400 Metres Summary | World Athletics U20 Championships

First 4 of each heat (Q) plus 4 fastest times (q) qualify to Semi-Final

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS	ms*
1	1	2	1852	Lythe PILLAY	RSA	46.02 Q SB
2	2	2	1299	Yusuf Ali ABBAS	BRN	46.21 Q
3	3	2	1648	Delano KENNEDY	JAM	46.24 Q PB
4	1	4	1986	Steven MCELROY	USA	46.38 Q
5	1	3	1369	Tadeáš PLAČEK	CZE	46.56 Q PB
6	1	1	1411	Ángel GONZÁLEZ	ESP	46.65 Q
7	2	3	1659	Shaemar UTER	JAM	46.66 Q
8	1	5	1682	Masataka TOMODA	JPN	46.68 Q
9	4	2	1689	Elkanah Kiprotich CHEMELILI	KEN	46.69 Q
10	5	2	1326	Martin KOUYOUMDJIAN	CHI	46.75 q PB
11	2	5	1995	Ashton SCHWARTZMAN	USA	46.76 Q
12	2	4	1319	Christopher MORALES-WILLIAMS	CAN	46.81 Q
13	3	4	1772	Andreas GRIMERUD	NOR	46.85 Q
14	3	3	1408	Markel FERNANDEZ	ESP	46.87 Q
15	2	1	1270	Busang Collen KEBINATSHIPI	BOT	46.89 Q
16	4	4	1859	Tjaart VAN DER WALT	RSA	47.00 Q
17	3	1	1293	Vinícius MOURA	BRA	47.02 Q
18	3	5	1924	Joshua ATKINSON	THA	47.03 Q
19	4	3	1663	Shion ARITA	JPN	47.10 Q	.092
20	4	1	1314	Tyler FLOYD	CAN	47.10 Q	.094
21	4	5	1350	Marko OREŠKOVIĆ	CRO	47.12 Q PB
22	6	2	1241	Cooper SHERMAN	AUS	47.16 q PB
23	5	5	1515	Lukas KRAPPE	GER	47.25 q PB
24	5	1	1717	Lukas SUTKUS	LTU	47.39 q PB
25	6	5	1836	Denis Simon TOMA	ROU	47.64
26	6	1	1758	Bamidele AJAYI	NGR	47.67
27	5	4	1364	Michal HAIDELMEIER	CZE	47.70
28	7	1	1834	Remus Andrei NICULITA	ROU	47.80
29	5	3	1962	Emmanuel RWOTOMIYA	UGA	47.86
30	7	5	1632	Luca SITO	ITA	48.03
31	7	2	2013	Amal GLASGOW	VIN	48.26
32	6	3	1787	Lex REVELL-LEWIS	NZL	48.66
33	6	4	1269	Tumiso GABONAMONG	BOT	48.72
34	7	3	1296	Joao Henrrique RIBEIRO BARROS	BRA	48.73
		4	2019	Joshua MPANZA	ZAM	DQ