Use the audio icon above to listen to BBC Radio 5 Sports Extra commentary
Australia win by 19 runs to win sixth Women's T20 World Cup
Success is their third title in a row
South Africa were playing in their first final for either their men's or women's side
Beth Mooney made unbeaten 74 in Australia's 156-6
Ffion Wynne
BBC Sport in Cape Town
Image source, Getty ImagesSune Luus made that catch look a lot easier than it was - a stunning effort.
The crowd literally went silent as the ball was in the air, heaping the pressure on her, and it did go a long way in the air.
Another wicket at a key moment, just as the Aussies were kicking on.
Still no Meg Lanning...
Daniel Norcross
BBC Test Match Special
This is a statement of intent to send Grace Harris out.
Image source, Getty ImagesGrace Harris is the new batter and gets off the mark with a single.
Alex Hartley
Former England bowler on BBC Test Match Special
It is a wonderful catch. Tryon is running to the captain with her arms pumping.
The Australians still look relaxed in the dugout.
Daniel Norcross
BBC Test Match Special
Image source, Getty ImagesTyron is ecstatic. It is a brilliant piece of captaincy from Sune Luus to bring Tryon on.
Gardner c Luus b Tryon 29 (Aus 82-2)
That's Ashleigh Gardner gone.
Left-arm spinner Chloe Tryon comes to bowl her first over.
Gardner comes down the wicket, hits it toward long-off where South Africa skipper Sune Luus makes a difficult catch seem very simple.
Image source, Getty ImagesMarizanne Kapp is back into the attack.
There's two singles to start and then an attempted ramp shot from Beth Mooney but it didn't go anywhere. She is starting to look frustrated.
Kapp comes round the wicket for her final ball and it's been fumbled by Sinalo Jafta behind the stumps. It is called a wide and Australia get through for a single.
Alex Hartley
Former England bowler on BBC Test Match Special
Image source, Getty ImagesIt has been good from both teams. It has been swinging both ways.
But Australia are probably on top. They have the capability to accelerate in the last six or seven overs.
Thanks Joe!
It's been a good start from South Africa but they need to get a few more wickets as Australia still have some big hitters to come.
Image source, Getty ImagesRight then, drinks just as Australia are gaining some momentum.
Um-E-Aymen Babar will take you through until the halfway stage of this intriguing T20 World Cup final.
And we finish with a dot as Gardner swings and misses.
Not bad from either side as we reach the halfway stage of Australia's innings.
Australia are well on top now as Mooney joins the party, driving Ayabonga Khaka for four more.
Alex Hartley
Former England bowler on BBC Test Match Special
Image source, Getty ImagesThis is where Australia are dangerous - two set batters and the freedom to be aggressive.
Chance to finish the over!
De Klerk gets one to bounce high off the surface which Gardner almost top-edges to the keeper but the ball lands harmlessly short.
Alex Hartley
Former England bowler on BBC Test Match Special
The first one was a good shot but that wasn't a good delivery. It was a freebie for Gardner.
And another six! This one over the covers. Gardner is in the groove.
Alex Hartley
Former England bowler on BBC Test Match Special
Image source, Getty ImagesGardner held the pose. She is ticking very nicely. This is why she came in at number three.
Henry Moeran
BBC Test Match Special commentator
It's a brilliant shot. Almost effortless from Gardner.
Shot!
Ash Gardner gets the first maximum of the final, coming down the ground and launching one over the top.
Ouch! Ash Gardner smashes the ball against the legs of her partner Beth Mooney at the non-striker's end.
Saved four runs that.