| 1 |
Katie
LEDECKY
|
USA |
4:01.04 |
02/15 |
Southern Zone South Sectional Championships
Plantation, USA |
| 2 |
Yang
Peiqi
|
CHN |
4:05.17 |
03/22 |
2025 Chinese Spring National Championship
Qingdao, CHN |
| 3 |
Ichika
Kajimoto
|
JPN |
4:07.58 |
03/20 |
2025 Japan Swim
Tokyo, JPN |
| 4 |
Li
Jiapeng
|
CHN |
4:07.75 |
03/22 |
2025 Chinese Spring National Championship
Qingdao, CHN |
| 5 |
MIYU
NAMBA
|
JPN |
4:08.55 |
03/20 |
2025 Japan Swim
Tokyo, JPN |
| 6 |
Mary-Sophie
HARVEY
|
CAN |
4:08.67 |
03/06 |
2025 TYR Pro Swim Series
Westmont, USA |
| 7 |
Gabrielle
RONCATTO
|
BRA |
4:09.01 |
03/06 |
2025 TYR Pro Swim Series
Westmont, USA |
| 8 |
Simona
QUADARELLA
|
ITA |
4:09.24 |
03/22 |
2025 City of Livorno Meet
Livorno, ITA |
| 9 |
RUKA
TAKEZAWA
|
JPN |
4:09.27 |
01/26 |
2025 Kosuke Kitajima Cup
Tokyo, JPN |
| 10 |
KINUKO
MOCHIZUKI
|
JPN |
4:10.98 |
03/20 |
2025 Japan Swim
Tokyo, JPN |
| 11 |
Yan
Jiayi
|
CHN |
4:11.01 |
03/22 |
2025 Chinese Spring National Championship
Qingdao, CHN |
| 12 |
WAKA
KOBORI
|
JPN |
4:11.20 |
02/16 |
2025 Konami Open
Tokyo, JPN |
| 13 |
Maya
Werner
|
GER |
4:11.31 |
12/10 |
53rd CISM World Military Swimming Championship
Warendorf, GER |
| 14 |
Bianca
NANNUCCI
|
ITA |
4:11.55 |
03/22 |
2025 City of Livorno Meet
Livorno, ITA |
| 15 |
Noemi
CESARANO
|
ITA |
4:11.58 |
03/22 |
2025 City of Livorno Meet
Livorno, ITA |
| 16 |
Yu
Yiting
|
CHN |
4:11.67 |
03/22 |
2025 Chinese Spring National Championship
Qingdao, CHN |
| 16 |
Maria Fernanda
COSTA
|
BRA |
4:11.67 |
03/06 |
2025 TYR Pro Swim Series
Westmont, USA |
| 18 |
Hinano
Kuno
|
JPN |
4:11.88 |
03/20 |
2025 Japan Swim
Tokyo, JPN |
| 19 |
Nagao
Yoshinobu
|
JPN |
4:12.13 |
03/20 |
2025 Japan Swim
Tokyo, JPN |
| 19 |
Carla
CARRON MUIÑA
|
ESP |
4:12.13 |
03/05 |
2025 Spanish Spring Championships
Sabadell, ESP |
| 21 |
Sarah
Dumont
|
BEL |
4:12.27 |
03/05 |
2025 Spanish Spring Championships
Sabadell, ESP |
| 22 |
Rin
Matsuzaki
|
JPN |
4:12.26 |
03/20 |
2025 Japan Swim
Tokyo, JPN |
| 23 |
Saitama
Haimei
|
JPN |
4:12.45 |
02/16 |
2025 Konami Open
Tokyo, JPN |
| 24 |
Wang
Zengyue
|
CHN |
4:12.61 |
03/22 |
2025 Chinese Spring National Championship
Qingdao, CHN |
| 25 |
Antonietta
CESARANO
|
ITA |
4:13.35 |
03/22 |
2025 City of Livorno Meet
Livorno, ITA |
