Swimming at the 2017 World Aquatics Championships – Men's 400 metre freestyle explained

Event:	Men's 400 metre freestyle
Championship:	2017 World Aquatics Championships
Dates:	23 July (heats and final)
Venue:	Danube Arena
Location:	Budapest, Hungary
Competitors:	52
Nations:	47
Win Value:	3:41.38
Gold:	Sun Yang
Gold Nation:	CHN
Silver:	Mack Horton
Silver Nation:	AUS
Bronze:	Gabriele Detti
Bronze Nation:	ITA
Prev:	2015
Next:	2019

The Men's 400 metre freestyle competition at the 2017 World Championships was held on 23 July 2017.^[1] ^[2]

Records

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

The heats were held at 09:43.^[3]

Rank	Heat	Lane	Time	Notes
1	5	7	3:44.19	Q, NR
2	5	4	3:44.55	Q
3	6	6	3:45.56	Q
4	6	3	3:45.57	Q
5	6	4	3:45.60	Q
6	5	5	3:45.64	Q
7	6	5	3:45.72	Q
8	5	3	3:46.14	Q
9	5	8	3:46.36	NR
10	5	1	3:46.73
11	6	7	3:46.96
12	5	6	3:47.12
13	6	2	3:47.35
14	6	8	3:47.47
15	5	2	3:48.64
16	4	7	3:48.82
17	4	6	3:48.96
18	4	3	3:49.61
19	4	1	3:50.75
20	6	0	3:50.88
21	4	4	3:51.28
22	4	2	3:51.35
23	5	0	3:51.52
24	5	9	3:51.76
25	6	9	3:51.94
26	3	4	3:52.10
27	4	0	3:53.04
28	4	5	3:53.06
29	6	1	3:53.17
30	3	2	3:53.45
31	3	3	3:53.63
32	2	6	3:54.13	NR
33	4	9	3:54.34
34	2	4	3:55.15
35	3	7	3:55.42
36	3	6	3:55.47
37	2	5	3:55.97	NR
38	4	8	3:56.58
39	3	5	3:57.43
40	3	0	3:58.40
41	2	2	3:58.58
42	3	8	3:59.29
43	3	1	3:59.57
44	2	3	4:00.50
45	1	3	4:04.03	NR
46	3	9	4:04.64
47	2	7	4:05.39
48	1	4	4:07.28	NR
49	2	8	4:08.73	NR
50	2	1	4:10.39
51	1	5	4:20.64
52	2	0	4:51.57	NR

The final was held at 17:32.^[4]