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

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

World record	Michael Phelps (USA)	49.82	Rome, Italy	1 August 2009	[3][4]
Competition record	Michael Phelps (USA)	49.82	Rome, Italy	1 August 2009	[3][4]

The heats were held at 10:39.^[5]

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	4	4	Yevgeny Korotyshkin	Russia	51.55	Q
2	5	4	Chad le Clos	South Africa	51.88	Q
3	6	8	László Cseh	Hungary	51.89	Q
4	5	7	Ivan Lenđer	Serbia	51.95	Q
5	5	5	Matteo Rivolta	Italy	52.00	Q
6	4	6	Yauhen Tsurkin	Belarus	52.03	Q, NR
7	6	4	Steffen Deibler	Germany	52.07	Q
8	5	6	Nikolay Skvortsov	Russia	52.09	Q
9	5	3	Konrad Czerniak	Poland	52.12	Q
10	6	6	Michael Rock	Great Britain	52.13	Q
11	4	3	Paweł Korzeniowski	Poland	52.16	Q
12	5	0	Thiago Pereira	Brazil	52.23	Q
13	4	5	Ryan Lochte	United States	52.26	Q
14	6	5	Eugene Godsoe	United States	52.38	Q
15	5	2	Takuro Fujii	Japan	52.50	Q
16	6	7	Philip Heintz	Germany	52.52	Q
17	4	7	Joseph Schooling	Singapore	52.56
18	5	8	Francois Heersbrandt	Belgium	52.75
19	4	2	Tommaso D'Orsogna	Australia	52.82
20	6	3	Chris Wright	Australia	52.83
21	5	1	Pavel Sankovich	Belarus	52.87
22	3	6	Mario Todorović	Croatia	52.92
23	4	8	Rafael Muñoz	Spain	52.94
24	6	2	Bence Pulai	Hungary	52.98
25	6	1	Yuki Kobori	Japan	53.11
25	6	0	Mauricio Fiol	Peru	53.11
27	6	9	Benjamin Hockin	Paraguay	53.28
28	3	5	Alexandru Coci	Romania	53.34
29	3	3	Coleman Allen	Canada	53.53
30	4	1	Mehdy Metella	France	53.77
31	5	9	Simao Morgado	Portugal	53.83
32	3	4	Dominik Meichtry	Switzerland	53.96
33	3	2	Tadas Duskinas	Lithuania	53.97
34	4	0	Chang Gyu-Cheol	South Korea	54.09
35	3	7	Yevgeniy Lazuka	Azerbaijan	54.29
36	3	1	Liu Weijia	China	54.37
37	3	9	Marwan Adel	Egypt	54.39
38	3	0	Martin Zikmund	Czech Republic	54.63
39	2	7	Ricardo Yee	Panama	55.82
40	2	1	Jessie Lacuna	Philippines	55.92
41	2	6	Joshua McLeod	Trinidad and Tobago	56.06
42	2	2	Tyrone Alvarado	Ecuador	56.27
43	2	3	Ifalemi Sau-Paea	Tonga	56.32
44	2	4	Alexandre Bakhtiarov	Cyprus	56.38
45	3	8	Yousef Al-Askari	Kuwait	56.40
46	1	6	Anthony Ralefy	Madagascar	56.48
46	2	5	Ayman Klzie	Syria	56.48
48	1	4	Christopher Clark	French Polynesia	56.50
49	1	3	Ralph Goveia	Zambia	57.66
50	2	0	Sofyan El Gadi	Libya	57.79
51	2	8	Afshin Asgari	Iran	59.29
52	2	9	Ameer Ali	Iraq	59.81
53	1	2	Oumar Toure	Mali	59.86
54	1	1	Stanford Kawale	Papua New Guinea	1:02.42
55	1	7	Kensuke Kimura	Northern Mariana Islands	1:02.79
56	1	9	Sylla Alassane	Ivory Coast	1:03.49
57	1	8	Haris Bandey	Pakistan	1:06.03
	1	0	Abdulrahman Al-Ishaq	Qatar		DNS
	1	5	Nuno Miguel Rola	Angola		DNS
	4	9	Simon Sjödin	Sweden		DNS

The semifinals were held at 19:04.^[6]

Rank	Lane	Name	Nationality	Time	Notes
1	4	Chad le Clos	South Africa	51.52	Q
2	3	Yauhen Tsurkin	Belarus	51.78	Q, NR
3	6	Nikolay Skvortsov	Russia	51.86
4	1	Eugene Godsoe	United States	51.96
5	5	Ivan Lenđer	Serbia	52.10
6	8	Philip Heintz	Germany	52.37
7	7	Thiago Pereira	Brazil	52.43
8	2	Michael Rock	Great Britain	52.55

Rank	Lane	Name	Nationality	Time	Notes
1	1	Ryan Lochte	United States	51.48	Q
2	2	Konrad Czerniak	Poland	51.55	Q
3	4	Yevgeny Korotyshkin	Russia	51.60	Q
4	5	László Cseh	Hungary	51.61	Q, NR
5	3	Matteo Rivolta	Italy	51.64	Q, NR
6	6	Steffen Deibler	Germany	51.65	Q
7	7	Paweł Korzeniowski	Poland	51.85
8	8	Takuro Fujii	Japan	52.27

The final was held at 18:43.^[7]

Rank	Lane	Name	Nationality	Time	Notes
	5	Chad le Clos	South Africa	51.06	NR
	2	László Cseh	Hungary	51.45	NR
	3	Konrad Czerniak	Poland	51.46
4	1	Steffen Deibler	Germany	51.54
5	6	Yevgeny Korotyshkin	Russia	51.57
6	4	Ryan Lochte	United States	51.58
7	7	Matteo Rivolta	Italy	51.65
7	8	Yauhen Tsurkin	Belarus	51.65	NR

• Barcelona 2013 Swimming Coverage