Swimming at the 2017 World Aquatics Championships – Men's 100 metre backstroke explained

Event:	Men's 100 metre backstroke
Championship:	2017 World Aquatics Championships
Dates:	24 July (heats and semifinals) 25 July (final)
Venue:	Danube Arena
Location:	Budapest, Hungary
Competitors:	48
Nations:	42
Win Value:	52.44
Gold:	Xu Jiayu
Gold Nation:	CHN
Silver:	Matt Grevers
Silver Nation:	USA
Bronze:	Ryan Murphy
Bronze Nation:	USA
Prev:	2015
Next:	2019

The Men's 100 metre backstroke competition at the 2017 World Championships was held on 24 and 25 July 2017.^[1] ^[2]

Records

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

The heats were held on 24 July at 09:47.^[3]

Rank	Heat	Lane	Time	Notes
1	4	4	52.77	Q
2	5	5	52.92	Q
3	4	5	53.18	Q
4	5	4	53.26	Q
5	5	3	53.54	Q
6	4	3	53.55	Q
7	3	4	53.72	Q
7	3	5	53.72	Q
9	3	2	53.97	Q
10	3	3	54.04	Q
11	3	1	54.17	Q
12	4	2	54.30	Q
13	3	6	54.33	Q
14	5	1	54.39	Q
15	5	6	54.43	Q
16	4	6	54.51	Q
17	4	7	54.52
18	4	8	54.68
19	5	7	54.69
20	5	2	54.82
21	3	7	54.88
22	5	8	54.90
23	4	1	55.05
24	3	8	55.60
25	2	6	55.80
25	4	9	55.80
27	2	5	55.81	NR
27	3	0	55.81
29	3	9	55.88
30	4	0	55.99
31	5	0	56.05
32	2	3	56.24
33	2	4	56.38
34	5	9	56.64
35	2	7	57.23
36	2	8	57.46
37	1	4	57.59
38	1	1	58.48
39	2	9	58.49
40	1	6	58.91
41	1	3	59.82
42	2	1	1:00.07
43	1	2	1:00.55
44	2	0	1:00.56
45	1	7	1:03.55
46	1	8	1:04.52
—	1	5

The semifinals were held on 24 July at 17:48.^[4]

Rank	Lane	Time	Notes
1	4	52.44	Q
2	3	53.02	Q
3	5	53.06	Q
4	6	53.19	Q
5	2	53.76	Q
6	1	53.94
7	8	54.11
8	7	54.44

The final was held on 25 July at 18:36.^[5]