It was struggle for South Africa from the word go as they lost wickets at regular intervals and failed to put on a substantial partnership to get to a wining total.
Despite having some many big hitting batsmen in their ranks, the Proteas could only hit eight boundaries and two sixes in their entire 20 overs.
Left-handed opener Quinton de Kock top-scored for South Africa with a 46-ball 47, while David Wiese made a valuable 28 lower down the order.
Hashim Amla became victim of a terrible mix up in the third delivery of the match, while skipper Faf du Plessis (9) was
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brilliantly holed out by Suleiman Benn at mid-off off Andre Russell in the last ball pf the second over, soon after the right-hander clobbered Russell over mid-off two deliveries earlier.
Rilee Rossouw was the next to depart for a duck, cutting a Chris Gayle delivery straight to Russell at point as South Africa slumped to 20 for three in three overs.
While going for an outrageous flick through midwicket, De Villiers got a thick inside edge straight onto his stumps, much to the disappointment of the capacity crowd.
If that was not enough, Gayle went through another dangerman David Miller's defence to see South Africa in a spot of bother at 47 for five.
De Kock and Wiese then held the innings together with a crucial 40-run stand for the sixth wicket to take South Africa forward.
In search of big shots, Wiese then skied a slower delivery from Bravo to West Indies skipper Darren Sammy at mid-off.
For West Indies, Gayle (2/17), Bravo (2/200 and Russell (2/28) picked up two wickets apiece.