South Africa Women 127 for 5 (Bezuidenhout 34, I Joyce 3-16) beat Ireland Women 71 by 56 runs
South Africa's bowling attack proved too good for Ireland in the first of their three T20s played in Solihull. Although they did not have it all their own way with the bat, Ireland then slumped to 71 all out.
Shabnim Ismail and captain Dane van Niekerk produced miserly four-over spells, conceding just 10 and eight runs respectively. Ireland's last eight wickets fell for 39.
It had been a tricky start for South Africa, who completed their series against England on Sunday, as they slipped to 28 for 3 in the seventh over.
The innings was given some bulk by a stand of 65 between Marizanne Kapp and Bernadine Bezuidenhout then late striking from Chloe Tryon, who hit 28 off 12 balls, provided them further breathing pace.
Isobel Joyce was the pick of Ireland's bowlers with 3 for 16 and then top scored in the reply.