Colombo:Openers Quinton de Kock and Reeza Hendricks scored unbeaten half-centuries to lead South Africa to a 3-0 Twenty20 series sweep over Sri Lanka with a 10-wicket win in the third and final match on Tuesday.
Sri Lanka had scored 120 for eight in 20 overs after winning the toss and batting first. Opener Kusal Perera top-scored for the home team with 39 while Chamika Karunaratne's unbeaten 24 at No. 9 gave Sri Lanka a modest total.
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Spinner Bjorn Fortuin had the best bowling figures with 2-21 while paceman Kagiso Rabada had 2-23.
South Africa was in complete control in its chase, denying Sri Lanka any chance of a breakthrough and reaching its target with 32 deliveries to spare.