McIlroy new World number one
Seamus Power finished up in a tie for 38th at the AT&T Pro-AM in Pebble Beach overnight.
A 2-over-par final round of 74 saw him finish 2-under for the tournament, 17 shots off winner Nick Taylor of Canada, who earned himself a place at the Masters with the victory.
Rory McIlroy is top of the Official World Golf Rankings this morning for the first time since 2015.
The four-time major winner Ulsterman leapfrogs Brooks Koepka following the action at Pebble Beach.