# 2024 World Aquatics Swimming Championships (25 m) – Men's 100 metre breaststroke

The Men's 100 metre breaststroke competition of the 2024 World Aquatics Swimming Championships (25 m) was held on 11 and 12 December 2024.

## 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 |
The following record was established during the competition:
| Date | Event | Name | Nationality | Time | Record |
| 12 December | Final | Qin Haiyang | China | 55.47 | CR |

## Results
### Heats

The heats were started on 11 December at 10:13.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 6 | 4 | Kirill Prigoda | Neutral Athletes B | 55.82 | Q, NR |
| 2 | 8 | 4 | Qin Haiyang | China | 56.39 | Q |
| 3 | 8 | 5 | Taku Taniguchi | Japan | 56.59 | Q |
| 4 | 5 | 5 | Denis Petrashov | Kyrgyzstan | 56.65 | Q, NR |
| 4 | 7 | 4 | Ilya Shymanovich | Neutral Athletes A | 56.65 | Q |
| 6 | 8 | 3 | Caspar Corbeau | Netherlands | 56.71 | Q |
| 7 | 7 | 6 | Ludovico Viberti | Italy | 56.86 | Q |
| 8 | 6 | 5 | Aleksandr Zhigalov | Neutral Athletes B | 56.90 | Q |
| 9 | 7 | 3 | Joshua Yong | Australia | 56.99 | Q |
| 10 | 6 | 6 | Carles Coll | Spain | 57.07 | Q, NR |
| 11 | 5 | 6 | Jan Kałusowski | Poland | 57.23 | Q, NR |
| 11 | 7 | 5 | Simone Cerasuolo | Italy | 57.23 | Q |
| 13 | 7 | 2 | Yamato Fukasawa | Japan | 57.26 | Q |
| 14 | 8 | 6 | Choi Dong-yeol | South Korea | 57.29 | Q, NR |
| 15 | 8 | 2 | Bernhard Reitshammer | Austria | 57.34 | Q |
| 16 | 8 | 0 | Chris Smith | South Africa | 57.38 | Q |
| 17 | 6 | 3 | Emre Sakçı | Turkey | 57.39 | R |
| 18 | 8 | 9 | Melvin Imoudu | Germany | 57.44 | R |
| 19 | 5 | 3 | Michael Andrew | United States | 57.57 | |
| 20 | 6 | 7 | Caio Pumputis | Brazil | 57.60 | |
| 21 | 6 | 0 | Lucas Matzerath | Germany | 57.61 | |
| 22 | 7 | 7 | Koen de Groot | Netherlands | 57.65 | |
| 23 | 8 | 8 | Daniel Kertes | Sweden | 57.71 | |
| 24 | 8 | 1 | Archie Goodburn | Great Britain | 57.81 | |
| 25 | 6 | 9 | Andrius Šidlauskas | Lithuania | 57.88 | |
| 26 | 5 | 9 | Finlay Knox | Canada | 57.90 | |
| 27 | 6 | 2 | Joshua Collett | Australia | 57.94 | |
| 28 | 7 | 1 | Volodymyr Lisovets | Ukraine | 58.13 | |
| 29 | 8 | 7 | Berkay Ömer Öğretir | Turkey | 58.36 | |
| 30 | 4 | 2 | Ronan Wantenaar | Namibia | 58.59 | NR |
| 30 | 7 | 0 | Adam Mak | Hong Kong | 58.59 | |
| 32 | 7 | 8 | Eoin Corby | Ireland | 58.63 | |
| 33 | 4 | 3 | Kristian Pitshugin | Israel | 58.67 | |
| 34 | 6 | 1 | Juan García | Colombia | 58.73 | |
| 35 | 4 | 0 | Jørgen Scheie Bråthen | Norway | 58.98 | |
| 36 | 6 | 8 | Snorri Dagur Einarsson | Iceland | 59.01 | |
| 37 | 4 | 5 | Maksim Manolov | Bulgaria | 59.20 | |
| 38 | 3 | 4 | Vicente Villanueva | Chile | 59.22 | NR |
| 39 | 4 | 1 | Louis Droupy | Switzerland | 59.33 | |
| 40 | 4 | 7 | Arkadios Aspougalis | Greece | 59.46 | |
| 41 | 5 | 7 | Ralf Roose | Estonia | 59.52 | |
| 42 | 5 | 2 | Dávid Horváth | Hungary | 59.61 | |
| 43 | 7 | 9 | Chao Man Hou | Macau | 59.74 | |
| 44 | 4 | 8 | Joao Carneiro | Luxembourg | 59.82 | |
| 45 | 3 | 3 | Amro Al-Wir | Jordan | 1:00.03 | NR |
| 46 | 5 | 0 | Panayiotis Panaretos | Cyprus | 1:00.14 | |
| 47 | 1 | 4 | Samy Boutouil | Morocco | 1:00.21 | NR |
| 48 | 5 | 1 | Davin Lindholm | Finland | 1:00.23 | |
| 49 | 3 | 8 | Steven Insixiengmay | Laos | 1:00.36 | |
| 50 | 3 | 7 | Emmanuel Gadson | Bahamas | 1:00.42 | |
| 51 | 3 | 5 | Adrian Robinson | Botswana | 1:00.68 | NR |
| 52 | 1 | 5 | Mohammed Alotaibi | Saudi Arabia | 1:00.76 | NR |
| 53 | 3 | 2 | Josué Domínguez | Dominican Republic | 1:00.89 | |
| 54 | 5 | 4 | Constantin Malachi | Moldova | 1:01.12 | |
| 55 | 3 | 1 | Jacob Story | Cook Islands | 1:02.11 | NR |
| 56 | 4 | 6 | Daniils Bobrovs | Latvia | 1:02.14 | |
| 57 | 2 | 4 | Zach Moyo | Zambia | 1:02.15 | NR |
| 58 | 2 | 5 | Raul Antadillas | Panama | 1:02.23 | |
| 59 | 2 | 3 | Haniel Kudwoli | Kenya | 1:02.49 | |
| 60 | 4 | 9 | Ashot Chakhoyan | Armenia | 1:02.56 | |
| 61 | 2 | 6 | Saud Ghali | Bahrain | 1:02.93 | NR |
| 62 | 3 | 0 | Luis Weekes | Barbados | 1:02.96 | |
| 63 | 2 | 7 | Hussaine Taha | Oman | 1:03.97 | |
| 64 | 2 | 9 | Mohamed Abujiba | Palestine | 1:04.73 | NR |
| 65 | 3 | 9 | Ganzorigtyn Sugar | Mongolia | 1:05.02 | |
| 66 | 1 | 6 | Kim Won-ju | North Korea | 1:05.07 | |
| 67 | 1 | 3 | Anas Ganedi | Libya | 1:05.48 | |
| 68 | 2 | 2 | Selim Nazarov | Turkmenistan | 1:05.67 | |
| 69 | 2 | 1 | Kouki Cerezo Watanabe | Northern Mariana Islands | 1:06.66 | |
| 70 | 2 | 8 | Fode Amara Camara | Guinea | 1:12.95 | |
| 71 | 2 | 0 | Yves Munyu Kupiata | Democratic Republic of the Congo | 1:20.09 | |
| | 3 | 6 | Giacomo Casadei | San Marino | Disqualified | Disqualified |
| | 4 | 4 | Patrick Pelegrina | Andorra | Disqualified | Disqualified |
| | 5 | 8 | Arsen Kozhakhmetov | Kazakhstan | Disqualified | Disqualified |
| | 1 | 2 | Alemekezeke Chinyamu | Malawi | Did not start | Did not start |

