# Swimming at the 2009 World Aquatics Championships – Men's 100 metre breaststroke

The heats for the men's 100 metre breaststroke race at the 2009 World Championships took place in the morning and evening of 26 July and the final took place in the evening session of 27 July at the Foro Italico in Rome, Italy.

## Records

Prior to this competition, the existing world and competition records were as follows:
| World record | Kosuke Kitajima (JPN) | 58.91 | Beijing, China | 11 August 2008 |
| Championship record | Brendan Hansen (USA) | 59.37 | Montreal, Canada | 29 July 2005 |
The following records were established during the competition:
| Date | Round | Name | Nationality | Time | Record |
| 26 July | Heat 14 | Brenton Rickard | Australia | 58.98 | CR |
| 26 July | Semifinal 2 | Eric Shanteau | United States | 58.96 | CR |
| 27 July | Final | Brenton Rickard | Australia | 58.58 | WR |

## Results
### Heats

| Rank | Name | Nationality | Time | Heat | Lane | Notes |
| 1 | Brenton Rickard | Australia | 58.98 | 14 | 6 | CR, OC |
| 2 | Hugues Duboscq | France | 59.01 | 14 | 5 | ER |
| 3 | Eric Shanteau | United States | 59.05 | 15 | 3 | |
| 4 | Giedrius Titenis | Lithuania | 59.24 | 14 | 2 | NR |
| 5 | Igor Borysik | Ukraine | 59.34 | 15 | 4 | |
| 6 | Henrique Barbosa | Brazil | 59.49 | 13 | 4 | |
| 7 | Hendrik Feldwehr | Germany | 59.52 | 13 | 5 | |
| 7 | Christian Sprenger | Australia | 59.52 | 13 | 7 | |
| 9 | Cameron van der Burgh | South Africa | 59.54 | 15 | 2 | AF |
| 10 | Mark Gangloff | United States | 59.67 | 14 | 4 | |
| 11 | James Gibson | Great Britain | 59.68 | 15 | 7 | NR |
| 12 | Ryo Tateishi | Japan | 59.69 | 14 | 3 | |
| 13 | Damir Dugonjič | Slovenia | 59.89 | 15 | 1 | |
| 14 | Yuta Suenaga | Japan | 59.95 | 13 | 6 | |
| 15 | Alexander Dale Oen | Norway | 1:00.05 | 15 | 5 | |
| 15 | Johannes Neumann | Germany | 1:00.05 | 15 | 6 | |
| 17 | Valerii Dymo | Ukraine | 1:00.13 | 13 | 9 | |
| 18 | Čaba Silađi | Serbia | 1:00.20 | 13 | 8 | |
| 19 | Mathieu Bois | Canada | 1:00.23 | 15 | 8 | =NR |
| 20 | Dániel Gyurta | Hungary | 1:00.26 | 12 | 7 | NR |
| 21 | Scott Dickens | Canada | 1:00.31 | 14 | 7 | |
| 22 | Lennart Stekelenburg | Netherlands | 1:00.36 | 13 | 3 | |
| 23 | Grigory Falko | Russia | 1:00.47 | 12 | 3 | |
| 24 | Luca Pizzini | Italy | 1:00.54 | 14 | 0 | |
| 25 | Martti Aljand | Estonia | 1:00.56 | 10 | 3 | NR |
| 26 | Glenn Snyders | New Zealand | 1:00.77 | 13 | 2 | |
| 27 | Hunor Mate | Austria | 1:00.78 | 12 | 4 | NR |
| 28 | Kristopher Gilchrist | Great Britain | 1:00.81 | 14 | 8 | |
| 29 | Vladislav Polyakov | Kazakhstan | 1:00.83 | 14 | 9 | |
| 30 | João Gomes Jr. | Brazil | 1:00.88 | 14 | 1 | |
| 31 | Stanislav Lakhtyukhov | Russia | 1:00.95 | 15 | 9 | |
| 32 | Yevgeniy Ryzhkov | Kazakhstan | 1:01.02 | 12 | 0 | |
| 33 | Melquiades Alvarez | Spain | 1:01.07 | 13 | 1 | |
| 34 | Mattia Pesce | Italy | 1:01.18 | 15 | 0 | |
| 35 | Sandeep Sejwal | India | 1:01.20 | 11 | 2 | NR |
| 36 | Romanos Alyfantis | Greece | 1:01.27 | 12 | 6 | |
| 37 | Jakob Jóhann Sveinsson | Iceland | 1:01.32 | 11 | 8 | NR |
