into the top-10 with his Sunday blitz and eventual tie for ninth.

In another glimpse of what has been missing from the PGA Tour since his defection to LIV Golf, Smith collected seven birdies and made a 14-foot par putt at the last to ensure the World No.8 finished in red numbers.

"The goal today was to get back in the red and just kind of see what happens," he said.

"Obviously, the course softened up yesterday with all that rain, and the fairways were holding up a little bit more rather than running off into the rough.

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"The greens were quite receptive, too. It was definitely a gettable golf course.

"Yeah, just happy to really just string a round here. That was good to see."

"The goal today was to get back in the red and just kind of see what happens ... Yeah, just happy to really just string a round here. That was good to see." – Cam Smith.

Smith started on fire, with birdies on four of opening six holes before dropping a shot on the 7th.

But he picked up three more birdies on the back nine, with his only other blemish coming at No.17 when pressing hard in his pursuit of eventual American winner Brooks Koepka.

Smith's countryman Cam Davis also made a final day move, the New South Welshman finishing in a share of fourth as the low Australian after matching Smith’s 65, with a putt for 64 coming up just short at the 18th.

Davis’ finish earns him an invite to Augusta next year, where Smith is guaranteed an appearance after his win at St Andrews in 2022.

After starting his round as the leading Australian, Min Woo Lee closed with a one-over 71 to finish in a tie for 18th at two-over-par for the championship, while Adam Scott closed with a 69 to finish his 87th consecutive major championship at five-over-par, one shot better than Lucas Herbert, who had a final round of 70.