# Swimming at the 2017 Summer Universiade – Men's 50 metre backstroke

The Men's 50 metre backstroke competition at the 2017 Summer Universiade was held on 22 and 23 August 2017.

## Records

Prior to the competition, the existing world and Universiade records were as follows.
| World record | Liam Tancock (GBR) | 24.04 | Rome, Italy | 2 August 2009 |
| Competition record | Junya Koga (JPN) | 24.63 | Belgrade, Serbia | 8 July 2009 |

## Results
### Heats

The heats were held on 22 August at 10:14.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 8 | 4 | Justin Ress | United States | 25.10 | Q |
| 2 | 8 | 3 | Shane Ryan | Ireland | 25.12 | Q |
| 3 | 7 | 3 | Mikita Tsmyh | Belarus | 25.17 | Q |
| 3 | 7 | 4 | Jonatan Kopelev | Israel | 25.17 | Q |
| 5 | 6 | 4 | Tomasz Polewka | Poland | 25.25 | Q |
| 6 | 6 | 5 | Apostolos Christou | Greece | 25.27 | Q |
| 7 | 7 | 5 | Taylor Dale | United States | 25.32 | Q |
| 8 | 8 | 5 | Ben Treffers | Australia | 25.38 | Q |
| 9 | 8 | 6 | Nikita Ulyanov | Russia | 25.44 | Q |
| 10 | 5 | 5 | Dmytro Gurnytskyi | Ukraine | 25.46 | Q |
| 11 | 7 | 2 | Niccolò Bonacchi | Italy | 25.50 | Q |
| 12 | 4 | 1 | Shuhei Uno | Japan | 25.53 | Q |
| 12 | 7 | 6 | Viktar Staselovich | Belarus | 25.53 | Q |
| 14 | 6 | 6 | Matteo Milli | Italy | 25.59 | Q |
| 15 | 8 | 2 | Won Young-jun | South Korea | 25.61 | Q |
| 16 | 5 | 4 | Charles Hockin | Paraguay | 25.73 | Q |
| 17 | 7 | 8 | Gábor Balog | Hungary | 25.75 | |
| 18 | 7 | 1 | Andrey Arbuzov | Russia | 25.85 | |
| 19 | 7 | 7 | Henrique Martins | Brazil | 25.86 | |
| 20 | 6 | 7 | Guilherme Basseto | Brazil | 25.91 | |
| 21 | 6 | 2 | Gustav Hökfelt | Sweden | 25.92 | |
| 22 | 8 | 8 | Gytis Stankevičius | Lithuania | 26.00 | |
| 23 | 6 | 1 | Rafał Bugdol | Poland | 26.06 | |
| 24 | 8 | 7 | Georgios Spanoudakis | Greece | 26.09 | |
| 25 | 5 | 2 | Bayley Main | New Zealand | 26.14 | |
| 26 | 6 | 3 | Bohdan Kasian | Ukraine | 26.18 | |
| 27 | 6 | 8 | Bence Szentes | Hungary | 26.24 | |
| 28 | 4 | 3 | Adil Kaskabay | Kazakhstan | 26.30 | |
| 29 | 3 | 4 | Guido Buscaglia | Argentina | 26.34 | |
| 30 | 5 | 1 | Nicolás Deferrari | Argentina | 26.38 | |
| 31 | 4 | 7 | Bernhard Reitshammer | Austria | 26.41 | |
| 32 | 4 | 5 | Girts Feldbergs | Latvia | 26.48 | |
| 33 | 4 | 6 | Corneille Coetzee | New Zealand | 26.51 | |
| 34 | 5 | 8 | Axel Pettersson | Sweden | 26.56 | |
| 35 | 4 | 4 | Gabriel Lópes | Portugal | 26.57 | |
| 36 | 3 | 7 | Andy Song | Mexico | 26.58 | |
| 37 | 3 | 1 | Lau Shiu Yue | Hong Kong | 26.63 | |
| 38 | 3 | 5 | Chang Hou-chi | Chinese Taipei | 26.72 | |
| 39 | 5 | 6 | David Céspedes | Colombia | 26.73 | |
| 40 | 2 | 6 | Andrei Gussev | Estonia | 26.75 | |
| 41 | 3 | 6 | Clayton Jimmie | South Africa | 26.78 | |
| 42 | 5 | 3 | Oren Malka | Israel | 26.80 | |
| 43 | 4 | 8 | Rory Mcevoy | Ireland | 26.96 | |
| 44 | 3 | 3 | Chang Kuo-chi | Chinese Taipei | 27.00 | |
| 45 | 3 | 8 | Janne Markkanen | Finland | 27.05 | |
| 46 | 2 | 4 | Neil Fair | South Africa | 27.17 | |
| 47 | 2 | 5 | Jaakko Rautalin | Finland | 27.56 | |
| 48 | 2 | 3 | Daniel Mitsumasu | Peru | 27.93 | |
| 49 | 2 | 1 | Christian Sidler | Switzerland | 28.13 | |
| 49 | 2 | 7 | Pedro Chiancone | Uruguay | 28.13 | |
| 51 | 5 | 7 | Gorazd Chepishevski | Macedonia | 28.16 | |
| 52 | 3 | 2 | Nassim Aboub | Algeria | 28.20 | |
| 53 | 2 | 2 | Maroun Waked | Lebanon | 28.91 | |
| 53 | 2 | 8 | Arian Puyo | Philippines | 28.91 | |
| 55 | 1 | 4 | Alfredo Yaluk | Paraguay | 30.32 | |
| 56 | 1 | 6 | Kalana Weeramuni | Sri Lanka | 30.59 | |
| 57 | 1 | 1 | Daniil Latt | Estonia | 32.47 | |
| 58 | 1 | 8 | Salim Al-Masroori | Oman | 33.02 | |
| 59 | 1 | 3 | Kobe Soguilon | Philippines | 33.70 | |
| 60 | 1 | 7 | Murtaza Naimee | Afghanistan | 45.75 | |
| | 1 | 2 | Joseph Godbless | Nigeria | DNS | |
| | 1 | 5 | Amukali Oduni | Nigeria | DNS | |
| | 4 | 2 | Mehdi Benbara | Algeria | DNS | |
| | 8 | 1 | Shunichi Nakao | Japan | DNS | |

