Swimming at the 2017 World Aquatics Championships – Women's 800 metre freestyle explained

Event:	Women's 800 metre freestyle
Championship:	2017 World Aquatics Championships
Dates:	28 July (heats) 29 July (final)
Venue:	Danube Arena
Location:	Budapest, Hungary
Competitors:	40
Nations:	34
Win Value:	8:12.68
Gold:	Katie Ledecky
Gold Nation:	USA
Silver:	Li Bingjie
Silver Nation:	CHN
Bronze Nation:	USA
Prev:	2015
Next:	2019

The Women's 800 metre freestyle competition at the 2017 World Championships was held on 28 and 29 July 2017.^[1] ^[2]

Records

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

The heats were held on 28 July at 11:06.^[3]

Rank	Heat	Lane	Time	Notes
1	4	4	8:20.24	Q
2	3	5	8:21.19	Q
3	4	3	8:22.92	Q
4	4	5	8:24.98	Q
5	3	6	8:27.70	Q
6	3	4	8:28.93	Q
7	4	6	8:29.52	Q
8	3	1	8:30.66	Q
9	3	2	8:32.01
10	2	4	8:34.13	NR
11	4	8	8:34.16
12	3	8	8:34.51
13	3	9	8:35.10
14	3	3	8:37.10
15	4	2	8:38.84
16	4	1	8:40.68
17	2	3	8:40.87
18	4	7	8:41.41
19	4	9	8:41.49
20	4	0	8:43.93
21	3	0	8:44.85
22	3	7	8:44.87
23	2	5	8:49.76
24	2	7	8:52.39
25	2	1	8:54.27
26	2	8	8:54.30
27	1	4	8:56.12
28	2	2	8:56.43
29	2	9	8:58.31
30	2	0	9:02.49
31	1	5	9:03.38
32	1	3	9:05.67
33	1	7	9:07.56
34	2	6	9:08.78
35	1	6	9:17.77
36	1	1	9:19.43
37	1	2	9:32.44
38	1	8	9:39.78

The final was held on 29 July at 18:55.^[4]