| 1 |
Summer
McIntosh
|
CAN |
WR 3:54.18 |
06/07 |
2025 Bell Canadian Swimming Trials
Victoria, CAN |
| 2 |
Katie
LEDECKY
|
USA |
3:56.81 |
05/01 |
2025 TYR Pro Swim Series
Fort Lauderdale, USA |
| 3 |
Li
BINGJIE
|
CHN |
3:58.21 |
07/27 |
2025 World Aquatics Championships
Singapore, SGP |
| 4 |
Lani
PALLISTER
|
AUS |
3:58.87 |
07/27 |
2025 World Aquatics Championships
Singapore, SGP |
| 5 |
Claire
Weinstein
|
USA |
4:00.05 |
06/07 |
2025 Toyota National Championships
Indianapolis, USA |
| 6 |
Yang
Peiqi
|
CHN |
4:02.53 |
05/17 |
2025 Chinese National Swimming Championship
Shenzhen, CHN |
| 7 |
Liu
Yaxin
|
CHN |
4:02.57 |
05/17 |
2025 Chinese National Swimming Championship
Shenzhen, CHN |
| 8 |
Isabel
GOSE
|
GER |
4:02.90 |
07/27 |
2025 World Aquatics Championships
Singapore, SGP |
| 9 |
Erika
Fairweather
|
NZL |
4:03.06 |
05/23 |
2025 New Zealand National Championship
Aukland, NZL |
| 10 |
Jamie
Perkins
|
AUS |
4:03.20 |
07/27 |
2025 World Aquatics Championships
Singapore, SGP |
| 11 |
Mary-Sophie
HARVEY
|
CAN |
4:05.42 |
05/10 |
2025 Giant Open
Saint Denis, FRA |
| 12 |
Ma
Yonghui
|
CHN |
4:05.75 |
05/17 |
2025 Chinese National Swimming Championship
Shenzhen, CHN |
| 13 |
Tiaoshan
YAN
|
CHN |
4:05.80 |
08/22 |
2025 World Aquatics Junior Swimming Championships\
Otopeni, ROU |
| 14 |
Maya
Werner
|
GER |
4:06.04 |
05/01 |
2025 German Swimming Championship
Berlin, GER |
| 15 |
Maria Fernanda
COSTA
|
BRA |
4:06.30 |
04/21 |
2025 Brazilian Swimming Championships
Rio de Janeiro, BRA |
| 16 |
Sofia
Dyakova
|
RUS |
4:06.50 |
04/16 |
2025 Russian National Championship
Kazan, RUS |
| 17 |
Gabrielle
RONCATTO
|
BRA |
4:06.53 |
04/21 |
2025 Brazilian Swimming Championships
Rio de Janeiro, BRA |
| 18 |
Kennedi
DOBSON
|
USA |
4:06.66 |
08/22 |
2025 World Aquatics Junior Swimming Championships\
Otopeni, ROU |
| 19 |
Amelia
WEBER
|
AUS |
4:06.78 |
06/09 |
2025 Australian Swimming Trials
Oaklands Park, AUS |
| 20 |
Agostina
Hein
|
ARG |
4:06.96 |
08/12 |
2025 Junior Pan American Games
Asuncion, PAR |
| 21 |
Simona
QUADARELLA
|
ITA |
4:07.00 |
05/21 |
2025 Mare Nostrum Swim Tour
Barcelona, ESP |
| 22 |
Sofia
Diakova
|
RUS |
4:07.06 |
07/06 |
2025 European Junior Swimming Championship
Samorin, SVK |
| 23 |
Bella
SIMS
|
USA |
4:07.11 |
06/07 |
2025 Toyota National Championships
Indianapolis, USA |
| 24 |
Molly
WALKER
|
AUS |
4:07.22 |
08/06 |
2025 US Summer Championships
Irvine, USA |
| 25 |
Jillian
Cox
|
USA |
4:07.34 |
05/15 |
Longhorn Aquatics Elite Invite
Austin, USA |
