It’s the first time a player has netted four times in a match since Bernard Parker did so for Kaizer Chiefs against AmaZulu in 2012.
Polokwane got off to a flying start and found themselves 2-0 up inside the first 17 minutes. Mncwango first headed home a cross from Lebohang Motumi before finishing with a left-footed shot after good work from Jabu Maluleke.
SuperSport were rocked by their opponents’ fast start, but gradually settled into the game and gave themselves a lifeline on 27 minutes when Jeremy Brockie converted Clayton Daniels cross in style.
United made changes early in the second half, first introducing new signing Mark Mayambela for his debut before adding David Mathebula to the mix, but they continued to struggle against a determined Rise and Shine.
Polokwane extended their advantage to 4-1 after two further goals from Mncwango in the 82nd and 88th minutes.
SuperSport could have pulled a further goal back late on when they were awarded a penalty for a foul on Dove Wome, but Polokwane goalkeeper George Chigova denied Brockie from the spot.