### Semifinals

The semifinals were held on 22 August at 20:48.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Shane Ryan | Ireland | 24.97 | Q |
| 2 | 3 | Apostolos Christou | Greece | 25.20 | Q |
| 3 | 6 | Ben Treffers | Australia | 25.34 | Q |
| 4 | 7 | Viktar Staselovich | Belarus | 25.40 | |
| 5 | 5 | Mikita Tsmyh | Belarus | 25.43 | |
| 6 | 1 | Matteo Milli | Italy | 25.55 | |
| 7 | 2 | Dmytro Gurnytskyi | Ukraine | 25.59 | |
| 8 | 8 | Charles Hockin | Paraguay | 25.85 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | Tomasz Polewka | Poland | 25.11 | Q |
| 1 | 2 | Nikita Ulyanov | Russia | 25.11 | Q |
| 3 | 8 | Won Young-jun | South Korea | 25.13 | Q |
| 4 | 4 | Justin Ress | United States | 25.19 | Q |
| 5 | 6 | Taylor Dale | United States | 25.22 | Q |
| 6 | 5 | Jonatan Kopelev | Israel | 25.42 | |
| 7 | 7 | Niccolò Bonacchi | Italy | 25.46 | |
| 8 | 1 | Shuhei Uno | Japan | 25.55 | |

### Final

The final was held on 23 August at 20:40.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Shane Ryan | Ireland | 24.72 | NR |
| | 2 | Justin Ress | United States | 24.73 | |
| | 6 | Won Young-jun | South Korea | 25.06 | |
| 4 | 1 | Taylor Dale | United States | 25.15 | |
| 5 | 3 | Tomasz Polewka | Poland | 25.18 | |
| 6 | 5 | Nikita Ulyanov | Russia | 25.20 | |
| 7 | 8 | Ben Treffers | Australia | 25.21 | |
| 8 | 7 | Apostolos Christou | Greece | 25.27 | |