The award had been planned to be given out in March but the organisers delayed it citing the coronavirus restriction activated by the government.
The winner is chosen by the organisers and the Sports Journalists Association (SJAK). Polack had also won it in October and November 2019.
Anthony Kimani of AFC Leopards lost the award to Polack as a loss to Tusker denied him a maiden Coach of the Month award. Twahir Muhiddin, who was in charge of Bandari then, came third.