The women's 400-metre freestyle competition at the 2019 World Championships was held on 21 July 2019.ScheduleStart list Ariarne Titmus overcame a .62-second deficit in the last 50 metres to defeat defending champion Katie Ledecky. This was Ledecky's first loss in a major international 400 metre freestyle competition.Katie Ledecky beaten in 400m freestyle to open swim worlds, NBC, 2019

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

Results Heats The heats were held at 11:22.Heats results Rank Heat Lane Name Nationality Time Notes 1 5 4 Katie Ledecky 4:01.84 Q 2 4 4 Ariarne Titmus 4:02.42 Q 3 4 3 Ajna Késely 4:03.51 Q 4 4 5 Wang Jianjiahe 4:03.97 Q 5 5 5 Leah Smith 4:04.53 Q 6 4 2 Veronika Andrusenko 4:06.28 Q 7 5 2 Boglárka Kapás 4:07.05 Q 8 5 7 Anna Egorova 4:07.10 Q 9 5 3 Li Bingjie 4:07.88 10 5 6 Holly Hibbott 4:07.92 11 4 6 Kiah Melverton 4:09.56 12 4 8 Emma O'Croinin 4:09.68 13 3 4 Barbora Seemanová 4:09.73 NR 14 3 3 Marlene Kahler 4:10.49 15 4 7 Mireia Belmonte 4:10.82 16 5 8 Joanna Evans 4:11.06 17 5 0 Erika Fairweather 4:12.30 18 5 9 Valentine Dumont 4:12.92 19 3 6 Nguyễn Thị Ánh Viên 4:13.35 20 5 1 Chihiro Igarashi 4:13.81 21 4 0 Julia Hassler 4:13.91 22 2 4 Monique Olivier 4:14.29 NR 23 3 7 Duné Coetzee 4:14.39 24 4 1 Mackenzie Padington 4:16.06 25 2 6 Laura Lahtinen 4:16.43 NR 26 3 5 Katja Fain 4:17.57 27 4 9 Diana Durães 4:17.87 28 3 0 Gan Ching Hwee 4:17.89 29 3 1 Elisbet Gámez 4:18.19 30 2 5 Natthanan Junkrajang 4:19.00 31 3 8 Nicole Oliva 4:20.03 32 3 2 Ryu Ji-won 4:21.70 33 2 3 María Álvarez 4:22.46 34 2 2 Sara Pastrana 4:27.65 35 2 1 Amanda Alfaro 4:29.91 36 1 3 Talita Te Flan 4:34.04 37 2 7 Daila Ismatul 4:34.75 38 3 9 Diana Zlobina 4:35.38 39 2 9 Tiana Rabarijaona 4:36.73 40 2 0 Danielle Treasure 4:37.22 41 2 8 Raya Embury-Brown 4:38.17 42 1 4 Natalia Kuipers 4:41.69 43 1 5 Tinatin Kevlishvili 4:49.73

Final The final was held at 20:33.Final results

Rank Lane Name Nationality Time Notes 5 Ariarne Titmus 3:58.76 OC 4 Katie Ledecky 3:59.97 2 Leah Smith 4:01.29 4 3 Ajna Késely 4:01.31 NR 5 6 Wang Jianjiahe 4:03.67 6 1 Boglárka Kapás 4:05.36 7 8 Anna Egorova 4:06.16 8 7 Veronika Andrusenko 4:08.60

References