Jordan Spieth was already No. 1 in the Official World Golf Rankings, but he managed to increase his lead at the top following an eight-shot romp at the Hyundai Tournament of Champions.
Spieth became just the second player ever to reach the 30 under plateau in a 72-hole, PGA Tour event, earning his seventh career Tour victory and sixth in the last 10 months.
Spieth's OWGR average is now 12.14, which is 1.4 points ahead of Jason Day who remains in second. To put that gap in perspective, that is the same margin that currently separates world No.