Heats
mercredi 24 juillet 2019, 03h15 GMT – 03h15 GMT
| Nom | Équipe | Temps | |
|---|---|---|---|
| 1 |  Caeleb Dressel | United States | 47.32″ |
| 2 |  Vladislav Grinev | Russia | + 0.6″ |
| 3 |  Marcelo Chierighini | Brazil | + 0.63″ |
| 4 |  Clement Mignon | France | + 0.88″ |
| 5 | Blake Pieroni | United States | + 0.99″ |
| 6 | Nándor Németh | Hungary | + 1.04″ |
| 7 | Breno Correia | Brazil | + 1.07″ |
| 8 |  Alessandro Miressi | Italy | + 1.25″ |
| 9 | Clyde Lewis | Australia | + 1.31″ |
| 10 |  Kyle Chalmers | Australia | + 1.34″ |
| 11 |  Katsumi Nakamura | Japan | + 1.36″ |
| 11 | Shinri Shioura | Japan | + 1.36″ |
| 13 |  Mehdy Metella | France | + 1.39″ |
| 14 |  Junyi He | China | + 1.44″ |
| 14 |  Pieter Timmers | Belgium | + 1.44″ |
| 16 | Dylan Carter | Trinidad & Tobago | + 1.45″ |
| 17 |  Yuri Kisil | Canada | + 1.47″ |
| 18 | Santo Condorelli | Italy | + 1.48″ |
| 19 | Sergiy Shevtsov | Ukraine | + 1.55″ |
| 19 |  Kacper Majchrzak | Poland | + 1.55″ |
| 21 |  Simonas Bilis | Lithuania | + 1.58″ |
| 22 | Markus Thormeyer | Canada | + 1.73″ |
| 23 | Oussama Sahnoune | Algeria | + 1.76″ |
| 24 | Vladimir Morozov | Russia | + 1.77″ |
| 25 |  Kyle Stolk | Netherlands | + 1.88″ |
| 26 | Ali Khalafalla | Egypt | + 1.9″ |
| 27 | Bruno Blaškovic | Croatia | + 1.92″ |
| 28 |  Marius Kusch | Germany | + 1.99″ |
| 29 | Jae-Hoon Yang | Korea | + 2.05″ |
| 30 | Cristian Quintero | Venezuela | + 2.08″ |
| 31 |  Nils Liess | Switzerland | + 2.1″ |
| 32 | Daniel Zaitsev | Estonia | + 2.12″ |
| 32 |  Velimir Stjepanovic | Serbia | + 2.12″ |
| 34 | Khader Baqleh | Jordan | + 2.14″ |
| 35 | Emir Muratovic | Bosnia & Herzegovina | + 2.27″ |
| 35 | Mikel Schreuders | Aruba | + 2.27″ |
| 37 | Daniel Hunter | New Zealand | + 2.46″ |
| 38 | Meiron Cheruti | Israel | + 2.5″ |
| 39 | Renzo Tjon A Joe | Suriname | + 2.53″ |
| 40 | Darren Chua | Singapore | + 2.57″ |
| 41 | Artsiom Machekin | Belarus | + 2.58″ |
| 42 | Luke Gebbie | Philippines | + 2.62″ |
| 43 | Benjamín Hockin | Paraguay | + 2.63″ |
| 44 | Miguel Nascimento | Portugal | + 2.66″ |
| 44 |  Ari-Pekka Liukkonen | Finland | + 2.66″ |
| 46 | Alexei Sancov | Moldova | + 2.73″ |
| 47 | Emre Sakçi | Turkey | + 2.92″ |
| 48 | Artur Barseghyan | Armenia | + 2.94″ |
| 49 | Vladimír Štefánik | Slovakia | + 2.95″ |
| 50 | Adil Kaskabay | Kazakhstan | + 3.02″ |
| 51 | Ian Ho | Hong Kong, China | + 3.06″ |
| 52 | Julien Henx | Luxembourg | + 3.11″ |
| 53 | Alexander Skinner | Namibia | + 3.12″ |
| 53 | Nikša Stojkovski | Norway | + 3.12″ |
| 55 | Ioannis Georgarakis | Greece | + 3.16″ |
| 56 | Peter Wetzlar | Zimbabwe | + 3.18″ |
| 57 | Waleed Abdulrazzaq | Kuwait | + 3.31″ |
| 58 | Isaac Beitia | Panama | + 3.34″ |
| 59 | Welson Sim | Malaysia | + 3.45″ |
| 60 | Horus Briseño | Mexico | + 3.48″ |
| 61 | Curtis Coulter | Ireland | + 3.54″ |
