The Men's 100 metre breaststroke competition of the 2021 FINA World Swimming Championships (25 m) was held on 16 and 17 December 2021.
Records Prior to the competition, the existing world and championship records were as follows.
The following new records were set during this competition: Date Event Name Nation Time Record 17 December Final Ilya Shymanovich 55.70 CR
Results Heats The heats were started on 16 December at 11:35.Heats results
Rank Heat Lane Name Nationality Time Notes 1 7 5 Arno Kamminga 56.19 Q 2 7 4 Ilya Shymanovich 56.20 Q 3 6 5 Nic Fink 57.02 Q 4 5 5 Fabian Schwingenschlögl 57.07 Q 5 6 4 Nicolò Martinenghi 57.43 Q 6 5 1 Yan Zibei 57.45 Q 7 5 2 Antoine Viquerat 57.53 Q 8 7 7 Michael Andrew 57.54 Q 9 7 3 Danil Semianinov Russian Swimming Federation 57.66 Q 10 6 7 Matěj Zábojník 57.71 Q, NR 11 6 3 Bernhard Reitshammer 57.76 Q 12 6 6 Berkay Ömer Öğretir 57.79 Q 13 5 6 Erik Persson 57.86 Q 14 6 0 Qin Haiyang 57.88 Q 15 7 0 Lucas Matzerath 58.07 Q 16 5 3 Oleg Kostin Russian Swimming Federation 58.11 Q 17 7 2 Christopher Rothbauer 58.12 18 7 6 Tobias Bjerg 58.17 19 7 9 Lyubomir Epitropov 58.27 NR 20 5 7 Olli Kokko 58.31 21 6 2 Andrius Šidlauskas 58.33 22 4 5 Josué Domínguez 58.44 NR 23 7 1 Kristian Pitshugin 58.49 24 2 2 Jadon Wuilliez 58.73 NR 25 4 1 Julio Horrego 58.80 NR 26 4 0 Youssef El-Kamash 59.18 NR 27 6 9 Volodymyr Lisovets 59.25 28 6 8 André Klippenberg Grindheim 59.26 29 5 8 Tomáš Klobučník 59.35 30 3 7 Mariano Lazzerini 59.61 NR 30 4 3 Izaak Bastian 59.61 NR 32 3 5 Phạm Thanh Bảo 33 4 8 Constantin Malachi NR 34 3 2 Adriel Sanes NR 35 4 7 Miguel de Lara 36 3 6 Sebastian Cook 37 3 4 Abobakr Abass NR 38 2 4 Kledi Kadiu 38 3 1 Alexandre Grand'Pierre NR 40 4 9 Ronan Wantenaar 41 3 3 Martin Melconian 42 4 2 Patrick Pelegrina 43 2 5 Arnoldo Herrera 44 3 0 Giacomo Casadei NR 45 3 9 Filipe Gomes 46 2 3 Liam Davis 47 3 8 Jonathan Chung Yee 48 2 6 Muhammad Isa Ahmad NR 49 4 6 Sébastien Kouma 50 1 5 Saud Ghali 51 2 7 Bransly Dirksz 52 2 0 Marc Dansou 53 2 8 Bryson George 54 1 6 Ahmed Al-Hassani 55 2 1 Omar Al-Hatem 56 1 3 Mohamed Hammad 1 4 João Gomes Júnior 2 9 Mohamed Kamara 4 4 Michael Ng 5 0 Cho Sung-jae 5 4 Emre Sakçı 6 1 Denis Petrashov 5 9 Jorge Murillo 7 8 Maximillian Ang
Semifinals The semifinals were started on 16 December at 19:06.Semifinals results Rank Heat Lane Name Nationality Time Notes 1 2 4 Arno Kamminga 56.41 Q 2 2 5 Nic Fink 56.48 Q 3 1 4 Ilya Shymanovich 56.54 Q 4 1 5 Fabian Schwingenschlögl 56.80 Q 5 2 3 Nicolò Martinenghi 56.81 Q 6 1 3 Yan Zibei 57.19 Q 7 1 1 Qin Haiyang 57.23 Q 8 1 7 Berkay Ömer Öğretir 57.34 Q 9 2 2 Danil Semianinov Russian Swimming Federation 57.39 10 2 6 Antoine Viquerat 57.53 11 2 8 Lucas Matzerath 57.57 12 1 2 Matěj Zábojník 57.59 NR 13 2 7 Bernhard Reitshammer 57.68 14 1 6 Michael Andrew 57.83 15 2 1 Erik Persson 57.86 16 1 8 Oleg Kostin Russian Swimming Federation 58.08
Final The final was held on 17 December at 18:28.Final results Rank Lane Name Nationality Time Notes 3 Ilya Shymanovich 55.70 CR 2 Nicolò Martinenghi 55.80 5 Nic Fink 55.87 4 4 Arno Kamminga 56.06 5 6 Fabian Schwingenschlögl 56.29 6 1 Qin Haiyang 56.77 7 7 Yan Zibei 56.86 8 8 Berkay Ömer Öğretir 57.17
References