# Swimming at the 2019 World Aquatics Championships – Men's 100 metre freestyle

The Men's 100 metre freestyle competition at the 2019 World Championships was held on 24 and 25 July 2019.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | César Cielo (BRA) | 46.91 | Rome, Italy | 30 July 2009 |
| Competition record | César Cielo (BRA) | 46.91 | Rome, Italy | 30 July 2009 |

## Results
### Heats

The heats were held on 24 July at 10:15.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 11 | 5 | Caeleb Dressel | United States | 47.32 | Q |
| 2 | 12 | 4 | Vladislav Grinev | Russia | 47.92 | Q |
| 3 | 11 | 4 | Marcelo Chierighini | Brazil | 47.95 | Q |
| 4 | 12 | 7 | Clément Mignon | France | 48.20 | Q |
| 5 | 12 | 3 | Blake Pieroni | United States | 48.31 | Q |
| 6 | 11 | 6 | Nándor Németh | Hungary | 48.36 | Q |
| 7 | 13 | 6 | Breno Correia | Brazil | 48.39 | Q |
| 8 | 13 | 3 | Alessandro Miressi | Italy | 48.57 | Q |
| 9 | 13 | 7 | Clyde Lewis | Australia | 48.63 | Q |
| 10 | 13 | 4 | Kyle Chalmers | Australia | 48.66 | Q |
| 11 | 13 | 2 | Katsumi Nakamura | Japan | 48.68 | Q |
| 11 | 11 | 1 | Shinri Shioura | Japan | 48.68 | Q |
| 13 | 12 | 2 | Mehdy Metella | France | 48.71 | Q |
| 14 | 11 | 3 | He Junyi | China | 48.76 | Q |
| 14 | 11 | 2 | Pieter Timmers | Belgium | 48.76 | Q |
| 16 | 13 | 8 | Dylan Carter | Trinidad and Tobago | 48.77 | Q |
| 17 | 12 | 0 | Yuri Kisil | Canada | 48.79 | |
| 18 | 12 | 1 | Santo Condorelli | Italy | 48.80 | |
| 19 | 11 | 0 | Kacper Majchrzak | Poland | 48.87 | |
| 19 | 11 | 8 | Serhiy Shevtsov | Ukraine | 48.87 | |
| 21 | 11 | 9 | Simonas Bilis | Lithuania | 48.90 | |
| 22 | 13 | 0 | Markus Thormeyer | Canada | 49.05 | |
| 23 | 11 | 7 | Oussama Sahnoune | Algeria | 49.08 | |
| 24 | 13 | 5 | Vladimir Morozov | Russia | 49.09 | |
| 25 | 13 | 1 | Kyle Stolk | Netherlands | 49.20 | |
| 26 | 10 | 8 | Ali Khalafalla | Egypt | 49.22 | |
| 27 | 13 | 9 | Bruno Blašković | Croatia | 49.24 | |
| 28 | 12 | 8 | Marius Kusch | Germany | 49.31 | |
| 29 | 10 | 2 | Yang Jae-hoon | South Korea | 49.37 | |
| 30 | 10 | 0 | Cristian Quintero | Venezuela | 49.40 | |
| 31 | 2 | 7 | Nils Liess | Switzerland | 49.42 | |
| 32 | 12 | 9 | Velimir Stjepanović | Serbia | 49.44 | |
| 32 | 8 | 8 | Daniel Zaitsev | Estonia | 49.44 | NR |
| 34 | 10 | 4 | Khader Baqlah | Jordan | 49.46 | |
| 35 | 10 | 1 | Emir Muratović | Bosnia and Herzegovina | 49.59 | |
| 35 | 10 | 3 | Mikel Schreuders | Aruba | 49.59 | |
| 37 | 10 | 5 | Daniel Hunter | New Zealand | 49.78 | |
| 38 | 9 | 3 | Meiron Cheruti | Israel | 49.82 | |
| 39 | 10 | 6 | Renzo Tjon A Joe | Suriname | 49.85 | |
| 40 | 9 | 6 | Darren Chua | Singapore | 49.89 | |
| 41 | 9 | 5 | Artsiom Machekin | Belarus | 49.90 | |
| 42 | 8 | 7 | Luke Gebbie | Philippines | 49.94 | NR |
| 43 | 9 | 2 | Ben Hockin | Paraguay | 49.95 | |
| 44 | 8 | 5 | Ari-Pekka Liukkonen | Finland | 49.98 | |
| 44 | 9 | 4 | Miguel Nascimento | Portugal | 49.98 | |
| 46 | 7 | 8 | Alexei Sancov | Moldova | 50.05 | |
| 47 | 9 | 2 | Hüseyin Emre Sakçı | Turkey | 50.24 | |
| 48 | 7 | 2 | Artur Barseghyan | Armenia | 50.26 | |
| 49 | 9 | 9 | Vladimír Štefánik | Slovakia | 50.27 | |
| 50 | 10 | 7 | Adil Kaskabay | Kazakhstan | 50.34 | |
| 51 | 8 | 3 | Ian Ho Yentou | Hong Kong | 50.38 | |
| 52 | 8 | 1 | Julien Henx | Luxembourg | 50.43 | |
| 53 | 8 | 0 | Xander Skinner | Namibia | 50.44 | NR |
| 53 | 9 | 1 | Niksa Stojkovski | Norway | 50.44 | |
| 55 | 8 | 6 | Ioannis Georgarakis | Greece | 50.48 | |
| 56 | 7 | 3 | Peter Wetzlar | Zimbabwe | 50.50 | NR |
| 57 | 3 | 8 | Waleed Abdulrazzak | Kuwait | 50.63 | NR |
