South Africa were given a scare by Sri Lanka in a 19-run victory in a rain interrupted 10 overs match.
Sri Lanka were well-placed for a win at 59/0 at the halfway point of their chase but collapsed, ending on 107 for six with newcomer Lungi Ngidi (2-0-13-2) the main destroyer.
Earlier, David Miller (40 off 18 balls) and skipper Behardien (31 off 18 balls) added 51 runs for the fourth wicket off 27 balls to push the hosts to 126 off 10 overs.
South Africa 126 for 5 (Miller 40) beat Sri Lanka 107 for 6 (Dickwella 43, Ngidi 2-12) by runs.
Matches Tagged in ClipDex2017 RSA v SRL 1st T20
Series Tagged in ClipDex2017 RSA v SRL T20 series
Players Tagged in ClipDexPrasanna, Seekkuge Dickwella, D P D Niroshan Mosehle, Mangaliso Mathews, Angelo D Smuts, Jon-Jon Trevor De Bruyn, Theunis B de Silva, Dhananjaya M Ngidi, Lungisani Miller, David Andrew Phehlukwayo, Andile Behardien, Farhaan De Silva, Thakshila
Grounds Tagged in ClipDexSupersport Park
Categories Tagged in ClipDexLimited Overs (ODI & T20)