Perth Scorchers have been stunned by the Melbourne Renegades in what looms as one of the upsets of the WBBL season.

Beaten in both of their opening games and wooden-spooners last year, the Renegades bowled superbly to have heavyweights Perth all out for 140 at CitiPower Centre in Melbourne on Saturday.

Renegades captain Sophie Molineux was particularly brilliant with 4-17 from her four overs, bowling Amy Jones and Chloe Piparo in the middle before helping clean up the tail.

All 10 of the Scorchers’ wickets fell to spin, with Player of the Match Hayley Matthews, Alice Capsey and Georgia Wareham taking two each as the pressure continually told.

Beth Mooney hit 36 up top for the Scorchers, but after she fell trying to scoop Capsey it was only Alana King (26 off 15) that truly got going.

The Renegades then made light work of the chase, with Courtney Webb hitting Chloe Ainsworth over the long-on rope in the first over and taking 12 off the next from spinner Lilly Mills.

In her 79th WBBL match, Webb finished with her highest score of 61, dominating a 102-run opening stand with Matthews that helped the Renegades to victory with 14 balls to spare.

Perth are now 1-1 after their first two games ahead of back-to-back home matches at the WACA Ground.

The Scorchers will host Brisbane Heat on Tuesday before a re-match with the Renegades on Thursday, then head on a gruelling five-game road trip over east.