Glover shot a 5-under 66 over the Port Royal Golf Club course for a two-day total of 131.
The event brings together the winners of the year's four major championships and was played for the 27th time.
Glover began the day with a two-shot lead over British Open champion Stewart Cink and fell into second place behind Cink through seven holes. Glover, however, birdied the 10th and 11th holes and Cink bogeyed the 12th and 13th along with a double-bogey on the 15th.
Cabrera, who won the Masters in a three-way playoff, got hot on the back nine and also shot a 66 to finish the two-day event at 136. Cink wound up at 137 and PGA Championship winner Y.E. Yang closed at 141.
"Everybody else was off to a pretty quick start," Glover said. "I got it turned around towards the end of the front nine and played pretty good golf from there."
Glover's five-shot margin of victory was the tournament's largest since Tiger Woods defeated Phil Mickelson by seven in 2005.
Copyright 2009 by United Press International.