Charlie Dean took two wickets and shared a match-winning partnership with Ella McCaughan as Southern Vipers won their maiden Charlotte Edwards Trophy title.
Georgia Adams' unbeaten 47 ensured Southern Vipers maintained a 100 per cent Charlotte Edwards Cup record, eliminating Northern Diamonds with a six-wicket win.
Northern Diamonds kept their Charlotte Edwards Cup hopes on course by holding their nerve to defeat Lightning by five runs at Seat Unique Riverside.
Tammy Beaumont's half-century and Piepa Cleary's three-for underpinned Lightning's first Charlotte Edwards Cup victory as they beat Thunder by five wickets.
Issy Wong starred with bat and ball as Central Sparks beat holders South East Stars by 34 runs in the Charlotte Edwards Cup.
Lauren Winfield-Hill produced a stunning 96 from just 51 balls to inspire Northern Diamonds to victory over Lightning in their opening match of the Charlotte Edwards Cup.