Collin Morikawa (64) opens 5-shot lead at Hero World Challenge

Collin Morikawa fired a 64 to open up a five-shot lead Saturday after 54 holes at the Hero World Challenge in the Bahamas.

Morikawa sits at 18-under 198 heading into Sunday's final round. Brooks Koepka is a distant five shots back, alone in second place at 13 -under par.

Five players are tied for third at 12-under. Second-round leader Bryson DeChambeau is ninth at 10-under after a 73.

Morikawa's round was bettered only