South Africa secured its third straight victory over Australia on Sunday to win the ODI series 3-2 and enjoy an edge over its rival ahead of the Cricket World Cup next month. Put into bat, South Africa scored 315-9 and dismissed Australia for 193 in 34.1 overs with all-rounder Marco Jansen taking 5-39 to win by 122 runs. Opener Quinton de Kock made 27 in his last ODI at home.