Captain Sophie Devine ends unbeaten on 75
SL make 127-7 thanks to captain Atapattu (41 from 30)
New Zealand fight back in middle overs
West Indies beat Thailand by seven wickets earlier
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Matt Crawford: I've really enjoyed following Japan under 19s and now I find myself up at 7am at the weekend to watch the Thai women's team. Surely ICC need to realise its not all about the top six nations, these emerging countries' passion is what grows the game.
WI 27-3
It's doing too much, missing the leg stump. Disappointment for Thailand. What relief for the Windies. How big might that moment be?
Snehal Pradhan
Ex-India seamer on BBC Test Match Special
I think this is out. Nicky and I both had our fingers raised. The only thing that could save her is if the ball is doing too much.
WI 27-4
You're kidding. Shemaine Campbelle lbw.
Surely the review won't save her?
Snehal Pradhan
Ex-India seamer on BBC Test Match Special
An excellent throw, against Dottin who is one of the fastest runners in T20 cricket. She swept in, picked it up, released it immediately and the wicketkeeper did the rest.
Dottin run out 2 (WI 27-3)
Unbelievable. Deandra Dottin is gone, sold down the river by a shocking call from a very nervous Stafanie Taylor. This game is on.
WI 27-2
Taylor calls Dottin through. Throw comes in from point. Bails off. Very, very close....
Chanida Sutthiruang wobbles down some big in-duckers. pinning Stafanie Taylor on the pads. It's all a bit tentative from the Windies, as if they aren't quite sure what to make of the Thai bowling. Run out chance...
Snehal Pradhan
Ex-India seamer on BBC Test Match Special
Lateh is bowling a mixture of left-arm medium pace and leg-cutters, it's not traditional left-arm spin, even if it looks like it.
Deandra Dottin arrives, so West Indies two most explosive players are at the crease. If Thailand remove these two quickly, you never know....
Snehal Pradhan
Ex-India seamer on BBC Test Match Special
One of the reasons they're celebrating so hard is that it's Lateh's first T20 international wicket - and what an occasion to claim it, getting one of the best batters in the world and the hero of the 2016 tournament.
Matthews b Lateh 16 (WI 24-2)
Bowled her! Thailand have another. Hayley Matthews plays all across Soraya Lateh, with the ball ending up hitting middle stump via inside edge and thigh. Two in two overs for Thailand...
Snehal Pradhan
Ex-India seamer on BBC Test Match Special
When I spoke to the Thailand coach in Pune, he told me they wanted to be the best fielding side in the tournament. Not the best in the bottom three - the best in the tournament. He focuses on open play rather than closed net sessions.
Target 79
Stafanie Taylor is the new batter, by the way. The skipper won't want to hang around in knocking these off.
Nicky Shaw
Ex-England all-rounder on BBC Test Match Special
The Thai girls are not particularly tall - anything over their heads will probably go for four.
WI 19-1
Almost another! A big drive from Hayley Matthews, very nearly held by the diving cover fielder. It would have been a worldie.
Amy Lofthouse
BBC Sport at the Waca
That was an absolutely terrific throw from Naruemol Chaiwai. A clean pick up, a super fast arm and the bowler was aware enough to get herself out of the way as the ball came firing back in. That might be the only bit of Leann Kirby's innings that makes the highlights reel...
Nicky Shaw
Ex-England all-rounder on BBC Test Match Special
That was amazing! There was lack of awareness of Kirby to get off strike and unwillingness to run - Matthews was going, whatever happened. Thailand celebrated like they'd won the World Cup - let's see if they can sneak a couple of wickets out.
Kirby run out 3 (WI 19-1)
Direct hit!
What a bit of fielding by Naruemol Chaiwai! Hayley Matthews wants a single, but Lee-Ann Kirby is slow to set off. When she does, she's treading water, and Chaiwai's throw from short third man cannons into the non-striker's stumps. Thailand's first wicket in a major global competition. Great celebrations, too.
Nicky Shaw
Ex-England all-rounder on BBC Test Match Special
What's wrong with all these bowlers! Review everything!