| 1 |
Noe
PONTI
|
SUI |
50.67 |
03/21 |
2025 City of Livorno Meet
Livorno, ITA |
| 2 |
Shaine
Casas
|
USA |
50.82 |
03/08 |
2025 TYR Pro Swim Series
Westmont, USA |
| 3 |
KATSUHIRO
MATSUMOTO
|
JPN |
51.10 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 4 |
Naoki
Mizunuma
|
JPN |
51.47 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 5 |
GENKI
TERAKADO
|
JPN |
51.64 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 6 |
Gomi
Tomonobu
|
JPN |
51.69 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 7 |
Matthew
TEMPLE
|
AUS |
51.74 |
03/23 |
2025 NSW State Open Championships
Sydney, AUS |
| 8 |
Kim
Young-beom
|
KOR |
51.77 |
03/27 |
KB Financial Korea Swimming Championship
Gimcheon, KOR |
| 8 |
Nyls
KORSTANJE
|
NED |
51.77 |
03/16 |
Edinburgh International 2025
Edinburgh, GBR |
| 10 |
Fang
Xu
|
CHN |
51.95 |
12/16 |
2024 Queensland Championships
Brisbane, AUS |
| 11 |
Kim
Youngbeom
|
KOR |
51.97 |
03/23 |
2025 Korean Swimming Championship
Gimcheon, South Korea |
| 12 |
Luca
ARMBRUSTER
|
GER |
52.05 |
02/01 |
25th CMCM Euro Meet 2025
Luxembourg, LUX |
| 13 |
Sun
Jiajun
|
CHN |
52.08 |
03/18 |
2025 Chinese National Spring Swimming Championships
Qingdao, CHN |
| 14 |
Rio
Kitagawa
|
JPN |
52.11 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 15 |
Ksawery
Masiuk
|
POL |
52.18 |
03/15 |
PGE Grand Prix Puchar Polski
Oświęcim, POL |
| 16 |
Chen
Juner
|
CHN |
52.26 |
03/18 |
2025 Chinese National Spring Swimming Championships
Qingdao, CHN |
| 16 |
Roman
SHEVLYAKOV
|
RUS |
52.26 |
02/19 |
2025 Russian Swimming Cup
Kaliningrad, RUS |
| 18 |
Shen
Jiahao
|
CHN |
52.30 |
03/18 |
2025 Chinese National Spring Swimming Championships
Qingdao, CHN |
| 19 |
Narushima
Yoshinori
|
JPN |
52.31 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 20 |
YUYA
SAKAMOTO
|
JPN |
52.38 |
12/01 |
2024 Japan Open
Tokyo, JPN |
| 21 |
Jesse
Coleman
|
AUS |
52.39 |
03/16 |
2025 Speedo National Preparation Meet
Brisbane AUS |
| 21 |
Yuya
Sakamoto
|
JPN |
52.39 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 23 |
Jakub
Majerski
|
POL |
52.40 |
03/15 |
PGE Grand Prix Puchar Polski
Oświęcim, POL |
| 24 |
Shoto
Mitsunaga
|
JPN |
52.42 |
03/23 |
2025 Japan Swim
Tokyo, JPN |
| 25 |
Clement
SECCHI
|
FRA |
52.45 |
03/16 |
Edinburgh International 2025
Edinburgh, GBR |
