| 2021 (new event) | ||||
| (Tokyo, July 31) | ||||
| 1. | Poland | 3:09.87 | OR | |
| (Karol Zalewski 45.1, Natalia Kaczmarek 49.9, Justyna Święty-Ersetic 50.47, Kajetan Duszyński 44.38); | ||||
| 2. | Dominican Republic | 3:10.21 | ||
| (Lidio Feliz 45.2, Marileidy Paulino 48.7, Anabel Medina 51.34, Alexander Ogando 44.90) | ||||
| 3. | United States | 3:10.22 | ||
| (Trevor Stewart 44.9, Kendall Ellis 50.2, Kaylin Whitney 50.59, Vernon Norwood 44.43) | ||||
| 4. | Netherlands | 3:10.36 | ||
| (Liemarvin Bonevacia 44.8, Lieke Klaver 50.7, Femke Bol 49.74, Ramsey Angela 45.07) | ||||
| 5. | Belgium | 3:11.51 | ||
| (Dylan Borlée 45.5, Imke Vervaet 51.0, Camille Laus 50.68, Kevin Borlée 44.21) | ||||
| 6. | Great Britain | 3:12.07 | ||
| (Niclas Baker 46.2, Nicole Yeargin 50.6, Emily Diamond 50.36, Cameron Chalmers 44.79) | ||||
| 7. | Jamaica | 3:14.95 | ||
| (Sean Bailey 46.0, Stacey-Ann Williams 51.1, Tovea Jenkins 52.24, Karayme Bartley 45.51) | ||||
| 8. | Ireland | 3:15.04 | ||
| (Cillin Greene 45.5, Phil Healy 51.8, Sophie Becker 52.36, Christopher O’Donnell 45.28) | ||||
| dq. | Germany | |||
| (Marvin Schlegel 46.2, Corinna Schwab 69.6, Nadine Gonska, Manuel Sanders) | ||||