Van Niekirk (67 not out) and Adams (42) help Invincibles to eight-wicket win
Burns (45) top scores in Phoenix's 129-9 after home side win toss
Farrant takes 3-23 in her 20 balls, Van Niekirk 2-16
Thanks Callum.
The Birmingham Phoenix are in a huddle, led by skipper Amy Jones. Here come the batters...
(For fans of Test cricket, England are making a royal mess of the first day of their series against India.)
That's me done for this game.
Amy Lofthouse will take you through the chase.
The main thing that shocked me so far in The Hundred has been the number of wickets that sides are losing.
A lot of pre-tournament chat was about teams picking specialist bowlers/keepers, and it didn't matter about their batting ability, because they weren't expecting to bat too often.
But we've seen sides consistently lose wickets throughout though, and the lower order have often been called upon.
There were little contributions throughout that innings, but the main one came from Australia's Erin Burns, who made 45 off 28 balls.
Before this game she'd only made 22 runs across the tournament.
This was a quite outrageous shot from Gwen Davies.
That is a decent total from Birmingham Phoenix in the end. They lost regular wickets, but the par score in the women's competition has been 127 so they have managed to edge just past that.
I mentioned this a short while ago but Invincibles failed to chase 110 on Saturday and 113 on Monday. This is not going to be a formality.
Who do you think will win? Thumbs up for Phoenix, thumbs down for Invincibles.
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Erin Burns has got Phoenix to a fantastic total. Little cameos has ticked it along and I think 130 is going to be a tough chase.
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A well-run two to finish. That takes them above the par in the tournament so far.
Invincibles will need 130 to win.
Two more singles.
What will the final ball bring?
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
That is nowhere near out.
One of the worse reviews I've seen in a while.
It hits her outside the line and is therefore going a mile down.
Oh. Oval Invincibles decided to send that last ball upstairs for an lbw shout.
Going down surely?
A wide and the single from the first two balls.
Tash Farrant will bowl the final set of five balls.
You wouldn't bet against her picking up a fourth wicket either.
Four!
Short and wide from Mady Villiers and Kirstie Gordon finds the gap in the covers.
These are big runs.
Image source, BBC Sport/ECB
Alison Mitchell
Commentator on BBC Radio 5 Live Sports Extra
There's still time for Phoenix to be bowled out...
Franklin c Capsey b Villiers 7 (Phoenix 117-9)
Phoenix are in real danger of being bowled out. This is now the third time that Phoenix have lost nine wickets in an innings.
Phoebe Franklin looks to give herself some room but she skims a drive straight to Alice Capsey at cover.
Image source, BBC Sport