| 37 | Matjaž Markič | Slovenia | 1:01.32 | 12 | 1 | |
| 39 | Slawomir Wolniak | Poland | 1:01.39 | 13 | 0 | |
| 40 | Thabang Moeketsane | South Africa | 1:01.40 | 10 | 1 | |
| 41 | Dimitrios Xynadas | Greece | 1:01.44 | 11 | 6 | |
| 42 | Zhang Guoying | China | 1:01.53 | 12 | 2 | |
| 43 | Petr Bartunek | Czech Republic | 1:01.59 | 10 | 0 | |
| 43 | Maxim Podoprigora | Austria | 1:01.59 | 12 | 9 | |
| 45 | Alejandro Jacobo | Mexico | 1:01.60 | 11 | 0 | NR |
| 46 | Dinko Geshev | Bulgaria | 1:01.72 | 9 | 8 | |
| 47 | Sofiane Daid | Algeria | 1:01.74 | 11 | 7 | NR |
| 48 | Barry Murphy | Ireland | 1:01.76 | 9 | 3 | =NR |
| 49 | Andrew Bree | Ireland | 1:01.78 | 9 | 6 | |
| 50 | Jorge Murillo | Colombia | 1:01.79 | 10 | 4 | NR |
| 51 | Malick Fall | Senegal | 1:01.80 | 11 | 3 | |
| 52 | Wang Shuai | China | 1:01.84 | 11 | 5 | |
| 53 | Nguyen Huu Viet | Vietnam | 1:02.17 | 9 | 7 | |
| 54 | Laurent Carnol | Luxembourg | 1:02.27 | 10 | 2 | |
| 55 | Chris Christensen | Denmark | 1:02.41 | 10 | 7 | NR |
| 56 | Carlos Almeida | Portugal | 1:02.46 | 7 | 9 | |
| 57 | Joshua Arreguin | Mexico | 1:02.58 | 11 | 9 | |
| 58 | Gonzalo Acuna | Argentina | 1:02.60 | 9 | 4 | NR |
| 59 | Tomáš Klobučník | Slovakia | 1:02.61 | 9 | 1 | |
| 60 | Viktar Vabishchevich | Belarus | 1:02.73 | 11 | 1 | |
| 61 | Vaidotas Blazys | Lithuania | 1:02.76 | 7 | 7 | |
| 62 | Eetu Karvonen | Finland | 1:02.83 | 8 | 7 | |
| 63 | Genaro Prono | Paraguay | 1:02.84 | 11 | 4 | |
| 64 | Édgar Crespo | Panama | 1:02.92 | 9 | 2 | |
| 65 | Hocine Haciane | Andorra | 1:02.94 | 9 | 0 | NR |
| 66 | Sławomir Kuczko | Poland | 1:03.00 | 12 | 5 | |
| 67 | Dragos Agache | Romania | 1:03.02 | 10 | 9 | |
| 68 | Daniel Velez | Puerto Rico | 1:03.19 | 12 | 8 | |
| 69 | Ivan Demyanenko | Uzbekistan | 1:03.24 | 8 | 6 | |
| 70 | Diego Santander Caballero | Chile | 1:03.49 | 7 | 2 | |
| 71 | Chan Wing Lim Eric | Hong Kong | 1:03.68 | 8 | 2 | |
| 72 | Matthew Charles Smith | Estonia | 1:03.71 | 8 | 1 | |
| 73 | Martin Andres Melconian Alvez | Uruguay | 1:03.77 | 7 | 4 | NR |
| 74 | Tom Beeri | Israel | 1:03.94 | 10 | 5 | |
| 75 | Benjamin Le Maguet | Switzerland | 1:04.02 | 10 | 8 | |
| 76 | Renato David Prono Fernandez | Paraguay | 1:04.06 | 10 | 6 | |
| 77 | Mohammad Alirezaei | Iran | 1:04.16 | 9 | 5 | |
| 78 | Abdulrahman Albader | Kuwait | 1:04.31 | 8 | 0 | |
| 79 | Sergiu Postica | Moldova | 1:04.76 | 8 | 3 | |
| 80 | Indra Gunawan | Indonesia | 1:04.79 | 8 | 5 | |
| 81 | Wang Wei-Wen | Chinese Taipei | 1:04.86 | 7 | 3 | |
| 82 | Tan Jinwen Mark | Singapore | 1:05.02 | 7 | 6 | |
| 83 | Agnishwar Jayaprakash | India | 1:05.07 | 6 | 2 | |
| 84 | Vorrawuti Aumpiwan | Thailand | 1:05.17 | 9 | 9 | |
| 85 | Ömer Aslanoglu | Turkey | 1:05.55 | 8 | 9 | |
| 86 | Pedro Pinotes | Angola | 1:05.65 | 4 | 7 | |
| 87 | Wael Koubrousli | Lebanon | 1:05.71 | 6 | 3 | |
| 88 | Wong Chun Yan | Hong Kong | 1:05.87 | 5 | 5 | |
| 89 | Aleksey Derlyugov | Uzbekistan | 1:05.95 | 6 | 7 | |
| 90 | Juan Guerra | El Salvador | 1:06.07 | 6 | 5 | |
