Casares - Anthony Kim of the United States has beaten Robert Allenby 5&4 to reach his first World Matchplay Championship final.
Kim, who beat the Australian 5&3 at the Presidents Cup, rallied from an early two-hole deficit in near perfect conditions at the Finca Cortesin golf course on Saturday before pulling away from the 27th.
The American first overcame an errant tee shot at the 26th to save par and halve the hole before holing out from 101 yards for an eagle at 27. He sank a birdie putt at the 28th for a four hole advantage that deflated Allenby.
Kim will face Masters champion Angel Cabrera or Ross Fisher of England in Sunday's 36-hole final. Cabrera was 1-up with five holes to play.