The Men's 4 × 100 metre freestyle relay competition of the 2021 FINA World Swimming Championships (25 m) was held on 16 December 2021.
Records Prior to the competition, the existing world and championship records were as follows.
Results Heats The heats were started at 12:29.Heats results
Rank Heat Lane Nation Swimmers Time Notes 1 1 4 Russian Swimming FederationVladimir Morozov (47.07)Aleksandr Shchegolev (46.01)Andrey Minakov (45.94)Daniil Markov (47.00) 3:06.02 Q 2 2 4 Shaine Casas (46.93)Tom Shields (47.07)Hunter Tapp (46.61)Ryan Held (46.17) 3:06.78 Q 3 2 5 Alessandro Miressi (46.76)Lorenzo Zazzeri (46.79)Leonardo Deplano (46.43)Manuel Frigo (47.02) 3:07.00 Q 4 1 6 Stan Pijnenburg (46.65)Thom de Boer (46.28)Nyls Korstanje (47.03)Jesse Puts (47.20) 3:07.16 Q, NR 5 1 3 Gabriel Santos (46.91)Fernando Scheffer (47.03)Kaique Alves (47.13)Breno Correia (47.33) 3:08.40 Q 6 2 3 Matthew Richards (47.49)Edward Mildred (47.92)Tom Dean (47.02)Ben Proud (46.82) 3:09.25 Q, NR 7 2 2 Yang Jintong (48.77)Pan Zhanle (46.37)Hong Jinquan (47.39)Wang Changhao (46.88) 3:09.41 Q, NR 8 2 6 Roman Mityukov (48.06)Antonio Djakovic (47.18)Thomas Hallock (48.66)Robin Yeboah (48.83) 3:12.73 Q, NR 9 1 5 Jack McMillan (47.82)Calum Bain (47.67)Brendan Hyland (48.88)Jordan Sloan (48.57) 3:12.94 10 1 1 Cheuk Ming Ho (48.76)Ian Ho (47.81)Ng Yan Kin (50.01)Ng Cheuk Yin (48.86) 3:15.44 NR 11 1 7 Won Young-jun (48.87)Moon Seung-woo (49.77)Kim Woo-min (48.78)Lee Ho-joon (49.06) 3:16.48 NR 12 2 7 Baturalp Ünlü (48.45)Efe Turan (49.60)Metin Aydın (49.10)Berke Saka (49.95) 3:17.10 13 2 1 Mohamed Samy (49.98)Marwan Elkamash (51.11)Abdelrahman Sameh (48.37)Youssef Ramadan (49.03) 3:18.49 NR 14 2 8 Waleed Abdulrazzaq (49.49)Ali Al-Zamil (53.09)Sauod Al-Shamroukh (52.66)Faisal Al-Tannak (53.30) 3:28.54 15 1 8 Nguyễn Hữu Kim Sơn (51.87)Trần Hưng Nguyên (50.94)Hồ Nguyễn Duy Khoa (52.76)Phạm Thanh Bảo (57.90) 3:33.47 1 2 DNS
Final The final was held at 19:56.Final results Rank Lane Nation Swimmers Time Notes 4 Russian Swimming Federation Kliment Kolesnikov (46.44)Andrey Minakov (45.61)Vladislav Grinev (45.87)Aleksandr Shchegolev (45.53) 3:03.45 3 Alessandro Miressi (46.12)Thomas Ceccon (45.71)Leonardo Deplano (45.98)Lorenzo Zazzeri (45.80) 3:03.61 NR 5 Ryan Held (45.75)Hunter Tapp (46.78)Shaine Casas (46.50)Zach Apple (46.39) 3:05.42 4 6 Stan Pijnenburg (46.64)Thom de Boer (46.60)Nyls Korstanje (46.82)Jesse Puts (46.04) 3:06.10 NR 5 1 Pan Zhanle (47.43)Wang Changhao (47.32)Hong Jinquan (46.91)Yang Jintong (48.45) 3:10.11 6 7 Tom Dean (47.35)Ben Proud (47.60)Edward Mildred (47.57)Matthew Richards (47.67) 3:10.19 7 8 Roman Mityukov (47.67)Antonio Djakovic (47.21)Thomas Hallock (48.25)Robin Yeboah (48.40) 3:11.53 NR 2 Gabriel Santos (47.21)Fernando SchefferKaique AlvesBreno Correia DSQ
References