| Final Sunday 20.03 14:20 | time | | L | React. | | 1. United States |  USA | 3:26.38 | WL | 5 | 0.183 | | Natasha Hastings, Quanera Hayes, Courtney Okolo, Ashley Spencer | | 2. Poland |  POL | 3:31.15 | SB | 2 | 0.178 | | Ewelina Ptak, Malgorzata Holub, Magdalena Gorzkowska, Justyna Swiety | | 3. Romania |  ROU | 3:31.51 | SB | 6 | 0.220 | | Adelina Pastor, Elena Mirela Lavric, Andrea Miklos, Bianca Razor | | 4. Nigeria |  NGR | 3:34.03 | SB | 1 | 0.270 | | Margaret Bamgbose, Regina George, Tameka James, Ada Benjamin | | 5. Ukraine |  UKR | 3:40.42 | SB | 4 | 0.268 | | Anastasiia Lebid, Olha Bibik, Anastasiia Bryzgina, Dzhois Koba | | -. Jamaica |  JAM | DNF | | 3 | 0.165 | | Patricia Hall, Chrisann Gordon, Anneisha McLaughlin-Whilby, Stephenie Ann McPherson |
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| Intermediate times | | 400m: United States 51.89s | | 800m: United States 1:42.91 | | 1200m: United States 2:33.62 |
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