Kevan James
BBC Radio Solent commentator

"It's a new strip which looks like it's been prepared for next week's County Championship match and the ball has come on nicely."

Charlie Dean in for her fifth over.

Tammy Beaumont scampers through for a single and makes it home despite a direct hit.

Four straight dots build the frustration for Sophie Munro who does stroke a single from the last.

The lowest score by the team batting first in a Heyhoe Flint final is 183 all out by Northern Diamonds in 2021.

Even though the game has been cut to 48 overs a side, The Blaze look to be on course to surpass that.

The highest total batting first is 231 all out by Southern Vipers in the inaugural 2020 final.

Sophie Munro tries to thrash Georgia Elwiss to the rope, but can only manage a single.

Three more singles and a leg bye from Elwiss. The Vipers will take that.

13 overs to go.

Tammy Beaumont is doing the business for the Blaze, having been dropped twice earlier in her innings.

But we hope everyone has noticed the immaculate glovework of Vipers keeper Rhianna Southby.

Image source, PA Media

England white ball spinner Charlie Dean is back into the attack.

Sophie Munro finds the change tricky and Dean almost sneaks one through her defences before Munro jams her bat down just in time.

Tidy over. Just the Tammy Beaumont single from it.

A Sophie Munro square cut off Georgia Elwiss beats the fielder in the race to the boundary.

Elwiss recovers well to get over the over with four dots.

Both batters are well set now. Will they kick on this time or will Vipers make another timely breakthrough?

Tammy Beaumont sweeps Ava Lee down behind deep square leg, but finds the fielder and takes a single.

The England batter then comes down the wicket and takes Lee for a one-bounce four to the deep midwicket boundary.

The over costs nine and Beaumont moves onto 65.

Georgia Elwiss lets out a cry as her third ball smacks into the pads of Sophie Munro.

It was going down leg and Munro takes a couple.

But it's sandwiched either side between a string of dots.

Another economical over for Vipers.

Ava Lee is into the seventh over of her spell and continues to toss the ball up and give the batters no pace to work with.

Just two singles this time to take her figures to 0-25.

When will the Blaze need to accelerate? They have 18 overs left to decide.

They can't afford to lose more wickets just yet, but they also can't leave their dash too late.

The Blaze continue to deal in singles as Mary Taylor bowls a tight line in her seventh over.

Just four from it. The run rate is just a tad above four an over.

Unbelievable scenes at Northampton as the sun cuts its way through the murk.

Ava Lee has been impressive this morning and serves up four dots before Sophie Munro follows a two with a single.

Rita Green
BBC Radio Berkshire sport reporter

"She's really in now and will be looking to get up to three figures for her side."

Image source, PA Media

The Vipers have had a superb morning, but have also leaked plenty of extras.

Two more wides, this time from Mary Taylor, takes extras tally to 16.

Tammy Beaumont then cuts the medium pacer's final ball for a super four.

That's her sixth boundary and The Blaze will need plenty more you feel.

for Tammy Beaumontpublished at 26 overs

26 overs

Blaze 106-4 v Vipers

Tammy Beaumont drives Ava Lee through the covers for four.

She then nudges a single to bring up a 78-ball fifty.

A vital knock for Blaze hopes of silverware.

up for The Blazepublished at 25 overs

25 overs

Blaze 100-4 v Vipers

Georgia Adams plumps for medium pace after the drinks break as Mary Taylor returns to the attack.

A Tammy Beaumont single brings up three figures in the fifth ball of the 25th over and takes her to 45.

Just four singles from the over.

Ava Lee again and Tammy Beaumont goes on the attack.

She's down the wicket and drives it over the infield for four.

She tries the same approach to the next ball, but this is not so well timed and plonks it just a few yards over the head of Georgia Adams for two.

We're halfway through the Blaze knock and it's time for drinks

Three singles are nudged from the first three balls of Georgia Adams' fifth over.

Two more follow. Vipers will not mind that one bit.

Beaumont has 35 from 65 balls - some way below her normal strike rate.

But she is still there there's hope for the Blaze.

Image source, PA Media

Another impressive over from Ava Lee.

Just two singles from it.