Swimming at the 2013 World Aquatics Championships – Men's 100 metre backstroke

Prior to this competition, the existing world and championship records were:

World record	Aaron Peirsol (USA)	51.94	Indianapolis, United States	8 July 2009	[3][4]
Competition record	Aaron Peirsol (USA)	52.19	Rome, Italy	2 August 2009	[5]

The heats were held at 10:14.^[6]

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	6	6	Ashley Delaney	Australia	53.60	Q
2	5	5	David Plummer	United States	53.62	Q
3	6	7	Xu Jiayu	China	53.63	Q
4	5	4	Ryosuke Irie	Japan	53.66	Q
5	4	4	Jérémy Stravius	France	53.85	Q
6	6	4	Matt Grevers	United States	53.92	Q
7	6	5	Kosuke Hagino	Japan	53.94	Q
8	4	3	László Cseh	Hungary	54.06	Q
9	5	2	Bastiaan Lijesen	Netherlands	54.07	Q
10	4	2	Radosław Kawęcki	Poland	54.20	Q
10	5	6	Camille Lacourt	France	54.20	Q
12	5	3	Chris Walker-Hebborn	Great Britain	54.23	Q
13	4	5	Cheng Feiyi	China	54.30	Q
14	6	3	Gareth Kean	New Zealand	54.37	Q
15	1	5	Darren Murray	South Africa	54.64	Q
16	4	6	Charles Francis	Canada	54.72	Q
17	6	2	Aschwin Wildeboer	Spain	54.75
18	5	7	Mirco di Tora	Italy	54.76
19	6	1	Yakov-Yan Toumarkin	Israel	54.85
20	5	9	Federico Grabich	Argentina	55.03
21	5	1	Daniel Orzechowski	Brazil	55.09
22	4	7	Pavel Sankovich	Belarus	55.13
23	6	8	Lavrans Solli	Norway	55.52
24	6	9	I Gede Siman Sudartawa	Indonesia	55.55
25	4	0	Danas Rapšys	Lithuania	55.68
26	5	0	Alexandr Tarabrin	Kazakhstan	55.70
27	4	1	Felix Wolf	Germany	55.88
28	6	0	Lukas Räuftlin	Switzerland	56.11
29	5	8	Pedro Medel	Cuba	56.12
30	3	5	Martin Baďura	Czech Republic	56.19
31	3	6	Charles Hockin	Paraguay	56.50
32	3	3	Danil Bukin	Uzbekistan	56.63
33	4	9	Guven Duvan	Turkey	56.78
34	3	4	Jean-François Schneiders	Luxembourg	56.88
35	4	8	Shin Hee-Wong	South Korea	56.95
36	3	9	Boris Kirillov	Azerbaijan	58.17
37	3	8	Ngou Pok Man	Macau	58.26
38	3	7	Heshan Unamboowe	Sri Lanka	58.49
39	2	4	Artiom Gladun	Moldova	58.60
40	3	0	Jean Luis Gómez	Dominican Republic	59.30
41	3	1	Awse Ma'aya	Jordan	59.75
42	3	2	Khachik Plavchyan	Armenia	59.79	NR
43	2	3	Gorazd Chepishevski	North Macedonia	1:00.11
44	2	5	Rodrigo Soriano	El Salvador	1:00.79
45	2	6	Jordan Augier	Saint Lucia	1:00.99	NR
46	2	2	Hamdan Bayusuf	Kenya	1:01.05
47	2	7	Eisner Barberena	Nicaragua	1:01.44
48	1	3	Maroun Waked	Lebanon	1:02.23
49	2	1	Yaaqoub Al-Saadi	United Arab Emirates	1:02.97
50	2	8	Victor Torres	U.S. Virgin Islands	1:04.41
51	2	0	Erdenemunkh Demuul	Mongolia	1:05.18
52	1	4	Faraj Saleh Faraj Sultan	Bahrain	1:05.67
53	2	9	Andrianirina Lalanomena	Madagascar	1:06.10

The semifinals were held at 18:18.^[7]

Rank	Lane	Name	Nationality	Time	Notes
1	3	Matt Grevers	United States	52.97	Q
2	4	David Plummer	United States	53.10	Q
3	5	Ryosuke Irie	Japan	53.41	Q
4	1	Gareth Kean	New Zealand	53.81	Q
5	2	Radosław Kawęcki	Poland	53.82
6	7	Chris Walker-Hebborn	Great Britain	53.96
7	6	László Cseh	Hungary	54.00
8	8	Charles Francis	Canada	54.96

Rank	Lane	Name	Nationality	Time	Notes
1	3	Jérémy Stravius	France	53.23	Q
2	7	Camille Lacourt	France	53.42	Q
3	6	Kosuke Hagino	Japan	53.68	Q
4	4	Ashley Delaney	Australia	53.74	Q
5	5	Xu Jiayu	China	53.84
6	2	Bastiaan Lijesen	Netherlands	53.92
7	1	Cheng Feiyi	China	54.20
8	8	Darren Murray	South Africa	55.02

The final was held at 19:06.^[8]

Rank	Lane	Name	Nationality	Time	Notes
	4	Matt Grevers	United States	52.93
	5	David Plummer	United States	53.12
	3	Jérémy Stravius	France	53.21
4	6	Ryosuke Irie	Japan	53.29
5	2	Camille Lacourt	France	53.51
6	1	Ashley Delaney	Australia	53.55
7	7	Kosuke Hagino	Japan	53.93
8	8	Gareth Kean	New Zealand	54.25

• Barcelona 2013 Swimming Coverage