The tournament started earlier today, with New Zealand v India in Guyana. India won the toss and elected to bat first.
They slipped to 40-3 before captain Harmanpreet Kaur and Jemimah Rodrigues shared 134 for the fourth wicket. Kaur, in particular, was mighty impressive hitting 103 off just 51 balls.
They eventually posted 194-5 to set New Zealand an extremely daunting target.
The White Ferns started positively, putting on 50 for the first wicket. But, after that wickets fell at regular intervals as Amy Satterthwaite's side fell 34 runs short.
You can watch highlights of Kaur's massive six hitting below.