Nicholas Pooran's 31-ball 76 went in vain.
The two bottom-tier teams clash in match 38 with slender hopes to qualification.
Who will be the top performer for the Sylhet Sixers and Rajshahi Kings?
Both teams would be going into the match with a must-win scenario.
The Riders came up with another solid all-round performance.
AB de Villiers is in great form for the Riders.
The Kings need a victory desperately to climb the ladder.
With four of the best T20 batsmen in their eleven, the Riders look to be an unstoppable force.
Fizz was adjudged the Player of the Match and rightly so.
Chittagong lead BPL 2019 with 12 points and Rajshahi sit at number 5 on the grid with 8 points.