| 62 | Enzo Martínez | Uruguay | + 3.67″ |
| 63 | Mokhtar Al-Yamani | Yemen | + 3.84″ |
| 64 | Gabriel Araya | Chile | + 4.02″ |
| 65 | Andrew Digby | Thailand | + 4.15″ |
| 66 | Benyamin Gharehhassanloo | Iran | + 4.17″ |
| 67 | Jean-Luc Zephir | St. Lucia | + 4.33″ |
| 67 | Chien Liang Lin | Chinese Taipei | + 4.33″ |
| 69 | Jesse Washington | Bermuda | + 4.35″ |
| 70 | Triady Fauzi Sidiq | Indonesia | + 4.48″ |
| 71 | Jared Fitzgerald | Bahamas | + 4.56″ |
| 72 | Teimuraz Kobakhidze | Georgia | + 4.61″ |
| 73 | Noah Mascoll-Gomes | Antigua and Barbuda | + 4.8″ |
| 73 | Netani Ross | Fiji | + 4.8″ |
| 75 | Miguel Mena | Nicaragua | + 4.88″ |
| 76 | Abdoul Khadre Niane | Senegal | + 4.94″ |
| 77 | Audai Hassouna | Libya | + 5.02″ |
| 78 | Jordan Crooks | Cayman Islands | + 5.04″ |
| 79 | Omiros Zagkas | Cyprus | + 5.12″ |
| 80 | Kledi Kadiu | Albania | + 5.21″ |
| 80 | Jagger Stephens | Guam | + 5.21″ |
| 82 | Samuel Seghers | Papua New Guinea | + 5.32″ |
| 83 | Danilo Rosafio | Kenya | + 5.34″ |
| 84 | Nixon Hernández | El Salvador | + 5.42″ |
| 85 | Delron Felix | Grenada | + 5.76″ |
| 86 | Haseeb Tariq | Pakistan | + 6.02″ |
| 87 | Matt Galea | Malta | + 6.31″ |
| 88 | Issa Al-Adawi | Oman | + 6.49″ |
| 89 | Atuhaire Ambala | Uganda | + 6.57″ |
| 90 | Noel Keane | Palau | + 6.78″ |
| 91 | Musa Zhalayev | Turkmenistan | + 6.82″ |
| 92 | Delgerkhuu Myagmar | Mongolia | + 7.11″ |
| 93 | Andrew Fowler | Guyana | + 7.4″ |
| 94 | Alex Joachim | St. Vincent & the Grenadines | + 7.64″ |
| 95 | Théo Chiabaut | Monaco | + 7.67″ |
| 96 | Heriniavo Rasolonjatovo | Madagascar | + 7.9″ |
| 97 | Yellow Yeiyah | Nigeria | + 7.91″ |
| 98 | Christian Nikles | Brunei Darussalam | + 8.01″ |
| 99 | Firas Saidi | Qatar | + 8.28″ |
| 100 | Daniel Christian | Eritrea | + 8.56″ |
| 101 | Kaleo Kihleng | Micronesia | + 8.65″ |
| 102 | Alexander Shah | Nepal | + 8.96″ |
| 103 | Dren Ukimeraj | Kosovo | + 9.01″ |
| 104 | Billy Scott Irakoze | Burundi | + 9.13″ |
| 105 | Puch Hem | Cambodia | + 9.45″ |
| 106 | Finau Ohuafi | Tonga | + 10.13″ |
| 107 | Lennosuke Suzuki | Northern Mariana Islands | + 10.51″ |
| 108 | Mubal Azzam Ibrahim | Maldives | + 10.92″ |
| 109 | Adama Ouedraogo | Burkina Faso | + 10.95″ |
| 110 | Alijon Khairulloev | Tajikistan | + 11.04″ |
| 111 | Mark Hoare | Eswatini | + 11.95″ |
| 112 | Albachir Mouctar | Niger | + 12.83″ |
| 113 | Edgar Iro | Solomon Islands | + 13.66″ |
| 114 | Guerby Ruuska | Haiti | + 13.72″ |
| 115 | Michael Swift | Malawi | + 15.23″ |
| 116 | Houssein Gaber Ibrahim | Djibouti | + 16.22″ |
| 117 | Hakim Youssouf | Comoros | + 18.16″ |
| 118 | Mamadou Bah | Guinea | + 18.22″ |
| 119 | Domingos Da Silva | East Timor | + 19.39″ |
| 120 | Sangay Tenzin | Bhutan | + 19.96″ |
| Duncan Scott | Great Britain | DNF | |
 Chad Le Clos | South Africa | DNF | |
| Khurshidjon Tursunov | Uzbekistan | DNF |