400 m Freestyle, Men

Competition 2025 World Aquatics Championships
Venue Singapore SGP
Held 27 July 2025
Status Medal
Competitors 43
Countries 37
Pos Athlete(s) Country Preliminary Round Final
🥇 Lukas Märtens GER 3:43.81
(1 h5)		 3:42.35
(1 F)
🥈 Samuel Short AUS 3:42.07
(1 h4)		 3:42.37
(2 F)
🥉 Kim U-Min KOR 3:44.99
(2 h4)		 3:42.60
(3 F)
4 Victor Johansson SWE 3:45.26
(3 h5)		 3:44.68
(4 F)
5 Zhang Zhanshuo CHN 3:45.04
(2 h5)		 3:44.82
(5 F)
6 Marco De Tullio ITA 3:45.88
(4 h5)		 3:44.92
(6 F)
7 Petar Mitsin BUL 3:45.01
(1 h3)		 3:45.28
(7 F)
8 Oliver Klemet GER 3:45.72
(3 h4)		 3:46.86
(8 F)
9 Ethan Ekk CAN 3:46.01
(2 h3)		 —
10 Elijah Winnington AUS 3:46.37
(5 h5)		 —
11 Rex Maurer USA 3:46.38
(6 h5)		 —
12 Lucas Henveaux BEL 3:46.68
(4 h4)		 —
13 Zalán Sárkány HUN 3:46.82
(7 h5)		 —
14 Jack McMillan GBR 3:47.28
(3 h3)		 —
15 Krzysztof Chmielewski POL 3:47.55
(4 h3)		 —
16 Daniel Wiffen IRL 3:47.57
(8 h5)		 —
17 Dimitrios Markos GRE 3:47.59
(5 h4)		 —
18 Stephan Steverink BRA 3:47.93
(6 h4)		 —
19 Kazushi Imafuku JPN 3:48.69
(5 h3)		 —
20 Ilya Sibirtsev UZB 3:48.75
(6 h3)		 —
21 Kristóf Rasovszky HUN 3:48.84
(7 h4)		 —
22 Guilherme Costa BRA 3:48.94
(9 h5)		 —
23 David Aubry FRA 3:49.13
(8 h4)		 —
24 Antonio Djakovic SUI 3:49.14
(9 h4)		 —
25 Fei Liwei CHN 3:49.68
(10 h4)		 —
26 Sašo Boškan SLO 3:49.86
(7 h3)		 —
27 Yoav Romano ISR 3:51.01
(8 h3)		 —
28 Khiew Hoe Yean MAS 3:51.11
(9 h3)		 —
29 Juan Morales COL 3:51.24
(10 h3)		 —
30 Kristupas Trepočka LTU 3:51.34
(1 h2)		 —
=31 Milan Vojtko SVK 3:51.97
(=2 h2)		 —
=31 Glen Lim SGP 3:54.97
(=2 h2)		 —
33 Marin Mogić CRO 3:56.15
(4 h2)		 —
34 Gian Santos PHI 3:57.86
(5 h2)		 —
35 Kevin Teixeira AND 3:59.00
(6 h2)		 —
36 Luka Mijatovic USA 3:59.68
(10 h5)		 —
37 Aryan Nehra IND 4:00.39
(7 h2)		 —
38 Süleyman İsmayılzadə AZE 4:01.33
(8 h2)		 —
39 Matthew Caldwell RSA 4:01.45
(9 h2)		 —
40 Alberto Vega CRC 4:06.17
(10 h2)		 —
41 Xavier Ventura ESA 4:07.60
(1 h1)		 —
42 Vladimir Hernández CUB 4:11.70
(2 h1)		 —
43 Binura Thalagala SRI 4:16.80
(3 h1)		 —

Preliminary Round

Heat 1

Pos Athlete(s) Country Mark
1 Xavier Ventura ESA 4:07.60
2 Vladimir Hernández CUB 4:11.70
3 Binura Thalagala SRI 4:16.80

Heat 2

Pos Athlete(s) Country Mark
1 Kristupas Trepočka LTU 3:51.34
=2 Milan Vojtko SVK 3:51.97
=2 Glen Lim SGP 3:54.97
4 Marin Mogić CRO 3:56.15
5 Gian Santos PHI 3:57.86
6 Kevin Teixeira AND 3:59.00
7 Aryan Nehra IND 4:00.39
8 Süleyman İsmayılzadə AZE 4:01.33
9 Matthew Caldwell RSA 4:01.45
10 Alberto Vega CRC 4:06.17

Heat 3

Pos Athlete(s) Country Mark
1 Petar Mitsin BUL 3:45.01
2 Ethan Ekk CAN 3:46.01
3 Jack McMillan GBR 3:47.28
4 Krzysztof Chmielewski POL 3:47.55
5 Kazushi Imafuku JPN 3:48.69
6 Ilya Sibirtsev UZB 3:48.75
7 Sašo Boškan SLO 3:49.86
8 Yoav Romano ISR 3:51.01
9 Khiew Hoe Yean MAS 3:51.11
10 Juan Morales COL 3:51.24

Heat 4

Pos Athlete(s) Country Mark
1 Samuel Short AUS 3:42.07
2 Kim U-Min KOR 3:44.99
3 Oliver Klemet GER 3:45.72
4 Lucas Henveaux BEL 3:46.68
5 Dimitrios Markos GRE 3:47.59
6 Stephan Steverink BRA 3:47.93
7 Kristóf Rasovszky HUN 3:48.84
8 David Aubry FRA 3:49.13
9 Antonio Djakovic SUI 3:49.14
10 Fei Liwei CHN 3:49.68

Heat 5

Pos Athlete(s) Country Mark
1 Lukas Märtens GER 3:43.81
2 Zhang Zhanshuo CHN 3:45.04
3 Victor Johansson SWE 3:45.26
4 Marco De Tullio ITA 3:45.88
5 Elijah Winnington AUS 3:46.37
6 Rex Maurer USA 3:46.38
7 Zalán Sárkány HUN 3:46.82
8 Daniel Wiffen IRL 3:47.57
9 Guilherme Costa BRA 3:48.94
10 Luka Mijatovic USA 3:59.68

Final

Pos Athlete(s) Country Mark
1 Lukas Märtens GER 3:42.35
2 Samuel Short AUS 3:42.37
3 Kim U-Min KOR 3:42.60
4 Victor Johansson SWE 3:44.68
5 Zhang Zhanshuo CHN 3:44.82
6 Marco De Tullio ITA 3:44.92
7 Petar Mitsin BUL 3:45.28
8 Oliver Klemet GER 3:46.86