The 30-year-old achieved his 19th ODI hundred, taking 90 balls and hitting eight fours and five sixes. Remarkably, he had previously scored a century in South Africa’s opening victory over Sri Lanka.
He also became the second South African batter to have scored consecutive centuries in World Cup. AB de Villiers achieved it in the 2011 World Cup.
It’s worth noting that de Kock, who has announced his retirement from international cricket at the end of this tournament, found himself on familiar turf at the Ekana Stadium, a ground where he plays for the Lucknow Super Giants in the IPL.
He was eventually dismissed for 109, bowled by off-spinner Glenn Maxwell while trying to reverse pull, in the 35th over.
Earlier, Australia captain Pat Cummins won the toss and chose to bowl first.
Australia made two changes to the team which lost by six wickets to India in their first match with Marcus Stoinis and wicketkeeper Josh Inglis replacing Cameron Green and Alex Carey respectively.
South Africa defeated Sri Lanka by 102 runs in their opening game where they racked up a World Cup record total of 428.
They have dropped fast bowler Gerald Coetzee in favour of leg-spinner Tabraiz Shamsi.