The West Indies-South Africa match was virtually a quarter-final match. The winner goes through to the next round.
In the end it was South Africa, who inched their way into the semis courtesy of a better run rate in a rain affected game.
Colin Ingram was the star with the bat for South Africa with a fluent 73. David Miller played an unbeaten cameo of 38 to help South Africa post a formidable 230 for six.
Ingram drove West Indies' most potent one-day bowler Sunil Narine out of the ground and hit another six off Darren Sammy with a similar shot over long-on.
He put on 80 for the first wicket with Hashim Amla who was caught at cover by Gayle off Samuels for 23 in the 13th over.
Ingram then combined well with skipper AB de Villiers adding 44 runs from just five overs to give South Africa the momentum.
Ingram used his feet adroitly, moving into the drive and stepping back to cut into the gaps, reaching his half-century from 46 balls.
He was out caught in the deep off Pollard's medium pace, mistiming a lofted on-drive. Duminy fell shortly after for two, caught behind off Bravo trying to swing the ball to leg.
Photograph: Philip Brown/Reuters