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

The Men's 50 metre butterfly competition at the 2017 Summer Universiade was held on 20 and 21 August 2017.

## Records

Prior to the competition, the existing world and Universiade records were as follows.
| World record | Rafael Muñoz (ESP) | 22.43 | Málaga, Spain | 5 April 2009 |
| Competition record | Jason Dunford (KEN) | 23.09 | Belgrade, Serbia | 5 July 2009 |
The following new records were set during this competition.
| Date | Event | Name | Nationality | Time | Record |
| 21 August | Final | Andriy Hovorov | Ukraine | 22.90 | UR |

## Results
### Heats

The heats were held on 20 August at 11:01.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 10 | 4 | Andriy Hovorov | Ukraine | 23.52 | Q |
| 2 | 9 | 3 | Shunichi Nakao | Japan | 23.74 | Q |
| 3 | 8 | 4 | Guilherme Rosolen | Brazil | 23.76 | Q |
| 4 | 8 | 2 | Aleksandr Sadovnikov | Russia | 23.79 | Q |
| 4 | 9 | 4 | Henrique Martins | Brazil | 23.79 | Q |
| 6 | 10 | 3 | Andrey Zhilkin | Russia | 23.86 | Q |
| 7 | 10 | 5 | Andrii Khloptsov | Ukraine | 23.87 | Q |
| 8 | 9 | 5 | Yahor Dodaleu | Belarus | 23.96 | Q |
| 9 | 8 | 5 | Konrad Czerniak | Poland | 23.97 | Q |
| 10 | 9 | 2 | Marcus Schlesinger | Israel | 24.05 | Q |
| 11 | 8 | 3 | Brayden Mccarthy | Australia | 24.08 | Q |
| 12 | 7 | 1 | Nao Horomura | Japan | 24.09 | Q |
| 13 | 7 | 3 | Zane Waddell | South Africa | 24.16 | Q |
| 14 | 10 | 6 | Andrea Vergani | Italy | 24.21 | Q |
| 15 | 8 | 6 | Justin Lynch | United States | 24.25 | Q, WD |
| 16 | 9 | 7 | Conor Brines | Ireland | 24.26 | QSO |
| 16 | 10 | 7 | Jan Šefl | Czech Republic | 24.26 | QSO |
| 18 | 6 | 8 | Long Gutiérrez | Mexico | 24.29 | |
| 18 | 8 | 8 | Ryan Coetzee | South Africa | 24.29 | |
| 20 | 10 | 2 | Pulai Bence | Hungary | 24.31 | |
| 21 | 9 | 1 | Ari-Pekka Liukkonen | Finland | 24.37 | |
| 21 | 9 | 6 | Tadas Duškinas | Lithuania | 24.37 | |
| 23 | 10 | 1 | Yang Jung-doo | South Korea | 24.39 | |
| 24 | 9 | 8 | Bence Gyárfás | Hungary | 24.41 | |
| 25 | 8 | 7 | Jesper Björk | Sweden | 24.42 | |
| 26 | 5 | 3 | Kaan Ayar | Turkey | 24.43 | |
| 27 | 7 | 2 | Zach Harting | United States | 24.45 | |
| 28 | 10 | 8 | Marius Radu | Romania | 24.47 | |
| 29 | 8 | 1 | Michał Poprawa | Poland | 24.50 | |
| 30 | 7 | 5 | Jorge Iga | Mexico | 24.58 | |
| 31 | 6 | 5 | Maximilian Oswald | Germany | 24.60 | |
| 32 | 6 | 3 | Guido Buscaglia | Argentina | 24.67 | |
| 32 | 6 | 2 | Josiah Binnema | Canada | 24.67 | |
| 34 | 7 | 8 | Fotios Koliopoulos | Greece | 24.77 | |
| 34 | 6 | 4 | Nikolajs Maskaļenko | Latvia | 24.77 | |
| 36 | 4 | 5 | Laurent Bams | Netherlands | 24.81 | |
| 37 | 7 | 7 | Alexander Kunert | Germany | 24.89 | |
| 38 | 4 | 1 | Cevin Siim | Estonia | 24.91 | |
| 39 | 4 | 7 | Daniel Namir | Israel | 24.93 | |
| 40 | 7 | 4 | Sascha Subarsky | Austria | 24.95 | |
| 41 | 5 | 6 | Chu Chen-ping | Chinese Taipei | 25.02 | |
| 42 | 6 | 6 | Stefanos Dimitriadis | Greece | 25.05 | |
| 43 | 5 | 4 | Giacomo Carini | Italy | 25.06 | |
| 44 | 6 | 7 | David Arias | Colombia | 25.07 | |
| 45 | 5 | 5 | Chang Kuo-chi | Chinese Taipei | 25.09 | |
| 46 | 4 | 3 | Josef Moser | Czech Republic | 25.10 | |
| 46 | 5 | 8 | Nicolás Deferrari | Argentina | 25.10 | |
| 48 | 4 | 2 | Zhang Shimeng | China | 25.13 | |
| 49 | 4 | 6 | Jaakko Rautalin | Finland | 25.14 | |
| 50 | 5 | 2 | Lee Tae-gu | South Korea | 25.19 | |
| 51 | 4 | 4 | Jin Yuli | China | 25.20 | |
| 52 | 7 | 6 | Nicholas Brown | Australia | 25.24 | |
| 53 | 5 | 7 | Ho Tin Long | Hong Kong | 25.67 | |
| 54 | 6 | 1 | Kemal Arda Gürdal | Turkey | 25.91 | |
| 55 | 3 | 4 | Muhammad Hamgari | Indonesia | 26.00 | |
| 56 | 3 | 2 | Muhammad Alamzah | Indonesia | 26.04 | |
| 57 | 4 | 8 | Daniel Mitsumasu | Peru | 26.04 | |
| 58 | 2 | 3 | Carlos Orihuela | Paraguay | 26.14 | |
| 59 | 3 | 5 | Mahieddine Galdem | Algeria | 26.21 | |
| 60 | 3 | 6 | Gershwin Greene | Bahamas | 26.25 | |
| 61 | 3 | 3 | Joshua Gold | Estonia | 26.31 | |
| 62 | 3 | 7 | Ho Wei Ming | Singapore | 26.49 | |
| 63 | 5 | 1 | Mhikcoloe Abina | Philippines | 26.60 | |
| 64 | 2 | 4 | Valts Feldbergs | Latvia | 26.64 | |
| 65 | 2 | 5 | Nicholas Sammut | Malta | 26.85 | |
| 66 | 3 | 1 | Tan Zhe Xian Dion | Singapore | 27.07 | |
| 67 | 3 | 8 | Mohammad Baghdadi | Lebanon | 27.21 | |
| 68 | 1 | 5 | Kalana Weeramuni | Sri Lanka | 27.23 | |
| 69 | 1 | 4 | Jeffrey Galea | Malta | 27.86 | |
| 70 | 2 | 2 | Daniel Bou Diab | Lebanon | 28.15 | |
| 71 | 1 | 6 | Nidhal Al Harrasi | Oman | 28.59 | |
| 72 | 1 | 7 | Rajitha Herath | Sri Lanka | 28.82 | |
| 73 | 2 | 6 | Enrique Nava | Bolivia | 28.93 | |
| 74 | 1 | 2 | Daisuke Ssegwanyi | Uganda | 29.58 | |
| 75 | 2 | 7 | Roger Giron | Philippines | 29.80 | |
| 76 | 1 | 3 | Conrado Sacco | Paraguay | 29.84 | |
| 77 | 1 | 8 | Ayman Al Qasmi | Oman | 30.14 | |
| | 1 | 1 | Ali Nazari | Afghanistan | DNS | |
| | 2 | 1 | Izon Alfred | Nigeria | DNS | |
| | 2 | 8 | Forsight Osamezu | Nigeria | DNS | |

