That's all from us today, but you can catch up on the best of that game by reading Jack Skelton's match report.
Thanks for joining!
Post update
So, where does that leave things for the rest of the men's table?
Birmingham Phoenix are already through, but with a game to play - so if they win that, they'll go straight through to the final and Brave would be in the eliminator against the Trent Rockets.
Post update
Then the Southern Brave stuttered early on in their chase, with their dangerman Quinton de Kock unable to make a significant contribution.
Post update
Oval Invincibles never really got going with the bat - Will Jacks and Alex Blake did most of the damage.
Post update
Alex Davies receives the Match Hero award for his 40 not out from 29 balls.
Post update
Wow. What a game!
A brilliant - and definitely entertaining - partnership between Alex Davies and Colin De Grandhomme - who scored 40 each, has steered the Southern Brave to victory and through to the next stage of the tournament.
The Invincibles, though, are out.
Post update
Aatif Nawaz
Commentator on BBC Radio 5 Live Sports Extra
That's the game! Southern Brave go through!
SOUTHERN BRAVE WIN
Alex Davies wins it with a six!!!!
Post update
Michael Carberry
Ex-England batter on BBC Radio 5 Live Sports Extra
Squeaky bum time...
Brave 129-4
6 more runs needed
Another dot ball ...
Brave 129-4
6 more runs needed
Dot ball! And a run out chance is missed!
Brave 129-4
6 more runs needed
Another single. Poor Colin De Grandhomme looks as if he has absolutely nothing left.
Alex Davies looks fresh as a daisy.
Brave 128-4
7 more runs needed
Two runs from the free hit.
Post update
Michael Carberry
Ex-England batter on BBC Radio 5 Live Sports Extra
A debacle.
Brave 124-4
11 more runs needed
What just happened?!
So it's a no ball for height. De Grandhomme gets it away for a single. Then there's a wild throw in from the fielder and they run three more.
Live Reporting
Ffion Wynne and Amy Lofthouse
All times stated are UK
BBC SportCopyright: BBC Sport 
Latest PostGoodbye
That's all from us today, but you can catch up on the best of that game by reading Jack Skelton's match report.
Thanks for joining!
Post update
So, where does that leave things for the rest of the men's table?
Birmingham Phoenix are already through, but with a game to play - so if they win that, they'll go straight through to the final and Brave would be in the eliminator against the Trent Rockets.
Post update
Then the Southern Brave stuttered early on in their chase, with their dangerman Quinton de Kock unable to make a significant contribution.
Post update
Oval Invincibles never really got going with the bat - Will Jacks and Alex Blake did most of the damage.
Post update
Alex Davies receives the Match Hero award for his 40 not out from 29 balls.
Post update
Wow. What a game!
A brilliant - and definitely entertaining - partnership between Alex Davies and Colin De Grandhomme - who scored 40 each, has steered the Southern Brave to victory and through to the next stage of the tournament.
The Invincibles, though, are out.
Post update
Aatif Nawaz
Commentator on BBC Radio 5 Live Sports Extra
That's the game! Southern Brave go through!
SOUTHERN BRAVE WIN
Alex Davies wins it with a six!!!!
Post update
Michael Carberry
Ex-England batter on BBC Radio 5 Live Sports Extra
Squeaky bum time...
Brave 129-4
6 more runs needed
Another dot ball ...
Brave 129-4
6 more runs needed
Dot ball! And a run out chance is missed!
Brave 129-4
6 more runs needed
Another single. Poor Colin De Grandhomme looks as if he has absolutely nothing left.
Alex Davies looks fresh as a daisy.
Brave 128-4
7 more runs needed
Two runs from the free hit.
Post update
Michael Carberry
Ex-England batter on BBC Radio 5 Live Sports Extra
A debacle.
Brave 124-4
11 more runs needed
What just happened?!
So it's a no ball for height. De Grandhomme gets it away for a single. Then there's a wild throw in from the fielder and they run three more.
Next ball is a free hit.
I can't even ...
Post update
Aatif Nawaz
Commentator on BBC Radio 5 Live Sports Extra
This isn't a foregone conclusion...
Brave 120-4
15 from 10.
About six Invincibles players gather for a chat.
Brave 119-4
16 more runs needed
Oooh, a dot ball. Well bowled, Saqib Mahmood.
Post update
Aatif Nawaz
Commentator on BBC Radio 5 Live Sports Extra
This pair have saved the game for Southern Brave.
Brave 119-4
16 more runs needed
One more.