| 58 | 7 | 5 | Isaac Beitia | Panama | 50.66 | NR |
| 59 | 10 | 9 | Welson Sim | Malaysia | 50.77 | |
| 60 | 8 | 9 | Horus Briseño | Mexico | 50.80 | |
| 61 | 8 | 2 | Curtis Coulter | Ireland | 50.86 | |
| 62 | 7 | 7 | Enzo Martínez | Uruguay | 50.99 | |
| 63 | 6 | 7 | Mokhtar Al-Yamani | Yemen | 51.16 | NR |
| 64 | 7 | 6 | Gabriel Araya | Chile | 51.34 | |
| 65 | 7 | 4 | Andrew Digby | Thailand | 51.47 | |
| 66 | 6 | 4 | Benyamin Gharehhassanloo | Iran | 51.49 | |
| 67 | 9 | 7 | Lin Chien-liang | Chinese Taipei | 51.65 | |
| 67 | 7 | 9 | Jean-Luc Zephir | Saint Lucia | 51.65 | |
| 69 | 6 | 3 | Jesse Washington | Bermuda | 51.67 | |
| 70 | 8 | 4 | Triady Fauzi Sidiq | Indonesia | 51.80 | |
| 71 | 7 | 0 | Jared Fitzgerald | Bahamas | 51.88 | |
| 72 | 6 | 5 | Teimuraz Kobakhidze | Georgia | 51.93 | |
| 73 | 6 | 9 | Noah Mascoll-Gomes | Antigua and Barbuda | 52.12 | |
| 73 | 5 | 0 | Netani Ross | Fiji | 52.12 | |
| 75 | 6 | 6 | Miguel Mena | Nicaragua | 52.20 | |
| 76 | 6 | 8 | Abdoul Niane | Senegal | 52.26 | |
| 77 | 5 | 1 | Audai Hassouna | Libya | 52.34 | |
| 78 | 5 | 2 | Jordan Crooks | Cayman Islands | 52.36 | |
| 79 | 7 | 1 | Omiros Zagkas | Cyprus | 52.44 | |
| 80 | 5 | 3 | Kledi Kadiu | Albania | 52.53 | |
| 80 | 6 | 2 | Jagger Stephens | Guam | 52.53 | |
| 82 | 6 | 1 | Sam Seghers | Papua New Guinea | 52.64 | |
| 83 | 6 | 0 | Danilo Rosafio | Kenya | 52.66 | |
| 84 | 2 | 0 | Nixon Hernández | El Salvador | 52.74 | |
| 85 | 5 | 6 | Delron Felix | Grenada | 53.08 | |
| 86 | 5 | 8 | Syed Tariq | Pakistan | 53.34 | NR |
| 87 | 5 | 4 | Matt Galea | Malta | 53.63 | |
| 88 | 5 | 5 | Issa Al-Adawi | Oman | 53.81 | |
| 89 | 4 | 4 | Atuhaire Ambala | Uganda | 53.89 | NR |
| 90 | 4 | 5 | Noel Keane | Palau | 54.10 | |
| 91 | 1 | 4 | Musa Zhalayev | Turkmenistan | 54.14 | |
| 92 | 3 | 1 | Myagmaryn Delgerkhüü | Mongolia | 54.43 | |
| 93 | 4 | 3 | Andrew Fowler | Guyana | 54.72 | |
| 94 | 1 | 3 | Alex Joachim | Saint Vincent and the Grenadines | 54.96 | |
| 95 | 5 | 9 | Theo Chiabaut | Monaco | 54.99 | |
| 96 | 2 | 3 | Heriniavo Rasolonjatovo | Madagascar | 55.22 | |
| 97 | 2 | 6 | Yellow Yeiyah | Nigeria | 55.23 | |
| 98 | 3 | 7 | Christian Nikles | Brunei | 55.33 | |
| 99 | 5 | 7 | Firas Saidi | Qatar | 55.60 | |
| 100 | 2 | 9 | Daniel Christian | Eritrea | 55.88 | |
| 101 | 4 | 6 | Kaleo Kihleng | Federated States of Micronesia | 55.97 | |
| 102 | 3 | 9 | Alexander Shah | Nepal | 56.28 | |
| 103 | 4 | 2 | Dren Ukimeraj | Kosovo | 56.33 | |
| 104 | 4 | 7 | Billy-Scott Irakose | Burundi | 56.45 | |
| 105 | 2 | 2 | Hem Puch | Cambodia | 56.77 | |
| 106 | 4 | 1 | Finau Ohuafi | Tonga | 57.45 | |
| 107 | 3 | 0 | Lennosuke Suzuki | Northern Mariana Islands | 57.83 | |
| 108 | 4 | 0 | Mubal Ibrahim | Maldives | 58.24 | NR |
| 109 | 3 | 3 | Adama Ouedraogo | Burkina Faso | 58.27 | |
| 110 | 4 | 8 | Alijon Khairulloev | Tajikistan | 58.36 | |
| 111 | 2 | 8 | Mark Hoare | Eswatini | 59.27 | |
| 112 | 3 | 2 | Albachir Mouctar | Niger | 1:00.15 | |
| 113 | 3 | 4 | Edgar Iro | Solomon Islands | 1:00.98 | |
| 114 | 1 | 5 | Guerby Ruuska | Haiti | 1:01.04 | |
| 115 | 3 | 6 | Michael Swift | Malawi | 1:02.55 | |
| 116 | 4 | 9 | Houssein Gaber | Djibouti | 1:03.54 | |
| 117 | 2 | 4 | Hakim Youssouf | Comoros | 1:05.48 | |
| 118 | 2 | 1 | Mamadou Bah | Guinea | 1:05.54 | |
| 119 | 2 | 5 | Domingos da Silva | East Timor | 1:06.71 | |
| 120 | 3 | 5 | Tenzin Sangay | Bhutan | 1:07.28 | |
| | 9 | 8 | Khurshidjon Tursunov | Uzbekistan | DNS | DNS |
| | 12 | 5 | Duncan Scott | Great Britain | DNS | DNS |
| | 12 | 6 | Chad le Clos | South Africa | DNS | DNS |

