2018 FINA World Swimming Championships (25 m) – Men's 4 × 50 metre freestyle relay
# 2018 FINA World Swimming Championships (25 m) – Men's 4 × 50 metre freestyle relay

The men's 4 × 50 metre freestyle relay competition of the 2018 FINA World Swimming Championships (25 m) was held on 14 December 2018.

## Records

Prior to the competition, the existing world and championship records were as follows.

| | Name | Nation | Time | Location | Date |
| - | - | - | - | - | - |
| World record | Vladimir Morozov (21.01) Evgeny Sedov (20.37) Oleg Tikhobaev (20.59) Sergei Fesikov (20.63) | Russia | 1:22.60 | Doha, Qatar | 6 December 2014 |
| Championship record | Vladimir Morozov (21.01) Evgeny Sedov (20.37) Oleg Tikhobaev (20.59) Sergei Fesikov (20.63) | Russia | 1:22.60 | Doha, Qatar | 6 December 2014 |

The following records were established during the competition:

| Date | Event | Name | Nation | Time | Record |
| - | - | - | - | - | - |
| 14 December | Final | Caeleb Dressel (20.43) Ryan Held (20.25) Jack Conger (20.59) Michael Chadwick (20.53) | United States | 1:21.80 | WR, CR |

## Results

### Heats

The heats were started at 09:32.

| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| - | - | - | - | - | - | - |
| 1 | 1 | 4 | Italy | Santo Condorelli (21.32) Andrea Vergani (20.80) Lorenzo Zazzeri (20.99) Alessandro Miressi (20.99) | 1:24.10 | Q |
| 2 | 2 | 4 | Russia | Kliment Kolesnikov (21.55) Ivan Kuzmenko (20.87) Evgeny Sedov (20.80) Sergey Fesikov (20.96) | 1:24.18 | Q |
| 3 | 1 | 2 | United States | Michael Andrew (21.33) Michael Jensen (21.23) Kyle DeCoursey (21.31) Jack Conger (20.79) | 1:24.66 | Q |
| 4 | 2 | 5 | Australia | Grayson Bell (21.65) Cameron McEvoy (21.06) Cameron Jones (20.93) Louis Townsend (21.24) | 1:24.88 | Q |
| 5 | 1 | 6 | South Africa | Brad Tandy (21.16) Chad le Clos (20.96) Douglas Erasmus (21.44) Ryan Coetzee (21.54) | 1:25.10 | Q, AF |
| 6 | 2 | 2 | Belarus | Hryhory Pekarski (21.74) Yauhen Tsurkin (21.09) Viktar Staselovich (21.51) Artsiom Machekin (21.15) | 1:25.49 | Q |
| 7 | 1 | 5 | Japan | Kosuke Matsui (21.41) Katsumi Nakamura (21.00) Kaiya Seki (22.01) Takeshi Kawamoto (21.40) | 1:25.82 | Q |
| 8 | 1 | 2 | Germany | Marius Kusch (21.69) Christian Diener (21.66) Damian Wierling (21.32) Ramon Klenz (21.55) | 1:26.22 | Q |
| 9 | 2 | 6 | Turkey | Hüseyin Emre Sakçı (21.52) Iskender Baslakov (21.74) Yalım Acımış (21.74) Kemal Arda Gürdal (21.25) | 1:26.25 | NR |
| 10 | 2 | 5 | China | Yu Hexin (22.11) Cao Jiwen (21.88) He Junyi (21.70) Hou Yujie (21.59) | 1:27.28 | |
| 11 | 2 | 7 | Romania | George Rațiu (22.50) Cătălin Ungur (22.17) Daniel Martin (21.70) Thierry Bollin (21.59) | 1:27.96 | |
| 12 | 2 | 1 | Switzerland | Ivo Staub (22.23) Nils Liess (21.86) Manuel Leuthard (22.06) Thierry Bollin (22.13) | 1:28.28 | |
| 13 | 1 | 3 | Chinese Taipei | Wu Chun-feng (22.02) NR Chuang Mu-lun (22.13) Huang Yen-hsin (22.33) Lin Chien-liang (22.00) | 1:28.48 | |
| | 1 | 7 | Brazil | | DNS | |
| | 2 | 7 | Portugal | | DNS | |

### Final

The final was held at 19:00.

| Rank | Lane | Nation | Swimmers | Time | Notes |
| - | - | - | - | - | - |
| | 3 | United States | Caeleb Dressel (20.43) AM Ryan Held (20.25) Jack Conger (20.59) Michael Chadwick (20.53) | 1:21.80 | WR |
| | 5 | Russia | Vladimir Morozov (20.39) Evgeny Sedov (20.82) Ivan Kuzmenko (20.64) Evgeny Rylov (20.37) | 1:22.22 | NR |
| | 4 | Italy | Santo Condorelli (21.27) Andrea Vergani (20.44) Lorenzo Zazzeri (20.57) Alessandro Miressi (20.62) | 1:22.90 | NR |
| 4 | 6 | Australia | Cameron McEvoy (21.09) Cameron Jones (20.75) Grayson Bell (20.95) Louis Townsend (21.13) | 1:23.92 | OC |
| 5 | 2 | South Africa | Brad Tandy (21.22) Chad le Clos (20.31) Douglas Erasmus (21.29) Ryan Coetzee (21.32) | 1:24.14 | AF |
| 6 | 1 | Japan | Katsumi Nakamura (21.16) AS Kosuke Matsui (21.01) Takeshi Kawamoto (21.06) Kaiya Seki (21.46) | 1:24.69 | |
| 7 | 8 | Germany | Marius Kusch (21.47) Damian Wierling (21.07) Ramon Klenz (21.51) Christian Diener (21.49) | 1:25.54 | |
| | 7 | Belarus | Hryhory Pekarski (21.79) Yauhen Tsurkin (21.17) Viktar Staselovich Artsiom Machekin | DSQ | |