| 91 | Ng Jia Hao | Singapore | 1:06.21 | 8 | 8 | |
| 92 | Pedro Luna Llamosas | Peru | 1:06.39 | 6 | 1 | |
| 93 | Rainui Teriipaia | Tahiti | 1:06.72 | 8 | 4 | |
| 94 | Mubarak Al-Besher | United Arab Emirates | 1:06.81 | 4 | 5 | |
| 95 | Yousuf Essa Al Yousuf | Saudi Arabia | 1:06.84 | 6 | 6 | |
| 96 | Dmitrii Aleksandrov | Kyrgyzstan | 1:07.03 | 7 | 1 | |
| 97 | Timothy Ferris | Zimbabwe | 1:07.12 | 5 | 6 | |
| 98 | Maximilian Siedentopf | Namibia | 1:07.39 | 4 | 6 | |
| 99 | Ma Chan Wai | Macau | 1:07.46 | 6 | 8 | |
| 100 | Humoud Alhumoud | Kuwait | 1:07.54 | 7 | 0 | |
| 101 | Julian Fletcher | Bermuda | 1:07.70 | 5 | 4 | |
| 102 | Tudor Postolachi | Moldova | 1:07.73 | 6 | 4 | |
| 103 | Erik Rajohnson | Madagascar | 1:08.09 | 6 | 9 | |
| 104 | Filip Velkovski | Macedonia | 1:08.34 | 1 | 2 | |
| 105 | Nazih Mezayek | Jordan | 1:08.58 | 5 | 3 | |
| 106 | Eli Ebenezer Wong | Northern Mariana Islands | 1:08.79 | 4 | 2 | NR |
| 107 | Andranik Harutyunyan | Armenia | 1:08.93 | 5 | 1 | |
| 108 | Hemra Nurmyradov | Turkmenistan | 1:09.25 | 5 | 8 | |
| 109 | Eric Williams | Nigeria | 1:09.34 | 5 | 2 | |
| 110 | Diguan Pigot | Suriname | 1:09.41 | 4 | 3 | |
| 111 | Ian Bond Wolongkatop Nakmai | Papua New Guinea | 1:09.64 | 4 | 1 | |
| 112 | Andres Castillo | Panama | 1:09.70 | 3 | 5 | |
| 113 | Zane Jordan | Zambia | 1:09.77 | 5 | 7 | |
| 114 | Andrea Agius | Malta | 1:09.81 | 5 | 0 | |
| 115 | Peter James Lynch | Zambia | 1:09.94 | 3 | 4 | |
| 116 | Timur Kartabaev | Kyrgyzstan | 1:10.14 | 6 | 0 | |
| 117 | Kevin Cheung | Mauritius | 1:10.25 | 4 | 0 | |
| 118 | Ronny Vencatachellum | Mauritius | 1:10.36 | 4 | 8 | |
| 119 | Vincent Perry | Tahiti | 1:10.73 | 3 | 3 | |
| 120 | Awolowo Solomon Shedrack | Nigeria | 1:10.89 | 5 | 9 | |
| 121 | Mamadou Cisse | Guinea | 1:11.59 | 2 | 8 | |
| 122 | Norayr Ghazaryan | Armenia | 1:12.22 | 4 | 4 | |
| 123 | Pablo Navarrete | Nicaragua | 1:12.32 | 3 | 6 | |
| 124 | Boldbaatar Butekhuils | Mongolia | 1:13.06 | 4 | 9 | |
| 125 | Michael Taylor | Marshall Islands | 1:13.61 | 3 | 1 | |
| 126 | Shailesh Shumsher Rana | Nepal | 1:13.65 | 3 | 7 | |
| 127 | Serdar Mopyyev | Turkmenistan | 1:13.76 | 3 | 0 | |
| 128 | Jonny Bishop | Marshall Islands | 1:14.07 | 3 | 8 | |
| 129 | Evan Isam Jameel Balyos | Iraq | 1:14.77 | 2 | 0 | |
| 130 | Jurgen Fici | Albania | 1:16.82 | 3 | 2 | |
| 131 | Ganzi Mugula | Uganda | 1:16.96 | 2 | 5 | |
| 132 | Ron Roucou | Seychelles | 1:17.38 | 2 | 4 | |
| 133 | Nadir Elmofti | Libya | 1:18.34 | 2 | 2 | |
| 134 | Abib Sereme | Mali | 1:19.36 | 1 | 6 | |
| 135 | Sharif Kakooza | Uganda | 1:20.72 | 3 | 9 | |
| 136 | Omar Abdalla | Tanzania | 1:23.27 | 1 | 4 | |
| 137 | Sonenina Phamixay | Laos | 1:24.61 | 1 | 3 | |
| 138 | Robert Scanlan | American Samoa | 1:27.19 | 2 | 7 | |
| 139 | Saido Kamilov | Tajikistan | 1:31.41 | 7 | 5 | |
| 140 | Said Seba | Tanzania | 1:32.85 | 2 | 9 | |
| 141 | Abdoulkader Mohamed Houssein | Djibouti | 1:33.32 | 2 | 3 | |
| 142 | Mohamed Osman Bourhanta | Djibouti | 1:34.54 | 2 | 6 | |
| — | Nduwimana Etienne | Burundi | DNS | 2 | 1 | |

