Postpublished at 7 overs
Vipers 57-3 (target 110)
You cannot be short to Maia Bouchier and Sarah Glenn pays the price as she is pulled away for four.
A single follows as Bouchier advances to 27 from 17 balls.
Southern Vipers beat Central Sparks by six wickets at Northampton
They receive the trophy named after their coach, ex-England skipper Charlotte Edwards
Central Sparks made 109-8 from their 20 overs, England's Amy Jones makes 27
Maia Bouchier top scored with 32 as Vipers replied with 110-4 in 15.5 overs
Sparks (105-8) earlier beat South East Stars (104-8) by two wickets in play-off
Paul Grunill and Adam Lanigan
Vipers 57-3 (target 110)
You cannot be short to Maia Bouchier and Sarah Glenn pays the price as she is pulled away for four.
A single follows as Bouchier advances to 27 from 17 balls.
Kirstie Gordon
Lightning and England spin bowler
That is what they needed, if not potentially the one they wanted in Maia Bouchier, who is the set batter.
Elwiss lbw Glenn 3 (Vipers 51-3 - target 110)
That's a bonus for Sparks as Georgia Elwiss tries to sweep and is trapped in front by Sarah Glenn's leg-spin. Ella McCaughan is the new batter.
Kirstie Gordon
Lightning and England spin bowler
The game is nicely poised but it's wickets needed for the Sparks.
Vipers 50-2 (target 110)
There have been too many four balls from Sparks and there's another as Maia Bouchier square cuts Emily Arlott.
Bouchier chips the final delivery to square leg for one as the Vipers total reaches 50. She is 21 not out from 14 balls and looking in no trouble whatsoever at the moment.
Vipers 43-2 (target 110)
Issy Wong continues for her third over.
She's cranking it up towards 70mph. but when she drops short, Maia Bouchier pulls it away over the in-field for four.
A single ends the over - one left in the powerplay.
Vipers 36-2 (target 110)
Emily Arlott gifts Southern Vipers an extra run before Georgia Elwiss takes a single from the final ball of the over.
Central Sparks have the key wicket of Danni Wyatt - but they need to keep working their way through this Vipers order.
Clive Eakin
BBC CWR Sport
That might just give the Sparks a spark.
Wyatt c Potts b Arlott 20 (Vipers 35-2 - target 110)
No single spell for Grace Potts this time as Emily Arlott takes up the attack for Sparks.
She tries the Issy Wong approach by testing out Danni Wyatt with a short one, but the England batter spins like an ice dancer to swat it away for four.
IT's her final scoring stroke as she tries to pull the next one and is well taken by Grace Potts at mid-on, moving to her right.
Clive Eakin
BBC CWR Sport
The Sparks have not been able to restrict the Vipers in the way they did the Stars in the first game.
It needs a couple of quick wickets to get them going and stop them thinking about that dropped catch.
The Vipers will be pretty happy, despite losing that wicket in the first over.
Vipers 28-1 (target 110)
Issy Wong's line is wrong as she tries another short ball and Maia Bouchier nonchalantly helps it on its way for four.
You certainly can't fault the fire in her belly, though, and Danni Wyatt had to squat down underneath another bouncer before dabbing a single.
An attempted yorker to Bouchier results in a leg-side wide, but the next just misses both the inside edge and the off stump.
Clive Eakin
BBC CWR Sport
That should have been out.
Although the ball was travelling, that was a relatively straightforward chance at this level.
Vipers 19-1 (target 110)
Grace Potts gives Danni Wyatt too much width with her opening delivery and she dabs it away square, easy as you like, for four runs.
Wyatt pulls later in the over, it's straight to mid-on, but the catch isn't taken by Sarah Glenn and to make things even worse, the ball goes through her hands and away for another boundary.
The final ball is cut away by Wyatt for four more - and that is a very bad over for Sparks.
Clive Eakin
BBC CWR Sport
That looked a good catch from here.
I've always been of the view that you should go with the fielders.
Adams c E Jones b Wong 0 (Vipers 2-1 - target 110)
Georgia Adams takes a look at a couple from Issy Wong with a first slip in place for the Sparks.
A wasteful leg-side wide gets the scoreboard moving and Wong is then called for a no-ball after banging in a bouncer.
The final delivery takes the leading edge and Eve Jones dives forward at mid-off to take the catch. Vipers aren't certain that carried but Adams has to go. Just the start Sparks wanted.
Vipers 0-0 (target 110)
England's Danni Wyatt and skipper Georgia Adams are the Southern Vipers openers. Central Sparks can't afford to let them get going.
Issy Wong will bowl the first over after impressing in the play-off win against South East Stars earlier today.
Just a quick reminder that England Women start a Test match against South Africa at Taunton on 27 June.
BBC Sport will have coverage of that, and as far as the men are concerned, there is a new round of County Championship matches starting tomorrow.
Join us from about 10.40am for full coverage of the eight games.
So, we have a very similar scenario to the earlier play-off game when Central Sparks successfully chased a target of 105 against South East Stars - but only just.
This time, they'll be doing the bowling in the second innings and they are going to need some early wickets to sow a few doubts in the minds of the Southern Vipers team.
If Vipers avoid early damage, you have to think that this should be fairly straightforward, given the strength of their batting.
Sparks 109-8 v Vipers
Kirstie Gordon
Lightning and England spin bowler
The Sparks top order not getting runs again has really cost them.
The wicket looks like a belter but there must be something in it that is making it a little bit two-paced.
Vipers would absolutely have taken this (target) at the start.
Sparks 109-8 v Vipers
End of the innings as Davina Perrin thumps Georgia Elwiss' last ball to the boundary.
A useful cameo of 14 from 10 balls for her.
The Sparks innings is over. Southern Vipers require 110 runs to win the Charlotte Edwards Cup.