# 2022 FINA World Swimming Championships (25 m) – Men's 100 metre breaststroke

The Men's 100 metre breaststroke competition of the 2022 FINA World Swimming Championships (25 m) was held on 14 and 15 December 2022.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Ilya Shymanovich (BLR) | 55.28 | Eindhoven, Netherlands | 26 November 2021 |
| Competition record | Ilya Shymanovich (BLR) | 55.70 | Abu Dhabi, United Arab Emirates | 17 December 2021 |

## Results
### Heats

The heats were started on 14 December at 12:50.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 7 | 4 | Nicolò Martinenghi | Italy | 56.60 | Q |
| 2 | 6 | 4 | Yuya Hinomoto | Japan | 56.62 | Q |
| 3 | 7 | 5 | Qin Haiyang | China | 56.66 | Q |
| 4 | 7 | 2 | Adam Peaty | Great Britain | 56.81 | Q |
| 5 | 8 | 4 | Nic Fink | United States | 57.02 | Q |
| 6 | 6 | 3 | Ippei Watanabe | Japan | 57.11 | Q |
| 7 | 7 | 7 | Antoine Viquerat | France | 57.18 | Q |
| 8 | 7 | 1 | Lucas Matzerath | Germany | 57.22 | Q |
| 9 | 8 | 3 | Simone Cerasuolo | Italy | 57.24 | Q |
| 10 | 8 | 2 | Caspar Corbeau | Netherlands | 57.53 | Q |
| 11 | 7 | 3 | Bernhard Reitshammer | Austria | 57.66 | Q |
| 12 | 6 | 1 | Carl Aitkaci | France | 57.68 | Q |
| 13 | 8 | 5 | Emre Sakçı | Turkey | 57.70 | Q |
| 14 | 7 | 8 | Joshua Yong | Australia | 57.77 | Q |
| 15 | 7 | 6 | Caio Pumputis | Brazil | 57.78 | Q |
| 16 | 8 | 8 | Matěj Zábojník | Czech Republic | 57.87 | Q |
| 17 | 6 | 5 | Sun Jiajun | China | 57.92 | |
| 18 | 5 | 4 | Chao Man Hou | Macau | 58.01 | NR |
| 18 | 6 | 7 | Anton McKee | Iceland | 58.01 | |
| 20 | 6 | 2 | Erik Persson | Sweden | 58.05 | |
| 21 | 4 | 7 | Josh Gilbert | New Zealand | 58.06 | |
| 22 | 5 | 1 | Maximillian Ang | Singapore | 58.10 | NR |
| 23 | 8 | 6 | Sam Williamson | Australia | 58.13 | |
| 24 | 5 | 2 | Denis Petrashov | Kyrgyzstan | 58.21 | NR |
| 25 | 8 | 1 | Michael Andrew | United States | 58.22 | |
| 26 | 6 | 6 | Berkay Ömer Öğretir | Turkey | 58.27 | |
| 27 | 6 | 8 | Peter John Stevens | Slovenia | 58.31 | |
| 28 | 4 | 3 | James Dergousoff | Canada | 58.50 | |
| 29 | 3 | 1 | Tonislav Sabev | Bulgaria | 58.58 | |
| 30 | 8 | 7 | Andrius Šidlauskas | Lithuania | 58.60 | |
| 31 | 4 | 1 | Jorge Murillo | Colombia | 58.83 | NR |
| 32 | 4 | 5 | Ádám Halás | Slovakia | 59.12 | |
| 33 | 5 | 3 | Christoffer Haarsaker | Norway | 59.13 | |
| 34 | 4 | 4 | Julio Horrego | Honduras | 59.22 | |
| 35 | 4 | 2 | Volodymyr Lisovets | Ukraine | 59.55 | |
| 36 | 4 | 6 | Youssef El-Kamash | Egypt | 59.61 | |
| 36 | 4 | 8 | Adam Chillingworth | Hong Kong | 59.61 | |
| 38 | 5 | 6 | Josué Domínguez | Dominican Republic | 59.73 | |
| 39 | 5 | 8 | Jadon Wuilliez | Netherlands Antilles | 1:00.00 | |
| 40 | 2 | 3 | Cai Bing-rong | Chinese Taipei | 1:00.16 | |
| 41 | 2 | 6 | Rashed Al-Tarmoom | Kuwait | 1:00.22 | NR |
| 42 | 3 | 7 | Ronan Wantenaar | Namibia | 1:00.35 | NR |
| 43 | 3 | 6 | Kian Keylock | South Africa | 1:00.60 | |
| 44 | 3 | 5 | Jonathan Cook | Philippines | 1:00.87 | |
| 45 | 3 | 8 | Adrian Robinson | Botswana | 1:00.90 | NR |
| 46 | 3 | 4 | Daniils Bobrovs | Latvia | 1:01.02 | |
| 47 | 3 | 2 | Alexandre Grand'Pierre | Haiti | 1:01.07 | NR |
| 48 | 2 | 4 | Liam O'Hara | Zimbabwe | 1:01.31 | |
| 49 | 3 | 3 | Kiran Jasinghe | Sri Lanka | 1:01.60 | |
| 50 | 2 | 5 | Jonathan Raharvel | Madagascar | 1:01.84 | |
| 51 | 2 | 1 | Brandon Schuster | Samoa | 1:01.96 | |
| 52 | 2 | 2 | Tasi Limtiaco | Federated States of Micronesia | 1:01.98 | |
| 53 | 1 | 1 | Sébastien Kouma | Mali | 1:04.39 | |
| 54 | 2 | 8 | Omar Al-Hammadi | United Arab Emirates | 1:04.57 | |
| 55 | 2 | 7 | Muhammad Isa Ahmad | Brunei | 1:05.15 | |
| 56 | 1 | 3 | Ahmed Al-Hasani | Iraq | 1:06.77 | |
| 57 | 1 | 4 | Bikash Kumal | Nepal | 1:07.50 | |
| 58 | 1 | 2 | Mohammed Al-Maher | Saudi Arabia | 1:08.84 | |
| 59 | 1 | 5 | Carel Van Melvin Irakoze | Burundi | 1:10.11 | |
| | 5 | 5 | Olli Kokko | Finland | Disqualified | Disqualified |
| | 5 | 7 | Carles Coll | Spain | Did not start | Did not start |