### Semifinals

| Rank | Name | Nationality | Time | Heat | Lane | Notes |
| 1 | Eric Shanteau | United States | 58.96 | 2 | 7 | CR, AM |
| 2 | Cameron van der Burgh | South Africa | 59.13 | 2 | 2 | AF |
| 3 | Hendrik Feldwehr | Germany | 59.15 | 2 | 6 | NR |
| 4 | Brenton Rickard | Australia | 59.27 | 2 | 4 | |
| 5 | Igor Borysik | Ukraine | 59.39 | 2 | 3 | |
| 6 | Giedrius Titenis | Lithuania | 59.43 | 1 | 5 | |
| 7 | Hugues Duboscq | France | 59.46 | 1 | 4 | |
| 8 | Henrique Barbosa | Brazil | 59.60 | 1 | 3 | |
| 9 | Ryo Tateishi | Japan | 59.61 | 1 | 7 | |
| 10 | Damir Dugonjič | Slovenia | 59.66 | 2 | 1 | |
| 11 | Mark Gangloff | United States | 59.71 | 1 | 2 | |
| 12 | Johannes Neumann | Germany | 59.85 | 1 | 8 | |
| 13 | Alexander Dale Oen | Norway | 59.90 | 2 | 8 | |
| 14 | James Gibson | Great Britain | 59.91 | 2 | 7 | |
| 15 | Yuta Suenaga | Japan | 59.98 | 1 | 1 | |
| 15 | Christian Sprenger | Australia | 59.98 | 1 | 6 | |

### Final

| Rank | Name | Nationality | Lane | Time | Notes |
| | Brenton Rickard | Australia | 6 | 58.58 | WR |
| | Hugues Duboscq | France | 1 | 58.64 | ER |
| | Cameron van der Burgh | South Africa | 5 | 58.95 | AF |
| 4 | Eric Shanteau | United States | 4 | 58.98 | |
| 5 | Igor Borysik | Ukraine | 2 | 59.23 | |
| 6 | Giedrius Titenis | Lithuania | 7 | 59.27 | |
| 7 | Hendrik Feldwehr | Germany | 3 | 59.33 | |
| 8 | Henrique Barbosa | Brazil | 8 | 59.54 | |