Marc Leishman and Jason Day were left to rue a series of scorecard blowouts that crippled their hopes of continuing Australian success at the elite Tournament of Champions in Hawaii.
Both players produced enough birdies and eagles to threaten eventual winner Xander Schauffele, but Leishman was the leading Australian in a tie for fourth at the winners-only event on Maui.
World No.20 Leishman failed to get out of first gear during a final round of two-under-par 71 and at 15 under he finished eight shots back of Schauffele at Kapalua's Plantation course.
The big-hitting Schauffele bogeyed the par-4 first hole but responded with a dazzling display of eight birdies and two eagles during a course record-equalling 11-under 62.
California native Schauffele finished at 23 under for a one-shot victory from overnight night leader Gary Woodland (68) while 2017 Kapalua champion Justin Thomas (65) was outright third at 18 under.
In Leishman's third visit to the winners-only event in Maui, three bogeys, a double-bogey and a triple-bogey cruelled his hopes of adding a sixth title for Australian golfers since the event moved to Hawaii in 1999.
"It was a frustrating final day; the putts didn't really go in," said Leishman, who will rise two spots to No.18 on the world rankings.
"I played really good this week and I'm glad I still finished fourth.
"But there were just too many mistakes; you take the double and the triple out and I'm right up there ... but that's golf."
Fellow Australian Day had as many birdies (23) in four rounds at Kapalua as Schauffele, signing off in style with a 66 that left him 13th at 11 under.
But former world No.1 Day showed competitive rust with nine bogeys, a double-bogey and a triple-bogey.
Perennially ranked as one of the PGA Tour's best putters, Day uncharacteristically missed two putts inside two feet.
"I always have birdies in me, which is good, I just need to not miss one-foot putts," Day said.
"Today was really positive with the way I hit it; I drove it nicely and hit a lot of quality iron shots.
"Once I minimise mistakes, that's when results will start to come this year."
Leishman will contest this week's Sony Open in Hawaii, while Day's next tournament is the Farmers Insurance Open later this month, where he will defend his 2018 title.