400 Metres Summary | World Athletics U20 Championships

First 2 (Q) and fastest 2 (q) advance to the Final

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS	ms*
1	1	1	439	Luis AVILÉS FERREIRO	MEX	45.63 Q NU20R
2	1	2	144	Anthony PESELA	BOT	45.88 Q PB
3	2	2	519	Antonie Matthys NORTJE	RSA	46.27 Q PB
4	2	1	345	Lorenzo BENATI	ITA	46.28 Q
5	3	1	611	Muzala SAMUKONGA	ZAM	46.45 q
6	4	1	174	Michael ROTH	CAN	46.51 q PB
7	1	3	522	Lythe PILLAY	RSA	46.55 Q
8	3	2	391	Elkanah Kiprotich CHEMELILI	KEN	46.79 PB
9	2	3	392	Kennedy Kimeu MUTHOKI	KEN	47.05 Q SB
10	4	2	609	David MULENGA	ZAM	47.16
11	3	3	139	Raman VALODZKIN	BLR	47.17
12	4	3	449	Bamidele AJAYI	NGR	47.44
13	5	3	298	Revon WILLIAMS	GUY	47.50	.500
13	5	2	450	Dubem AMENE	NGR	47.50	.500
15	6	3	418	Anbar Jamaan ALZAHRANI	KSA	47.51
16	7	3	375	Tahj HAMM	JAM	47.73	.730
16	5	1	506	Remus Andrei NICULITA	ROU	47.73	.730
18	6	2	470	Patryk GRZEGORZEWICZ	POL	47.80
19	6	1	212	Tadeáš PLAČEK	CZE	47.87
20	7	2	553	Isuru BANS	SRI	48.02
21	8	2	503	Adrian BONDOC	ROU	48.29
22	7	1	159	Vinícius MOURA	BRA	49.59
23	8	3	543	Mohamed Basiru BAH	SLE	49.82 PB
		1	369	Jeremy BEMBRIDGE	JAM	DNF