# Swimming at the 2011 World Aquatics Championships – Men's 50 metre breaststroke

The men's 50 metre breaststroke competition of the swimming events at the 2011 World Aquatics Championships was held on July 26 with the heats and the semifinals and July 27 with the final.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Name | Nation | Time | Location | Date |
| World record Championship record | Cameron van der Burgh | South Africa | 26.67 | Rome | July 29, 2009 |

## Results
### Heats

51 swimmers participated in 7 heats.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 6 | 4 | Felipe França Silva | Brazil | 27.19 | Q |
| 2 | 5 | 3 | Matjaž Markič | Slovenia | 27.36 | Q |
| 3 | 7 | 5 | Damir Dugonjič | Slovenia | 27.47 | Q |
| 4 | 7 | 6 | Mark Gangloff | United States | 27.49 | Q |
| 5 | 6 | 6 | Alexander Dale Oen | Norway | 27.51 | Q, NR |
| 6 | 6 | 2 | Glenn Snyders | New Zealand | 27.52 | Q, NR |
| 7 | 7 | 4 | Cameron van der Burgh | South Africa | 27.58 | Q |
| 8 | 5 | 4 | Hendrik Feldwehr | Germany | 27.67 | Q |
| 9 | 6 | 3 | Dragos Agache | Romania | 27.75 | Q |
| 10 | 6 | 5 | Fabio Scozzoli | Italy | 27.84 | Q |
| 10 | 7 | 7 | Aleksandr Triznov | Russia | 27.84 | Q |
| 12 | 4 | 6 | Petr Bartůněk | Czech Republic | 27.86 | Q |
| 13 | 5 | 5 | Brenton Rickard | Australia | 27.89 | Q |
| 14 | 6 | 7 | Čaba Silađi | Serbia | 27.93 | Q |
| 15 | 7 | 3 | Lennart Stekelenburg | Netherlands | 27.95 | Q |
| 16 | 7 | 8 | Vladislav Polyakov | Kazakhstan | 28.00 | Q |
| 17 | 5 | 2 | Ryo Tateishi | Japan | 28.01 | |
| 18 | 5 | 6 | Barry Murphy | Ireland | 28.13 | |
| 19 | 4 | 4 | Gu Biaorong | China | 28.14 | |
| 20 | 6 | 1 | Giedrius Titenis | Lithuania | 28.14 | |
| 21 | 4 | 7 | Édgar Crespo | Panama | 28.15 | |
| 22 | 5 | 1 | Mohammad Alirezaei | Iran | 28.18 | |
| 23 | 7 | 2 | Andrew Dickens | Canada | 28.19 | |
| 24 | 4 | 1 | Rodion Davelaar | Netherlands Antilles | 28.21 | |
| 25 | 3 | 4 | Amini Fonua | Tonga | 28.23 | |
| 26 | 4 | 8 | Nabil Kebbab | Algeria | 28.25 | NR |
| 27 | 6 | 8 | Malick Fall | Senegal | 28.33 | |
| 28 | 4 | 5 | Dawid Szulich | Poland | 28.34 | |
| 29 | 4 | 3 | Filipp Provorkov | Estonia | 28.39 | |
| 30 | 4 | 2 | Jakob Dorch | Sweden | 28.42 | |
| 31 | 7 | 1 | Valerii Dymo | Ukraine | 28.44 | |
| 32 | 5 | 8 | Iisakki Ratilainen | Finland | 28.58 | |
| 33 | 3 | 5 | Laurent Carnol | Luxembourg | 28.63 | NR |
| 34 | 5 | 7 | Indra Gunawan | Indonesia | 28.81 | |
| 35 | 3 | 6 | Tomáš Klobučník | Slovakia | 28.95 | |
| 36 | 3 | 7 | Julian Fletcher | Bermuda | 29.11 | |
| 37 | 3 | 3 | Diego Santander | Chile | 29.85 | |
| 38 | 2 | 4 | Mubarak Al-Besher | United Arab Emirates | 30.02 | |
| 39 | 3 | 1 | Andrea Agius | Malta | 30.47 | |
| 40 | 3 | 2 | Shajahan Ali | Bangladesh | 30.88 | |
| 41 | 2 | 7 | Mamadou Fofana | Mali | 32.03 | |
| 42 | 2 | 2 | Hemthon Ponloeu | Cambodia | 33.48 | |
| 43 | 2 | 1 | Fdingue Ekane | Cameroon | 34.34 | |
| 44 | 2 | 6 | Ganzi Mugula | Uganda | 34.38 | |
| 45 | 2 | 3 | Ruslan Oliftaev | Tajikistan | 37.56 | |
| 46 | 3 | 8 | Abdoulrahman Mohamed Osman | Djibouti | 37.60 | |
| 47 | 1 | 3 | Yao Messa Roger Amegbeto | Togo | 41.43 | |
| 48 | 1 | 4 | Mohamed Mamaiv Sani | Niger | 41.86 | |
| 49 | 2 | 5 | Iourhanta Mohamed Osman | Djibouti | 43.37 | |
| 50 | 2 | 8 | Razak Marafa | Niger | 47.58 | |
| | 1 | 5 | Mohamed Camara | Guinea | DSQ | |

### Semifinals

The semifinals were held at 18:19.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | Fabio Scozzoli | Italy | 27.37 | Q |
| 2 | 6 | Hendrik Feldwehr | Germany | 27.53 | Q |
| 3 | 5 | Mark Gangloff | United States | 27.57 | Q |
| 4 | 3 | Glenn Snyders | New Zealand | 27.64 | |
| 5 | 4 | Matjaž Markič | Slovenia | 27.71 | |
| 6 | 8 | Vlad Polyakov | Kazakhstan | 27.81 | |
| 7 | 7 | Petr Bartůněk | Czech Republic | 27.87 | |
| 8 | 1 | Čaba Silađi | Serbia | 27.89 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 6 | Cameron van der Burgh | South Africa | 26.90 | Q |
| 2 | 4 | Felipe França Silva | Brazil | 26.95 | Q |
| 3 | 3 | Alexander Dale Oen | Norway | 27.33 | Q, NR |
| 4 | 5 | Damir Dugonjič | Slovenia | 27.51 | Q |
| 4 | 8 | Lennart Stekelenburg | Netherlands | 27.51 | Q |
| 6 | 2 | Dragos Agache | Romania | 27.71 | |
| 7 | 7 | Aleksandr Triznov | Russia | 27.73 | |
| 8 | 1 | Brenton Rickard | Australia | 27.80 | |

### Final

The final was held at 19:37. Video replay shows Felipe França Silva using an illegal dolphin kick at the finish; however the official on deck did not see it and so the results stand.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Felipe França Silva | Brazil | 27.01 | |
| | 6 | Fabio Scozzoli | Italy | 27.17 | NR |
| | 4 | Cameron van der Burgh | South Africa | 27.19 | |
| 4 | 1 | Hendrik Feldwehr | Germany | 27.41 | |
| 5 | 3 | Alexander Dale Oen | Norway | 27.43 | |
| 6 | 8 | Mark Gangloff | United States | 27.58 | |
| 7 | 7 | Lennart Stekelenburg | Netherlands | 27.65 | |
| 8 | 2 | Damir Dugonjič | Slovenia | 28.00 | |