Teenager Jemimah Rodrigues struck an unbeaten 77 to help Supernovas beat Velocity by 12 runs and enter the final of the Women's T20 Challenge here Thursday. The two sides will again lock horns in the summit clash on Saturday as the third team, Trailblazers, who also secured the same two points as Velocity and Supernova, finished third on the basis of net run rate.

Sent into bat in their must-win match, the Supernovas scored 142 for 3, thanks to 18-year-old Rodrigues' 48-ball 77 not out and then restricted Velocity to 130 for 3 to win the final round-robin league match of the tournament.

After Thursday's result, all the three teams ended on two points each after one win by each side but Velocity and Supernovas ended with plus 0.25 and plus 0.045 net runs rates respectively while the Trailblazers secured minus 0.305.

Trailblazers had beaten Supernovas by 2 runs in the opening match on Monday while Velocity had defeated Trailblazers by three wickets on Wednesday.

Chasing 143 for a win, Velocity lost early wickets with the openers Hayley Matthews (11) and Shafali Verma (2) being dismissed cheaply to be reduced to 21 for 2 in the fourth over.

One-down Englishwoman Danielle Wyatt threatened to take the game away from Supernovas with a 33-ball 43 but she was out in the 12th over after a 56-run stand with captain Mithali Raj who remained 40 not out off 42 balls.

Raj shared 53 runs with Veda Krishnamurthy (30 not out) for the unconquered fourth wicket but the duo could not chase down the target. The total was, however, enough for Velocity to make it to the final.

By the 19th over, the duo knew that their team would be through to the final despite a loss.

For Supernovas, leg-spinner Poonam Yadav was the most impressive bowler with one wicket at the expense of 13 runs from her four overs.

Earlier, Rodrigues struck 10 fours and a six from 48 balls in her aggressive unbeaten innings after the Supernovas were sent in to bat in their must-win match. She first had a 55-run stand with Sri Lankan Chamari Atapattu (31) for the second wicket before stitching another partnership of 50 runs with Sophie Devine (9) of New Zealand for the third wicket.

Captain Harmanpreet Kaur also remained not out on 1 from five deliveries.