| 1 |
Shaine
Casas
|
USA |
3:56.13 |
10/25 |
2025 World Aquatics Swimming World Cup
Toronto, CAN |
| 2 |
Carson
FOSTER
|
USA |
3:58.18 |
10/19 |
2025 World Aquatics Swimming World Cup
Westmont, USA |
| 3 |
Alberto
Razzetti
|
ITA |
3:58.79 |
12/07 |
2025 European Short Course Swimming Championships
Lublin, POL |
| 4 |
Kaito
Tatsumi
|
JPN |
4:00.59 |
10/18 |
67th Japanese Short Course Championships
Tokyo, JPN |
| 5 |
Raito
Numata
|
JPN |
4:00.93 |
10/18 |
67th Japanese Short Course Championships
Tokyo, JPN |
| 6 |
Tomoyuki
Matsushita
|
JPN |
4:01.82 |
10/12 |
2025 World Aquatics Swimming World Cup
Carmel, USA |
| 7 |
Max
Litchfield
|
GBR |
4:02.87 |
10/25 |
2025 World Aquatics Swimming World Cup
Toronto, CAN |
| 8 |
Brendon
SMITH
|
AUS |
4:03.10 |
10/25 |
2025 World Aquatics Swimming World Cup
Toronto, CAN |
| 9 |
Cedric
Bussing
|
GER |
4:03.51 |
12/07 |
2025 European Short Course Swimming Championships
Lublin, POL |
| 10 |
Lewis
Clareburt
|
NZL |
4:03.66 |
10/12 |
2025 World Aquatics Swimming World Cup
Carmel, USA |
| 11 |
Lucas
HENVEAUX
|
BEL |
4:03.89 |
12/07 |
2025 European Short Course Swimming Championships
Lublin, POL |
| 12 |
Jakub
Bursa
|
CZE |
4:04.68 |
12/07 |
2025 European Short Course Swimming Championships
Lublin, POL |
| 13 |
Diego
MIRA ALBALADEJO
|
ESP |
4:04.83 |
11/13 |
2025 Spanish Short Course Championships
Barcelona, ESP |
| 14 |
Maksim
Stupin
|
RUS |
4:04.91 |
11/11 |
2025 Russian SC Championship
Kazan, RUS |
| 15 |
Darius Stefan
Coman
|
ROU |
4:05.03 |
11/13 |
2025 Romanian SC Championship
Otopeni, ROU |
| 16 |
Thomas
Jansen
|
NED |
4:05.13 |
12/07 |
2025 European Short Course Swimming Championships
Lublin, POL |
| 17 |
Zalan
Sarkany
|
HUN |
4:06.30 |
12/07 |
2025 European Short Course Swimming Championships
Lublin, POL |
| 18 |
Eiichiro
Katayama
|
JPN |
4:06.55 |
10/18 |
67th Japanese Short Course Championships
Tokyo, JPN |
| 19 |
Tomoru
Honda
|
JPN |
4:06.95 |
01/11 |
2026 Tokyo New Year Swimming Championships
Tokyo, JPN |
| 20 |
David
Schlicht
|
AUS |
4:07.11 |
10/12 |
2025 World Aquatics Swimming World Cup
Carmel, USA |
| 21 |
Trenton
Julian
|
USA |
4:07.36 |
10/12 |
2025 World Aquatics Swimming World Cup
Carmel, USA |
| 22 |
Eduard
Valiakhmetov
|
RUS |
4:07.77 |
11/11 |
2025 Russian SC Championship
Kazan, RUS |
| 23 |
Samuel
Higgs
|
AUS |
4:08.19 |
10/03 |
2025 Australian Short Course Championships
Melbourne, AUS |
| 24 |
Gabor
ZOMBORI
|
HUN |
4:08.24 |
10/25 |
2025 World Aquatics Swimming World Cup
Toronto, CAN |
| 25 |
Misato
Miyazaki
|
JPN |
4:08.46 |
10/18 |
67th Japanese Short Course Championships
Tokyo, JPN |
