Swimming at the 2013 World Aquatics Championships – Men's 100 metre breaststroke
The men's 100 metre breaststroke event in swimming at the 2013 World Aquatics Championships took place on 28–29 July at the Palau Sant Jordi in Barcelona, Spain.Records
Prior to this competition, the existing world and championship records were:Results
Heats
The heats were held at 11:47.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 7 | 4 | Christian Sprenger | | | Q |
| 2 | 8 | 2 | Kirill Strelnikov | | | Q |
| 3 | 6 | 4 | Fabio Scozzoli | | | Q |
| 3 | 7 | 5 | Kosuke Kitajima | | | Q |
| 5 | 8 | 3 | Glenn Snyders | | | Q |
| 6 | 8 | 6 | Kevin Cordes | | 1:00.01 | Q |
| 7 | 8 | 4 | Cameron van der Burgh | | 1:00.02 | Q |
| 8 | 6 | 6 | Felipe Lima | | 1:00.06 | Q |
| 9 | 7 | 3 | Ross Murdoch | | 1:00.08 | Q |
| 9 | 8 | 7 | Hendrik Feldwehr | | 1:00.08 | Q |
| 11 | 7 | 6 | Michael Jamieson | | 1:00.20 | Q |
| 12 | 6 | 2 | Nicolas Fink | | 1:00.24 | Q |
| 12 | 7 | 2 | João Luiz Gomes Júnior | | 1:00.24 | Q |
| 14 | 7 | 7 | Mattia Pesce | | 1:00.32 | Q |
| 15 | 6 | 1 | Damir Dugonjič | | 1:00.36 | Q |
| 16 | 6 | 5 | Giedrius Titenis | | 1:00.44 | Q |
| 17 | 8 | 5 | Brenton Rickard | | 1:00.52 | |
| 18 | 6 | 0 | Dawid Szulich | | 1:00.54 | NR |
| 19 | 6 | 7 | Giacomo Perez d'Ortona | | 1:00.55 | |
| 20 | 6 | 3 | Akihiro Yamaguchi | | 1:00.69 | |
| 21 | 6 | 9 | Laurent Carnol | | 1:00.76 | |
| 22 | 7 | 8 | Richard Funk | | 1:00.89 | |
| 23 | 8 | 8 | Johannes Skagius | | 1:00.94 | NR |
| 24 | 7 | 9 | Carlos Almeida | | 1:01.01 | NR |
| 25 | 8 | 9 | Gu Biaorong | | 1:01.08 | |
| 26 | 5 | 3 | Jorge Murillo | | 1:01.28 | |
| 27 | 6 | 8 | Tomáš Klobučník | | 1:01.37 | |
| 28 | 7 | 1 | Vyacheslav Sinkevich | | 1:01.38 | |
| 28 | 8 | 1 | Christian vom Lehn | | 1:01.38 | |
| 30 | 7 | 0 | Panagiotis Samilidis | | 1:01.48 | |
| 31 | 4 | 7 | Dmitriy Balandin | | 1:01.58 | |
| 32 | 4 | 6 | Martin Schweizer | | 1:01.64 | |
| 33 | 5 | 4 | Ihor Borysyk | | 1:01.71 | |
| 34 | 5 | 0 | Imri Ganiel | | 1:01.77 | |
| 34 | 5 | 7 | Eetu Karvonen | | 1:01.77 | |
| 36 | 5 | 2 | Čaba Silađi | | 1:01.78 | |
| 37 | 8 | 0 | Edgar Crespo | | 1:01.95 | |
| 38 | 5 | 8 | Demir Atasoy | | 1:02.01 | NR |
| 39 | 5 | 6 | Viktar Vabishchevich | | 1:02.08 | NR |
| 40 | 5 | 5 | Martin Liivamägi | | 1:02.41 | |
| 41 | 4 | 1 | Miguel Ferreira | | 1:02.45 | |
| 42 | 4 | 3 | David Oliver Mercado | | 1:02.57 | |
| 43 | 5 | 1 | Choi Kyu-Woong | | 1:02.58 | |
| 44 | 4 | 2 | Sandeep Sejwal | | 1:02.69 | |
| 45 | 5 | 9 | Joshua Hall | | 1:02.87 | NR |
| 46 | 4 | 8 | Radomyos Matjiur | | 1:03.27 | |
| 47 | 3 | 6 | Nikolajs Maskalenko | | 1:03.28 | |
| 48 | 3 | 4 | Malick Fall | | 1:03.38 | |
| 49 | 3 | 3 | Abraham McLeod | | 1:03.47 | |
| 50 | 4 | 9 | Abdulrahman Al-Bader | | 1:03.72 | NR |
| 51 | 4 | 0 | Vladislav Mustafin | | 1:03.76 | |
| 52 | 3 | 7 | Eladio Carrion | | 1:04.40 | |
| 53 | 3 | 2 | Wong Chun Yan | | 1:04.96 | |
| 54 | 3 | 1 | James Lawson | | 1:05.12 | |
| 55 | 3 | 9 | Jesús Flores | | 1:05.32 | |
| 56 | 2 | 1 | Benjamin Schulte | | 1:05.67 | |
| 57 | 2 | 4 | José Montoya | | 1:05.89 | |
| 58 | 4 | 4 | Martin Melconian | | 1:05.90 | |
| 58 | 4 | 5 | Petr Bartůněk | | 1:05.90 | |
| 60 | 3 | 5 | Mubarak Al-Besher | | 1:06.17 | |
| 61 | 3 | 0 | Rafael van Leeuwaarde | | 1:06.22 | |
| 62 | 3 | 8 | Vasilii Danilov | | 1:06.51 | |
| 63 | 2 | 5 | Wael Koubrousli | | 1:06.54 | |
| 64 | 2 | 6 | Bradford Worrell | | 1:07.47 | NR |
| 65 | 2 | 3 | Serginni Marten | | 1:08.23 | |
| 66 | 2 | 0 | Douglas Miller | | 1:09.19 | NR |
| 67 | 1 | 4 | Pierre-Andre Adam | | 1:09.77 | |
| 68 | 2 | 2 | Muhammad Isa Ahmad | | 1:09.96 | |
| 69 | 1 | 5 | Troy Kojenlang | | 1:10.42 | |
| 70 | 2 | 9 | Alexandros Axiotis | | 1:10.73 | |
| 71 | 2 | 8 | Gunsennorov Zandanbal | | 1:11.27 | |
| 72 | 2 | 7 | J'Air Smith | | 1:14.70 | |
| 73 | 1 | 6 | | | 1:15.54 | |
| 74 | 1 | 3 | Lin Tin Kyaw | | 1:18.24 | |
| 75 | 1 | 2 | Storm Hablich | | 1:24.08 | |
| 76 | 1 | 7 | Yokubdzhon Umarov | | 1:25.50 | |
| 77 | 1 | 1 | Awoussou Ablam Hodadje | | 1:32.77 | |
Semifinals
The semifinals were held at 19:06.Semifinal 1
Semifinal 2
Final
The final was held at 18:02.
| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | Christian Sprenger | | 58.79 | |
| 3 | Cameron van der Burgh | | 58.97 | |
| 2 | Felipe Lima | | 59.65 | |
| 4 | 6 | Damir Dugonjič | | 59.68 | |
| 5 | 1 | Fabio Scozzoli | | 59.70 | |
| 6 | 8 | Kosuke Kitajima | | 59.98 | |
| 7 | 5 | Kevin Cordes | | | |
| 8 | 7 | Nicolas Fink | | | |
