Emily Windsor helped guide the Vipers home with a 53-ball 57 having come in at 101-4Rachael Heyhoe Flint Trophy final, County Ground, NorthamptonThe Blaze 200-8 (48 overs): Beaumont 76, Munro 33; Smith 3-30, Dean 2-27, Adams 2-43Southern Vipers 203-5 (40.2 overs): Windsor 57*, Elwiss 50, Adams 39, Kemp 32*; Groves 3-39, K Bryce 2-48Match scorecardSouthern Vipers beat The Blaze in a low-scoring final to lift the Rachael Heyhoe Flint Trophy for the third time at Northampton.The five-wicket victory meant the Vipers also completed the women’s domestic cup double having also beaten the East Midlands side in the Charlotte Edwards Cup final.After a rain-affected start, Vipers skipper Georgia Adams put Blaze into bat and they slipped to 6-2.Tammy Beaumont hit a watchful 76 from 104 balls, Sophie Munro hit 33 and skipper Kirstie Gordon a late cameo of 21 as The Blaze recovered to post 200-8 from their 48 overs.Kathryn Bryce (2-48) reduced Vipers to 4-2 before Josie Groves (3-39) removed Georgia Elwiss (50) and Georgia Adams (39) in quick succession to leave Vipers 109-5.But Emily Windsor struck nine fours in a 53-ball unbeaten 57 and shared an unbroken 94-run sixth-wicket stand with Freya Kemp (32 not out) to take Vipers to their target with 46 balls to spare.The victory also marked a third piece of silverware this season for Vipers head coach Charlotte Edwards who also steered Southern Brave to victory in The Hundred.More to follow.