South Africa, securing a 2-0 lead before the final match, relaxed ahead of Monday’s game.
Bavuma had to leave the field due to injury when the score was 68-0, and afterward, Rickleton added 40 more runs to put the team ahead at 78-1.
With contributions from Rassie van der Dussen, Kyle Verreynne, and Stubbs, South Africa finished their innings at a total of 343-4.
Ireland needed a solid start, but they fell behind at 7-2 due to the early dismissals of Andrew Balbirnie and Paul Stirling.
They managed to recover slightly, but Lizaad Williams’ two wickets in two balls almost sealed South Africa’s victory.
The South African national team, starting to rise despite their recent decline, aims to maintain their form. After their matches against Ireland, the Proteas will face Bangladesh and India.