Heats

Qualification: First 2 of each heat (Q) and the next 8 fastest (q) qualified for the semifinals.

Rank	Heat	Name	Nationality	Time	Notes
1	5	Yuzo Kanemaru	Japan	46.51	Q
2	4	Kacper Kozłowski	Poland	46.55	Q
3	4	Clay Watkins	Australia	46.56	Q
4	4	Hideyuki Hirose	Japan	46.65	q
5	6	Clemens Zeller	Austria	46.86	Q
6	4	Sibusiso Sishi	South Africa	47.01	q
7	6	Peter Znava	Slovakia	47.14	Q
8	1	Arnaud Ghislain	Belgium	47.16	Q
9	1	Nathan Vadeboncoeur	Canada	47.20	Q
10	5	Fayçal Cherifi	Algeria	47.25	Q
11	5	Artem Sergeenkov	Russia	47.26	q, SB
12	3	Nils Duerinck	Belgium	47.28	Q
13	2	Daniel Harper	Canada	47.32	Q
14	6	Aleksander Sigalovskiy	Russia	47.35	q, SB
15	8	Takeshi Fujiwara	El Salvador	47.40	Q
16	3	Pieter Smith	South Africa	47.47	Q
17	3	Miloud Rahmani	Algeria	47.48	q
18	2	Andrew Moore	New Zealand	47.52	Q
19	8	Joāo Ferreira	Portugal	47.56	Q
19	2	Marco Vistalli	Italy	47.56	q
21	8	Petr Szetei	Czech Republic	47.63	q, PB
22	8	Pantelis Melahrinoudis	Greece	47.66	q
23	6	Ali Ekber Kayaş	Turkey	47.68
24	8	Emmanuel Tugumisirize	Uganda	47.80	PB
25	5	You Cheng	China	47.93
26	2	Marouane El Madadi	Morocco	47.96
26	3	Jarosław Wasiak	Poland	47.96
28	7	Chris Troode	Australia	48.08	Q
29	1	Riis Jacob Fabricius	Denmark	48.16
30	4	Gary Robinson	Costa Rica	48.51	SB
31	2	Henri Sool	Estonia	48.53
32	5	Krasimir Braikov	Bulgaria	48.57
33	5	Miloš Simović	Serbia	48.67
34	1	Robert Muci	Serbia	48.75
35	7	Domenico Fontana	Italy	48.99	Q
36	7	Bernard Adams	Ghana	49.33
37	3	Ali Hazer	Lebanon	49.41
38	6	Chang Pengben	China	49.48
39	7	Muhammad Nabeel	Pakistan	49.60
40	2	Nejc Radojčič	Slovenia	49.85
41	6	Thapelo Ketlogetswe	Botswana	50.37
42	7	Aymar Oboba Fleury	Republic of the Congo	50.38
43	1	Boris Suslovski	Bosnia and Herzegovina	50.41
44	4	Stefan Bečanović	Montenegro	51.17
45	8	Hammam Al-Farsi	Oman	51.23
46	5	Stevan Kosorić	Bosnia and Herzegovina	51.31
47	8	Dritan Musta	Albania	52.47
48	1	Said Al-Katheri	Oman	55.15
49	6	Chan Chon In	Macau	55.24
50	3	Fahad Ahmadm Al-Furhood	Saudi Arabia	1:08.23
	2	Sulaiman Khalafs Al-Dowaighri	Saudi Arabia	DNF
	1	Dmitry Pedan	Kyrgyzstan	DNS
	4	Daniel Christensen	Denmark	DNS
	6	Charles Shaw	Liberia	DNS
	7	Bob Niamali	Democratic Republic of the Congo	DNS
	7	Ehsan Tahmasebi	Iran	DNS
	8	Adeleye Ogunmakinju	Nigeria	DNS

Semifinals

Qualification: First 2 of each semifinal (Q) and the next 2 fastest (q) qualified for the finals.

Rank	Heat	Name	Nationality	Time	Notes
1	2	Chris Troode	Australia	45.79	Q, SB
2	3	Clemens Zeller	Austria	46.33	Q
3	2	Kacper Kozłowski	Poland	46.40	Q
4	1	Yuzo Kanemaru	Japan	46.48	Q
5	2	Petr Szetei	Czech Republic	46.58	q, PB
6	3	Marco Vistalli	Italy	46.64	Q, PB
7	3	Arnaud Ghislain	Belgium	46.81	q
8	2	Hideyuki Hirose	Japan	46.84
9	1	Daniel Harper	Canada	46.93	Q
10	1	Sibusiso Sishi	South Africa	46.98
11	2	Nathan Vadeboncoeur	Canada	46.99
12	3	Clay Watkins	Australia	47.04
13	3	Peter Znava	Slovakia	47.18
14	2	Nils Duerinck	Belgium	47.24
15	3	Miloud Rahmani	Algeria	47.26
16	2	Andrew Moore	New Zealand	47.36
17	1	Takeshi Fujiwara	El Salvador	47.43
18	1	Domenico Fontana	Italy	47.45	PB
19	1	Artem Sergeenkov	Russia	47.61
20	1	Pantelis Melahrinoudis	Greece	47.64
21	3	Pieter Smith	South Africa	47.67
22	1	Fayçal Cherifi	Algeria	47.88
23	2	Aleksander Sigalovskiy	Russia	48.04
24	3	Joāo Ferreira	Portugal	48.22

Final

Rank	Lane	Name	Nationality	Time	Notes
	4	Yuzo Kanemaru	Japan	45.68
	5	Clemens Zeller	Austria	46.12	SB
	7	Daniel Harper	Canada	46.22	PB
4	3	Kacper Kozłowski	Poland	46.27
5	2	Petr Szetei	Czech Republic	46.84
6	1	Arnaud Ghislain	Belgium	47.15
	8	Marco Vistalli	Italy	DQ	[1]
	6	Chris Troode	Australia	DNS