At the Supersport Park, in skipper AB de Villiers' company, he scored his third successive ton in the series and took South Africa to 301 for 8, before incessant rain didn't allow India to reply.
"It was a tough wicket to bat on. We had to fight for runs and the scoring was tough after we lost quick wickets. So probably it was one of the harder hundreds in these last three," said the man-of-the-series.
For sure, since Kock scored 342 runs, the most ever in a three-match ODI series. In doing so, he emulated Herschelle Gibbs and AB de Villiers' record of scoring three consecutive ODI hundreds.
India's Ishant Sharma put it down to luck, which the youngster, who considers former Australian opener-cum-keeper Adam Gilchrist as his role model, was quick to laugh off.
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"Of course, Ishant is right, I was lucky," he joked.
Even so, despite his purple patch, de Kock will not be part of the Test side and as such it comes as a relief to the Indian team.
"Anybody will like to be part of the South African Test team. But everything happens for the good. So I will go back to playing four-day cricket and hopefully get some runs there," he signed off.