American Justin Thomas has won his first major golf title, securing a two-shot win over countryman Patrick Reed, South African Louis Oosthuizen and Italian Francesco Molinari.

Thomas shot a final round three-under 68, to finish at eight-under for the tournament.

Jason Day was the best placed of the Aussies, finishing at one-under, while fellow Aussies Marc Leishman and Adam Scott scored even-par and eight-over respectively.