Scientists who studied the World Cup found these players hit more runs, batted longer and tended to lose their wickets only because they slogged out.
But the explanation for this better performance is not so straightforward.
The researchers think the bowler's experience of left-handers is crucial because the advantage is less evident at the highest levels of the sport.
Lower league bowlers may not have the experience to deal so readily with a player taking up the alternative stance and get hammered to the boundary more often.
"It's strategic in the sense that left-handers only have the advantage when they are rare," says Dr Rob Brooks, from the University of New South Wales, Sydney, Australia.