| Final | time | gap | L | Rem. | React. |  | 1. United States |  _ | 3:27.91 |   | 4 |   | 0.63 |  |  Matt Grevers 52.26s, Kevin Cordes 58.89s, Caeleb Romel Dressel 49.89s, Nathan Adrian 47.00s |  | 2. Great Britain |  _ | 3:28.95 | 1.04 | 1 |   | 0.59 |  |  Chris Walker-Hebborn 54.20s, Adam Peaty 56.91s, James Guy 50.80s, Duncan Scott 47.04s |  | 3. Russia |  _ | 3:29.76 | 1.85 | 8 |   | 0.56 |  |  Evgeny Rylov 52.89s, Kirll Prigoda 58.02s, Aleksandr Popkov 51.16s, Vladimir Morozov 46.69s |  | 4. Japan |  _ | 3:30.19 | 2.28 | 3 | AS | 0.56 |  |  Ryosuke Irie 52.80s, Yasuhiro Koseki 58.54s, Yuki Kobori 51.21s, Shinri Shioura 46.64s |  | 5. Brazil |  _ | 3:31.53 | 3.62 | 2 |   | 0.59 |  |  Guilherme Guido 53.53s, 58.80s, Henrique Martins 51.12s, Marcelo Chierighini 48.08s |  | 6. China |  _ | 3:31.65 | 3.74 | 7 |   | 0.59 |  |  Jiayu Xu 52.89s, Zibei Yan 59.02s, Zhuhao Li 51.45s, Hexin Yu 48.29s |  | 7. Hungary |  _ | 3:32.13 | 4.22 | 6 |   | 0.52 |  |  Richard Bohus 53.99s, Daniel Gyurta 59.45s, Kristof Milak 50.97s, Dominik Kozma 46.72s |  | 8. Belarus |  _ | 3:33.63 | 5.72 | 1 |   | 0.65 |   
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