### Swim-off

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Conor Brines | Ireland | 24.07 | Q |
| 2 | 4 | Jan Šefl | Czech Republic | 24.17 | |

### Semifinals

The semifinals were held on 20 August at 20:02.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | Andrey Zhilkin | Russia | 23.45 | Q |
| 2 | 4 | Shunichi Nakao | Japan | 23.57 | Q |
| 3 | 5 | Aleksandr Sadovnikov | Russia | 23.71 | Q |
| 4 | 2 | Marcus Schlesinger | Israel | 23.72 | Q |
| 5 | 8 | Jan Šefl | Czech Republic | 23.79 | |
| 6 | 7 | Nao Horomura | Japan | 24.19 | |
| 7 | 1 | Andrea Vergani | Italy | 24.20 | |
| | 6 | Yahor Dodaleu | Belarus | DNS | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Andriy Hovorov | Ukraine | 23.17 | Q |
| 2 | 6 | Andrii Khloptsov | Ukraine | 23.60 | Q |
| 3 | 3 | Henrique Martins | Brazil | 23.61 | Q |
| 4 | 2 | Konrad Czerniak | Poland | 23.76 | Q |
| 5 | 5 | Guilherme Rosolen | Brazil | 23.92 | |
| 6 | 7 | Brayden Mccarthy | Australia | 24.02 | |
| 7 | 8 | Conor Brines | Ireland | 24.10 | |
| 8 | 1 | Zane Waddell | South Africa | 24.48 | |

### Final

The final was held on 21 August at 19:02.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Andriy Hovorov | Ukraine | 22.90 | UR |
| | 5 | Andrey Zhilkin | Russia | 23.40 | |
| | 2 | Henrique Martins | Brazil | 23.54 | |
| | 6 | Andrii Khloptsov | Ukraine | 23.54 | |
| 5 | 8 | Konrad Czerniak | Poland | 23.62 | |
| 6 | 3 | Shunichi Nakao | Japan | 23.65 | |
| 7 | 1 | Marcus Schlesinger | Israel | 23.80 | |
| 8 | 7 | Aleksandr Sadovnikov | Russia | 23.87 | |