The Sunfoil Sizzler award is worth R15 000.
Birch has been instrumental in the turnaround of his franchise's fortunes in the four-day competition. After being well beaten in their first two matches they drew the next and then achieved back-to-back victories to put themselves back into contention for honours. They are now third on the log and less than two points behind the second-placed The Unlimited Titans.
Other players who came strongly into contention for award were the Titans duo of Roelof van der Merwe and Farhaan Behardien and the Knights duo of Rudi Second and Quinton Friend.
"He has taken 11 wickets in the last two rounds and is joint leading wicket-taker in the competition overall with 21 dismissals. In addition, he has become an invaluable batsman in the lower order."
The South African Cricketers' Association Most Valuable Player index (SACA MVP) is used as the measuring tool in determining the Sunfoil Sizzler of the Month.