AVONDALE, La. — Cameron Smith and Marc Leishman outlasted Louis Oosthuizen and Charl Schwartzel to win the Zurich Classic in a playoff that capped a tight and tense final round Sunday.

Smith and Leishman won with a par on their second trip up the par-5 18th after Oosthuizen pushed his tee shot into the water and narrowly missed an 11-foot putt for par.

The Australians forced the playoff by shooting a 2-under 70 in alternate-shot play at the PGA Tour’s lone regular-season team event. Oosthuizen and Schwartzel began the round with a one-stroke lead, but shot a 71 with three pars and two bogeys.

It’s Smith’s third career victory — second at the Zurich team event — and best result since tying for second at the pandemic-delayed 2020 Masters last November. It’s also was his sixth top 10 since the current tour season started last October.

Smith’s last victory came at the 2020 Sony Open in Hawaii.

It was Leishman’s sixth career victory, his best result since tying for fifth at the Masters this month and his first win since the 2020 Farmers Insurance Open.

The climactic finish capped off a compelling duel between two teams that teed off together in the final grouping and took turns holding leads that never grew to more than two strokes.

After Smith made birdie putts of 9 feet on the par-5 seventh and 7 feet on the par-3 ninth to pull his team even atop the leaderboard, the Aussies went in front on 10, when Schwartzel’s approach found the bunker and his team two-putted for bogey.

Smith and Leishman took a two-shot lead with a birdie on the par-5 11th, where Leishman drove 307 yards into the fairway and Smith sent the team’s second shot 265 yards to the green, setting up a birdie.