[4] Malan was the leading run-scorer in the 2017–18 CSA Provincial One-Day Challenge tournament, with 500 runs in ten matches.
[9] In October 2018, Malan was named in Cape Town Blitz's squad for the first edition of the Mzansi Super League T20 tournament.
In February 2019, Malan was added to South Africa's Twenty20 International (T20I) squad for the series against Pakistan, after Quinton de Kock was ruled out of the fixtures due to an injury.
[17] In January 2020, Malan was named in South Africa's One Day International (ODI) squad for their series against England.
[21] However, in his next match, Malan scored an unbeaten 129 runs, his maiden ODI century, as South Africa beat Australia by six wickets.