### Semifinals

The semifinals were started on 11 December at 18:24.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 5 | Kirill Prigoda | Neutral Athletes B | 56.02 | Q |
| 2 | 1 | 4 | Qin Haiyang | China | 56.04 | Q |
| 3 | 2 | 3 | Ilya Shymanovich | Neutral Athletes A | 56.21 | Q |
| 4 | 2 | 2 | Taku Taniguchi | Japan | 56.40 | Q |
| 5 | 1 | 2 | Aleksandr Zhigalov | Neutral Athletes B | 56.50 | Q |
| 6 | 1 | 4 | Denis Petrashov | Kyrgyzstan | 56.52 | Q, NR |
| 7 | 1 | 3 | Caspar Corbeau | Netherlands | 56.60 | Q |
| 7 | 2 | 6 | Ludovico Viberti | Italy | 56.60 | Q |
| 9 | 2 | 1 | Joshua Yong | Australia | 56.52 | R, OC |
| 10 | 1 | 7 | Carles Coll | Spain | 56.67 | R, NR |
| 11 | 1 | 7 | Simone Cerasuolo | Italy | 56.94 | |
| 12 | 2 | 6 | Jan Kałusowski | Poland | 56.98 | NR |
| 13 | 2 | 5 | Yamato Fukasawa | Japan | 57.07 | |
| 14 | 1 | 8 | Chris Smith | South Africa | 57.11 | |
| 15 | 2 | 8 | Bernhard Reitshammer | Austria | 57.28 | |
| 16 | 1 | 1 | Choi Dong-yeol | South Korea | 57.30 | |

### Final

The final was started on 12 December at 18:38.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Qin Haiyang | China | 55.47 | CR, AS |
| | 4 | Kirill Prigoda | Neutral Athletes B | 55.49 | NR |
| | 3 | Ilya Shymanovich | Neutral Athletes A | 55.60 | |
| 4 | 7 | Denis Petrashov | Kyrgyzstan | 55.91 | NR |
| 5 | 6 | Taku Taniguchi | Japan | 56.32 | |
| 6 | 2 | Aleksandr Zhigalov | Neutral Athletes B | 56.35 | |
| 7 | 1 | Caspar Corbeau | Netherlands | 56.46 | |
| 7 | 8 | Ludovico Viberti | Italy | 56.46 | |