Australian Jason Day withstood three amazing comebacks from his opponent to win the World Golf Championships Match Play Championship at Dove Mountain, Arizona.
Day has opened a 3-up advantage through nine holes and was two-up with two to play when Frenchman Victor Dubuisson launched a fightback to square the match and force a sudden-death playoff.
Twice more Dubuisson would be in trouble; twice more he would produce spectacular shots to keep the match going.
Finally on the 23rd hole, Day secured the greatest win of his career.
As the winner, he receives $US1.53 million ($A1.70 million) and a three-year exemption on the US PGA Tour.
The victory also catapults him to world No.4.
Day moved into the final by dispatching American Rickie Fowler 3 and 2 in the semi-finals earlier in the day.
Dubuisson played from this piece of desert to put the ball within two feet of the hole