Australia posted 269-7 at Warner Park, St Kitts, after winning the toss. Beth Mooney top‑scored with 65 off 104, while Chris Wareham claimed 3-29, sealing a 90‑run victory over West Indies.
The win puts the Australians 2-0 up in the three‑match ODI series, making the final game a dead rubber. New captain Sophie Molineux sat out due to a back injury.