Sent into bat first, South Africa scored 176 runs for 7 in 50 overs, featuring a half-century by Trisha Chetty.
Veteran wicket-keeper batsman Trisha Chetty scored the team highest 63 runs off 86 balls hitting 5 fours, Robyn Searle scored 35 off 43 deliveries hitting 7 fours, Tazmin Brits scored 23 off 45 hitting 4 fours while captain Nadine de Klerk added 17 off 33 with one four and a six.
Fahima Khatun picked up 3 for 32 runs, spinner Khadija Tul Kubra bagged 2 for 34 while Nahida Akter and Shaila Sharmin took one wicket each for Bangladesh.
South Africa got the first blow while Fahima Khatun sent back opener Tazmin Brits for total of 64 runs. Fahima also picked up two crucial wickets -- Trisha Chetty and captain Nadine de Klerk.
Bangladeshi spinner Khadija Tul Kubra bagged wickets of opener Robyn Searle and Anne Bosch, Nahida Akter removed Nondumiso Shangase while Shaila Sharmin dismissed Lara Goodall .
In reply, Bangladesh emerging women’s team, riding on an unbeaten 104-run 3rd wicket stand between Sharmin Akhter and captain Nigar Sultana, easily reached their target scoring 179 runs for 1 in 44.4 overs.
Sharmin smashed 83 off 137 balls hitting 10 fours and was adjudged player of the match while Nigar scored 48 off 84 balls hitting 7 fours.
Visiting Bangladesh team lost the lone wicket of opener Murshida Khatun, who scored 31 off 49 balls hitting 6 fours, before she fell victim to a run out.
Earlier, Bangladesh women’s team started their series conceding a 47-run defeat to South Africa in first unofficial one-dayer on July 23 and later beat hosts South Africa women’s team by 4-wicket in 2nd unofficial one-dayer on July 25 to bounced back in the series.
Touring Bangladesh Women will next play a three-match T20 series against South African Women’s on July 31, Aug 1 and 4.