Olympic Qualifyng Time by NOC - 24 Swimmers - additional 9 Swimmers.
Olympic Qualifying Time – 4:09.08
2 Quotas - 7 NOC
2
Australia
Jessica Ashwood
Tamsin Cook
2
Canada
Brittany MacLean
Emily Overholt
2
China
Cao Yue
Zhang Yuhan
2
Hungary
Boglárka Kapás
Ajna Késely
2
Italy
Diletta Carli
Alice Mizzau
2
Spain
Mireia Belmonte
Melani Costa
2
United_States
Katie Ledecky
Leah Smith
1 Quota - 10 NOC
1
Denmark
Lotte Friis
1
France
Coralie Balmy
1
Germany
Sarah Köhler
1
Great_Britain
Jazmin Carlin
1
Netherlands
Sharon van Rouwendaal
1
New_Zealand
Lauren Boyle
1
Russia
Arina Openysheva
1
Slovenia
Anja Klinar
1
Venezuela
Andreina Pinto
1
Vietnam
Nguyễn Thị Ánh Viên
Olympic Selection Time – 4:17.80 - 6 NOC
1
Bahamas
Joanna Evans - [a]
1
Brazil
Manuella Lyrio - [a]
1
Chile
Kristel Köbrich - [a]
1
Guatemala
Valerie Gruest - [a]
1
Japan
Chihiro Igarashi - [a]
1
Serbia
Katarina Simonović - [a]
Universalitiy Places - 3 NOC
1
Barbados
Lani Cabrera
1
El Salvador
Rebeca Quinteros
1
Lebanon
Gabrielle Doueihy
33
Total
Olympic Qualifyng Time (OQT) 4:09.08 - NOC can enter up to 2 swimmers with OQT.
Olympic Selection Time (OST) 4:17.80, invitational - A swwimer meeting the "invitation" standard was eligible for entry. But this entry was allotted/filled by ranking.