### Semifinals

The semifinals were started on 14 December at 20:57.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Nicolò Martinenghi | Italy | 56.01 | Q |
| 2 | 2 | 3 | Nic Fink | United States | 56.25 | Q |
| 3 | 2 | 5 | Qin Haiyang | China | 56.38 | Q |
| 4 | 1 | 5 | Adam Peaty | Great Britain | 56.42 | Q |
| 5 | 2 | 2 | Simone Cerasuolo | Italy | 56.71 | Q |
| 6 | 1 | 4 | Yuya Hinomoto | Japan | 56.77 | Q |
| 7 | 1 | 6 | Lucas Matzerath | Germany | 57.04 | Q |
| 8 | 2 | 6 | Antoine Viquerat | France | 57.07 | Q |
| 9 | 1 | 3 | Ippei Watanabe | Japan | 57.27 | |
| 10 | 1 | 1 | Joshua Yong | Australia | 57.34 | |
| 11 | 2 | 8 | Caio Pumputis | Brazil | 57.59 | |
| 12 | 2 | 1 | Emre Sakçı | Turkey | 57.65 | |
| 13 | 1 | 2 | Caspar Corbeau | Netherlands | 57.73 | |
| 14 | 1 | 8 | Matěj Zábojník | Czech Republic | 57.94 | |
| 15 | 2 | 7 | Bernhard Reitshammer | Austria | 57.98 | |
| 16 | 1 | 7 | Carl Aitkaci | France | 58.12 | |

### Final

The final was held on 15 December at 20:44.
| Rank | Lane | Name | Nationality | Time |
| | 5 | Nic Fink | United States | 55.88 |
| | 4 | Nicolò Martinenghi | Italy | 56.07 |
| | 6 | Adam Peaty | Great Britain | 56.25 |
| 4 | 3 | Qin Haiyang | China | 56.33 |
| 5 | 8 | Antoine Viquerat | France | 56.98 |
| 6 | 2 | Simone Cerasuolo | Italy | 56.99 |
| 7 | 1 | Lucas Matzerath | Germany | 57.12 |
| 8 | 7 | Yuya Hinomoto | Japan | 57.29 |