The Supernovas overhauled the target off the last delivery of the run chase, reaching 125 for 6 from 20 overs.
Jemimah Rodrigues says that playing the on-drive shot boosts her confidence the most.
Rodrigues struck 10 fours and a six from 48 balls in her aggressive innings after the Supernovas were sent into bat in their must-win match.
After their five-wicket win over Supernovas in the tournament-opener on Tuesday, a victory over Velocity would have sealed Trailblazers' place in Saturday's summit clash.
Four matches will be played among the three teams at the Sawai Mansingh Stadium with Supernovas taking on Trailblazers in the tournament opener.
While WV Raman will coach the Supernovas, Biju George and Mamta Maben have been named as the coaches of Trailblazers and Velocity teams respectively.