Golf Rankings for Humana Challenge in partnership with the Clinton Foundation

Overton has made three straight starts at the Humana, but has finished no better than 48th. He just finished solo eighth last week.

Fisher has a limited stateside resume, but has been productive on the European Tour. He is making his Humana debut.

Karlsson is a veteran on the European Tour with 11 career wins. He has never played in his event.

Gainey scored a T6 finish in the Hyundai and had a decent result brewing at the Sony until a poor showing during the final around. He has missed two straight cuts in the Humana.

Palmer followed his solo fourth in the Humana from 2011 by missing the cut last year. He experienced a mid-season hot streak, but faded down the stretch by missing three cuts in a span of five starts.

O'Hair hasn't played this event since 2006. He ended 2012 with two top-20s in the Fall Series.