An unbeaten 130 from David Miller helped South Africa reach 262-8 in their fourth one-day international against the West Indies at Port Elizabeth.
The Proteas have already won the five-game series after taking an unassailable 3-0 lead last week.
South Africa lost two wickets inside the first six overs as Rilee Rossouw (four) and Faf du Plessis (four) were dismissed by Sheldon Cottrell and Jason Holder respectively.
Despite his recent heroics, AB de Villiers contributed an underwhelming 19 before he was bowled by Andre Russell, but it was Miller's mammoth knock in the middle order that pushed the home side on.
JP Duminy also made a contribution with the bat as he hit 43 before being caught and bowled by Darren Sammy, while Farhaan Behardien and Wayne Parnell scored 12 each as part of the tail's efforts.
