[1] In August 2018, he was awarded a senior contract by Cricket South Africa ahead of the 2018–19 domestic season.
[4] Prior to his T20 debut, he was part of South Africa's squad for the 2018 Under-19 Cricket World Cup.
[5] He made his List A debut for Western Province in the 2018–19 CSA Provincial One-Day Challenge on 10 February 2019.
[8] In April 2021, Ntini was named in the South Africa Emerging Men's squad for their six-match tour of Namibia.
[9] Later the same month, he was named in KwaZulu-Natal's squad, ahead of the 2021–22 cricket season in South Africa.