| 1 |
Summer
MCINTOSH
|
CAN |
4:28.13 |
01/16 |
2026 USA Swimming Pro Swim Series
Austin, USA |
| 2 |
Yu
Zidi
|
CHN |
4:33.33 |
03/21 |
2026 China Swimming Open
Shenzhen, CHN |
| 3 |
Mary-Sophie
Harvey
|
CAN |
4:34.29 |
05/28 |
2026 Mare Nostrum Swim Tour
Canet en Roussillon, FRA |
| 4 |
Chang
Mohan
|
CHN |
4:34.59 |
11/17 |
2025 Chinese National Games
Shenzhen, CHN |
| 5 |
Ke
Wenxi
|
CHN |
4:34.91 |
03/21 |
2026 China Swimming Open
Shenzhen, CHN |
| 6 |
Amalie
SMITH
|
GBR |
4:35.18 |
05/24 |
AP Race London International 2026
London, GBR |
| 7 |
Emma
Weyant
|
USA |
4:35.23 |
05/01 |
2026 Speedo Fort Lauderdale Open
Fort Lauderdale, USA |
| 8 |
Jenna
FORRESTER
|
AUS |
4:35.40 |
04/06 |
2026 Australian Open
Gold Coast, AUS |
| 9 |
Agostina
HEIN
|
ARG |
4:35.62 |
05/31 |
2026 Mare Nostrum Swim Tour
Barcelona, ESP |
| 10 |
Mio
Narita
|
JPN |
4:35.66 |
09/04 |
2025 Intercollege Swimming Championship
Tokyo, JPN |
| 11 |
Regan
Smith
|
USA |
4:35.79 |
03/05 |
2026 TYR Pro Swim Series
Westmont, USA |
| 12 |
Yu
Yiting
|
CHN |
4:37.06 |
03/21 |
2026 China Swimming Open
Shenzhen, CHN |
| 13 |
Audrey
Derivaux
|
USA |
4:37.27 |
05/24 |
AP Race London International 2026
London, GBR |
| 14 |
Tara
Kinder
|
AUS |
4:37.72 |
04/06 |
2026 Australian Open
Gold Coast, AUS |
| 15 |
Waka
KOBORI
|
JPN |
4:37.83 |
03/22 |
2026 Japan Swim
Tokyo, JPN |
| 16 |
Shiki
Takahashi
|
JPN |
4:38.08 |
09/14 |
79th National Sports Festival
Shiga, JPN |
| 17 |
Alba
VAZQUEZ RUIZ
|
ESP |
4:38.16 |
03/13 |
XXVI Cto. España Absoluto "OPEN"
Sabadell, ESP |
| 18 |
Victoria
Blinova
|
RUS |
4:38.44 |
04/21 |
2026 Russian Swimming Cup
Saint Petersburg, RUS |
| 19 |
Li
Bingjie
|
CHN |
4:38.65 |
11/17 |
2025 Chinese National Games
Shenzhen, CHN |
| 19 |
Ayane
Suzuki
|
JPN |
4:38.65 |
09/04 |
2025 Intercollege Swimming Championship
Tokyo, JPN |
| 21 |
Mao
Yihan
|
CHN |
4:38.68 |
11/17 |
2025 Chinese National Games
Shenzhen, CHN |
| 22 |
Ellen
Walshe
|
IRL |
4:39.01 |
02/08 |
2026 Dubai Open
Dubai, UAE |
| 23 |
Emma
Carrasco
|
ESP |
4:39.77 |
05/28 |
2026 Mare Nostrum Swim Tour
Canet en Roussillon, FRA |
| 24 |
Sadie
Buckley
|
USA |
4:39.79 |
05/01 |
2026 Speedo Fort Lauderdale Open
Fort Lauderdale, USA |
| 25 |
Justina
KOZAN
|
POL |
4:40.06 |
04/11 |
2026 CA RMDA Metro Committee April LC Meet
La Mirada, USA |
