Men's 50 metre backstroke at the 2015 World Aquatics Championships
Victory Ceremony
Dates	8 August (heats and semifinals) 9 August (final)
Competitors	68 from 61 nations
Winning time	24.23
Medalists
Camille Lacourt    France   Matt Grevers    United States   Ben Treffers    Australia
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The Men's 50 metre backstroke competition of the swimming events at the 2015 World Aquatics Championships was held on 8 August with the heats and the semifinals and 9 August with the final.^[1]

Prior to the competition, the existing world and championship records were as follows.

World record	Liam Tancock (GBR)	24.04	Rome, Italy	2 August 2009
Competition record	Liam Tancock (GBR)	24.04	Rome, Italy	2 August 2009

The heats were held at 09:54.^[2]

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	5	4	Camille Lacourt	France	24.56	Q
2	5	3	Matt Grevers	United States	24.68	Q
3	6	4	Ben Treffers	Australia	24.74	Q
4	5	5	Mitch Larkin	Australia	24.77	Q
5	6	5	David Plummer	United States	24.79	Q
6	6	6	Liam Tancock	Great Britain	24.91	Q
7	7	5	Jérémy Stravius	France	24.95	Q
8	7	7	Pavel Sankovich	Belarus	24.97	Q, NR
9	7	6	Carl Schwarz	Germany	25.12	Q
10	6	2	Jonatan Kopelev	Israel	25.14	Q
11	7	2	Simone Sabbioni	Italy	25.21	Q
12	7	3	Tomasz Polewka	Poland	25.25	Q
13	5	1	Grigory Tarasevich	Russia	25.27	Q
13	7	4	Vladimir Morozov	Russia	25.27	Q
15	5	7	Lavrans Solli	Norway	25.28	Q
16	6	3	Miguel Ortiz-Cañavate	Spain	25.29	QSO
16	6	1	Guilherme Guido	Brazil	25.29	QSO
18	5	6	Guy Barnea	Israel	25.31
19	5	0	Park Seon-kwan	South Korea	25.33
20	7	8	Quah Zheng Wen	Singapore	25.44
21	4	6	Ralf Tribuntsov	Estonia	25.45
22	4	4	Robert Glință	Romania	25.48
23	4	5	Masaki Kaneko	Japan	25.49
24	6	8	Apostolos Christou	Greece	25.50
25	5	2	Juan Miguel Rando	Spain	25.54
26	6	0	François Heersbrandt	Belgium	25.55
27	4	1	Federico Grabich	Argentina	25.60
28	3	1	Alexis Santos	Portugal	25.70
29	7	1	Xu Jiayu	China	25.71
30	5	8	I Gede Siman Sudartawa	Indonesia	25.77
31	6	7	Russell Wood	Canada	25.79
32	7	0	Viktar Staselovich	Belarus	25.85
33	4	7	Iskender Baskalov	Turkey	25.94
34	4	3	Albert Subirats	Venezuela	26.07
35	4	8	Ryan Pini	Papua New Guinea	26.11
36	7	9	Lê Nguyễn Paul	Vietnam	26.14
37	5	9	Janis Šaltans	Latvia	26.19
38	4	2	Kasipat Chograthin	Thailand	26.20
39	4	9	Omar Pinzón	Colombia	26.27
40	3	5	Mohamed Hussein	Egypt	26.42
40	3	3	Daniil Bukin	Uzbekistan	26.42
42	3	8	Jamal Chavoshifar	Iran	26.53
43	3	7	David McLeod	Trinidad and Tobago	26.54
44	4	0	Charles Hockin	Paraguay	26.57
45	2	5	Merdan Atayev	Turkmenistan	26.64
46	3	6	Martin Zhelev	Bulgaria	26.66
47	3	0	Tern Tern	Malaysia	26.73
48	3	4	Daniel Ramírez	Mexico	26.84
49	2	6	David van der Colff	Botswana	26.88
50	3	2	Riyad Djendouci	Algeria	27.20
51	3	9	Ngou Pok Man	Macau	27.20
52	2	3	Timothy Wynter	Jamaica	27.21
53	2	7	Eisner Barbarena	Nicaragua	27.35
54	2	2	Hamdan Bayusuf	Kenya	27.74
55	2	4	Yaaqoub Al-Saadi	United Arab Emirates	28.04
56	2	8	Noah Mascoll-Gomes	Antigua and Barbuda	28.69
57	2	1	Samson Opuakpo	Nigeria	28.70
58	2	9	Mohammad Ahmed	Bangladesh	29.10
59	2	0	Faraj Saleh	Bahrain	29.66
60	1	3	Adam Allouche	Lebanon	29.91
61	1	4	Arnold Kisulo	Uganda	29.98
62	1	5	Kerry Ollivierre	Grenada	30.42
63	1	6	Kwesi Jackson	Ghana	31.08
64	1	7	Ramziyor Khorkashov	Tajikistan	33.15
65	1	8	Santisouk Inthavong	Laos	33.24
66	1	2	Tano Atta	Ivory Coast	33.92
67	1	0	Ebrahim Al-Maleki	Yemen	34.19
68	1	1	Moris Beale	Sierra Leone	35.85
	6	9	Gábor Balog	Hungary		DNS

It was established that there would be a swim-off between the Brazilian Guilherme Guido and the Spanish Miguel Ortiz. However Guido chose not to swim the race, preferring to rest and focus on the 4 × 100 medley relay.^[3]

The semifinals were held on 8 August at 18.45.^[4]

Rank	Lane	Name	Nationality	Time	Notes
1	4	Matt Grevers	United States	24.59	Q
2	5	Mitch Larkin	Australia	24.65	Q
3	3	Liam Tancock	Great Britain	24.75	Q
4	1	Vladimir Morozov	Russia	24.77	Q
5	6	Pavel Sankovich	Belarus	25.02
6	2	Jonatan Kopelev	Israel	25.04
7	7	Tomasz Polewka	Poland	25.11	NR
8	8	Miguel Ortiz-Cañavate	Spain	25.19

Rank	Lane	Name	Nationality	Time	Notes
1	4	Camille Lacourt	France	24.27	Q
2	5	Ben Treffers	Australia	24.64	Q
3	3	David Plummer	United States	24.82	Q
4	8	Lavrans Solli	Norway	24.93	Q, NR
5	6	Jérémy Stravius	France	24.94
6	7	Simone Sabbioni	Italy	25.05
7	2	Carl Schwarz	Germany	25.20
8	1	Grigory Tarasevich	Russia	25.42

The final was held on 9 August at 16:32.^[5]

Rank	Lane	Name	Nationality	Time	Notes
	4	Camille Lacourt	France	24.23
	5	Matt Grevers	United States	24.61
	3	Ben Treffers	Australia	24.69
4	6	Mitch Larkin	Australia	24.70
5	7	Vladimir Morozov	Russia	24.73
6	8	Lavrans Solli	Norway	24.84	NR
7	2	Liam Tancock	Great Britain	24.88
8	1	David Plummer	United States	24.95