2018 IAAF World U20 Championships – Men's 400 metres hurdles

Men's 400 metres hurdles at the 2018 World U20 Championships
Venue	Ratina Stadium
Dates	12, 13 and 14 July
Competitors	42 from 31 nations
Winning time	49.42
Medalists
Sokwakhana Zazini    South Africa   Bassem Hemeida    Qatar   Alison Santos    Brazil
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Events at the 2018 World Championships
Track events
100 m	men	women
200 m	men	women
400 m	men	women
800 m	men	women
1500 m	men	women
3000 m		women
5000 m	men	women
10,000 m	men
100 m hurdles		women
110 m hurdles	men
400 m hurdles	men	women
3000 m steeplechase	men	women
4 × 100 m relay	men	women
4 × 400 m relay	men	women
10000 m walk	men	women
Field events
High jump	men	women
Pole vault	men	women
Long jump	men	women
Triple jump	men	women
Shot put	men	women
Discus throw	men	women
Hammer throw	men	women
Javelin throw	men	women
Combined events
Heptathlon		women
Decathlon	men
v t

The men's 400 metres hurdles at the 2018 IAAF World U20 Championships was held at Ratina Stadium on 12, 13 and 14 July.^[1]

Records[]

Standing records prior to the 2021 World Athletics U20 Championships
World U20 Record	Danny Harris (USA)	48.02	Los Angeles, United States	17 June 1984
Championship Record	Kerron Clement (USA)	48.51	Grosseto, Italy	16 July 2004
World U20 Leading	(RSA)	49.32	Pretoria, South Africa	17 March 2018

Results[]

Heats[]

Qualification: First 3 of each heat (Q) and the 6 fastest times (q) qualified for the semifinals.^[2]

Rank	Heat	Name	Nationality	Time	Note
1	4		Kenya	50.87	Q, PB
2	3		Barbados	51.02	Q, SB
3	4	Alison dos Santos	Brazil	51.08	Q
4	2	Alastair Chalmers	United Kingdom	51.16	Q
5	5	Sokwakhana Zazini	South Africa	51.21	Q
6	5	Alex Knibbs	United Kingdom	51.29	Q
7	4	Carl Bengtström	Sweden	51.35	Q
8	4		Greece	51.39	q, PB
9	6		Jamaica	51.54	Q
10	2	Alessandro Sibilio	Italy	51.59	Q SB
11	2		Switzerland	51.64	Q, PB
12	3	Leonardo Ledgister	Jamaica	51.65	Q
13	3		United States	51.75	Q
14	3		Spain	51.83	q
15	2	Ramsey Angela	Netherlands	51.95	q
16	4		Barbados	52.02	q, PB
17	6		Japan	52.09	Q
18	1		United States	52.12	Q
19	5		Spain	52.13	Q
20	4	Mahdi Pirjahan	Iran	52.18	q
21	3		Morocco	52.24	q
22	1	Bassem Hemeida	Qatar	52.35	Q
23	1		South Africa	52.35	Q
24	6		Haiti	52.38	Q
25	1		Japan	52.48
26	5		Ethiopia	52.59
27	6		Italy	52.60
28	5		Germany	52.70
29	1		Estonia	52.80
30	6		China	52.82	PB
31	2		Kenya	52.88
32	3		Australia	53.02
33	2		Hungary	53.13
34	3		Finland	53.21	PB
35	5		Argentina	53.43
36	5		Tunisia	53.71
37	4		Canada	53.85
38	1		Sweden	54.82
39	1		Bahamas	1:08.85
	2		Mexico	DNF
	6		Zimbabwe	DQ
	6		Germany	DQ

Semifinals[]

Qualification: First 2 of each heat (Q) and the 2 fastest times (q) qualified for the final.^[3]

Rank	Heat	Name	Nationality	Time	Note
1	3	Sokwakhana Zazini	South Africa	49.43	Q
2	3	Alastair Chalmers	United Kingdom	50.11	Q, NJR
3	3	Leonardo Ledgister	Jamaica	50.13	q, PB
4	2		Jamaica	50.34	Q
5	3	Alessandro Sibilio	Italy	50.73	q, SB
6	3		United States	50.86
7	1	Alison dos Santos	Brazil	50.90	Q
8	2	Mahdi Pirjahan	Iran	50.98	Q, NJR
9	2	Alex Knibbs	United Kingdom	50.99
10	2		Barbados	51.02	SB
11	1	Bassem Hemeida	Qatar	51.14	Q
12	2		Japan	51.21
13	2		South Africa	51.26
14	1		United States	51.27
15	1	Carl Bengtström	Sweden	51.55
16	2		Switzerland	51.83
17	1		Kenya	51.94
18	3	Ramsey Angela	Netherlands	51.99
19	3		Spain	52.18
20	1		Greece	52.38
21	1		Haiti	54.45
22	3		Barbados	54.58
	1		Morocco	DQ
	2		Spain	DNS

Final[]

^[4]

Rank	Lane	Name	Nationality	Time	Note
	4	Sokwakhana Zazini	South Africa	49.42
	7	Bassem Hemeida	Qatar	49.59	PB
	6	Alison dos Santos	Brazil	49.78	PB
4	2	Leonardo Ledgister	Jamaica	49.93	PB
5	3		Jamaica	50.25
6	5	Alastair Chalmers	United Kingdom	50.27
7	8	Mahdi Pirjahan	Iran	51.15
8	1	Alessandro Sibilio	Italy	52.38

References[]