Although the 23-year-old went wicketless, Rishad was the most economical bowler of the match, conceding 29 runs from four overs as Hobart restricted Sydney to 205 for four.
It was a marked improvement from his previous outing against Perth Scorchers, where he had gone for 35 runs.
Rishad was introduced during the Powerplay and immediately caused problems, nearly dismissing Sam Billings via lbw and later seeing David Warner dropped on one by Tim Ward.
Despite Warner going on to score a blistering 130 off 65 balls*, Rishad kept his composure, conceding just five runs in both his opening and 13th overs.
Warner did take nine runs off Rishad’s final over, but the leg-spinner still finished with impressive figures at an economy rate of 7.25 in a high-scoring match.
In reply, Tim Ward redeemed himself with a match-winning 90 off 49 balls, supported by Mitchell Owen (45 off 18) and Nikhil Chaudhary (29 off 14), as Hobart chased down the target with 13 balls to spare.
The Hurricanes now sit atop the table with 10 points from seven matches, while Sydney Thunder remain bottom with two points from six games.