| 1 |
Summer
McIntosh
|
CAN |
WR 4:23.65 |
06/11 |
2025 Bell Canadian Swimming Trials
Victoria, CAN |
| 2 |
Emma
WEYANT
|
USA |
4:33.95 |
05/02 |
2025 TYR Pro Swim Series
Fort Lauderdale, USA |
| 3 |
Ellen
Walshe
|
IRL |
4:35.32 |
05/02 |
2025 TYR Pro Swim Series
Fort Lauderdale, USA |
| 4 |
Mio
NARITA
|
JPN |
4:35.39 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 5 |
Yu
Zidi
|
CHN |
4:35.53 |
05/24 |
2025 Chinese National Championship
Shenzhen, CHN |
| 6 |
Mary-sophie
HARVEY
|
CAN |
4:35.56 |
06/12 |
2025 Bell Canadian Swimming Trials
Victoria, CAN |
| 7 |
Ella
Ramsay
|
AUS |
4:36.12 |
06/14 |
2025 Australian Swimming Trials
Oaklands Park, AUS |
| 8 |
Jenna
Forrester
|
AUS |
4:36.19 |
06/14 |
2025 Australian Swimming Trials
Oaklands Park, AUS |
| 9 |
Yu
Yiting
|
CHN |
4:36.63 |
03/20 |
2025 Chinese National Spring Swimming Championships
Qingdao, CHN |
| 10 |
Abbie
Wood
|
GBR |
4:36.66 |
04/16 |
AGB Swimming Championships 2025
London, GBR |
| 11 |
Freya
Colbert
|
GBR |
4:36.83 |
04/16 |
AGB Swimming Championships 2025
London, GBR |
| 12 |
Tara
Kinder
|
AUS |
4:37.14 |
04/22 |
2025 Australian Open Championships
Brisbane, AUS |
| 13 |
Katie
GRIMES
|
USA |
4:37.22 |
06/05 |
2025 Toyota National Championships
Indianapolis, USA |
| 14 |
Chang
Mohan
|
CHN |
4:37.33 |
05/24 |
2025 Chinese National Championship
Shenzhen, CHN |
| 15 |
Katie
Shanahan
|
GBR |
4:37.99 |
05/25 |
AP Race London International 2025
London, GBR |
| 16 |
Leah
HAYES
|
USA |
4:38.46 |
06/06 |
2025 Toyota National Championships
Indianapolis, USA |
| 17 |
Li
Bingjie
|
CHN |
4:38.66 |
05/24 |
2025 Chinese National Championship
Shenzhen, CHN |
| 18 |
WAKA
KOBORI
|
JPN |
4:39.14 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 19 |
Ella
JANSEN
|
CAN |
4:39.30 |
06/12 |
2025 Bell Canadian Swimming Trials
Victoria, CAN |
| 20 |
Sara
Franceschi
|
ITA |
4:40.28 |
05/25 |
2025 Mare Nostrum Swim Tour
Canet en Roussillon, FRA |
| 21 |
MISUZU
NAGAOKA
|
JPN |
4:40.31 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 22 |
Kayla
HAN
|
USA |
4:40.58 |
05/02 |
2025 TYR Pro Swim Series
Fort Lauderdale, USA |
| 23 |
Vivien
JACKL
|
HUN |
4:40.70 |
04/11 |
2025 Hungarian Swimming Championship
Kaposvar, HUN |
| 24 |
Anna
PIROVANO
|
ITA |
4:40.77 |
04/13 |
2025 Italian Swimming Championship
Riccione, ITA |
| 25 |
Emma
Carrasco Cadens
|
ESP |
4:40.93 |
05/25 |
2025 Mare Nostrum Swim Tour
Canet en Roussillon, FRA |