### Semifinals

The semifinals were held on 24 July at 20:26.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | Kyle Chalmers | Australia | 47.58 | Q |
| 2 | 4 | Vladislav Grinev | Russia | 47.82 | Q |
| 3 | 5 | Clément Mignon | France | 48.25 | Q |
| 4 | 3 | Nándor Németh | Hungary | 48.29 | Q |
| 5 | 6 | Alessandro Miressi | Italy | 48.36 | |
| 6 | 7 | Katsumi Nakamura | Japan | 48.45 | |
| 7 | 8 | Dylan Carter | Trinidad and Tobago | 48.52 | NR |
| 8 | 1 | Pieter Timmers | Belgium | 48.91 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Caeleb Dressel | United States | 47.35 | Q |
| 2 | 5 | Marcelo Chierighini | Brazil | 47.76 | Q |
| 3 | 3 | Blake Pieroni | United States | 47.87 | Q |
| 4 | 6 | Breno Correia | Brazil | 48.33 | Q |
| 5 | 2 | Clyde Lewis | Australia | 48.45 | |
| 6 | 7 | Shinri Shioura | Japan | 48.54 | |
| 7 | 1 | Mehdy Metella | France | 48.65 | |
| 8 | 8 | He Junyi | China | 48.67 | |

### Final

The final was held on 25 July at 20:22.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Caeleb Dressel | United States | 46.96 | NR |
| | 5 | Kyle Chalmers | Australia | 47.08 | |
| | 6 | Vladislav Grinev | Russia | 47.82 | |
| 4 | 2 | Blake Pieroni | United States | 47.88 | |
| 5 | 3 | Marcelo Chierighini | Brazil | 47.93 | |
| 6 | 1 | Nándor Németh | Hungary | 48.10 | NR |
| 7 | 7 | Clément Mignon | France | 48.43 | |
| 8 | 8 | Breno Correia | Brazil | 48.90 | |