Jess Jonassen's blitzy 63 not out off 29 balls extended the Brisbane Heat's lead at the top of the WBBL table with a six-run win against the Melbourne Renegades at the Junction Oval. The Renegades gave the visitors a scare as they needed 21 from 12 balls, and later 15 off the last over, but they lost three wickets in the last four balls, including two run-outs, and fell short to remain on ten points. The Heat got a stable start from opener Maddy Green's 32 off 31 before Jonassen walked out at the halfway mark at 57 for 2. Wickets fell around her but Jonassen propelled the run rate from under six to over 7.5 per over by smashing six fours and three sixes. The Heat collected 42 off the last three overs, with five fours and two sixes from Jonassen alone to post a strong 5 for 153. The Renegades got a promising start with Danni Wyatt's 40 off 18 but once she holed out to deep midwicket off Amelia Kerr in the eighth over, the hosts found it tough to stay on top of the chase, with only two more batters able to score at more than run a ball. Jonassen finished with 1 for 27 from her four overs to be named the Player of the Match.