It will be a wide-open final round, however, as 27 players are within five shots of the lead, most notably Steve Stricker, who is seeking a Hawaiian double after winning last week's Hyundai Tournament of Champions. Stricker is four back at 8 under after a 67.
In third place on 10 under are Johnson Wagner, Brendon de Jonge and Charles Howell III. Wagner and Howell shot 66 on Saturday at Waialae CC. After a 62 on Friday, de Jonge was five shots higher on Saturday.
Duffy Waldorf and D.A. Points share sixth on 9 under.
Maggert, who will turn 48 next month, is searching for his first PGA Tour win since the 2006 FedEx St. Jude Classic.