1988 World Junior Championships in Athletics – Men's 400 metres explained

The men's 400 metres event at the 1988 World Junior Championships in Athletics was held in Sudbury, Ontario, Canada, at Laurentian University Stadium on 27, 28 and 29 July.

Medalists

Gold	Tomasz Jędrusik
Silver	Steve Perry
Bronze	Anthony Eziuka

Results

Final

29 July

Rank	Name	Nationality	Time	Notes
	align=left		align=left		46.19
	align=left		align=left		46.74
	align=left		align=left		46.81
4	align=left		align=left		46.94
5	align=left		align=left		47.08
6	align=left		align=left		47.22
7	align=left		align=left		47.28
8	align=left		align=left		47.48

Semifinals

28 July

Semifinal 1

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		46.21	Q
2	align=left		align=left		46.43	Q
3	align=left		align=left		46.66	q
4	align=left		align=left		46.89
5	align=left		align=left		47.56
6	align=left		align=left		48.17
	align=left		align=left		DQ
	align=left		align=left		DQ

Semifinal 2

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		46.29	Q
2	align=left		align=left		46.32	Q
3	align=left		align=left		46.86	q
4	align=left		align=left		47.30
5	align=left		align=left		47.70
6	align=left		align=left		48.74
7	align=left		align=left		49.82
	align=left		align=left		DQ

Semifinal 3

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		46.16	Q
2	align=left		align=left		46.71	Q
3	align=left		align=left		47.29
4	align=left		align=left		47.47
5	align=left		align=left		47.62
6	align=left		align=left		47.68
7	align=left		align=left		49.26
8	align=left		align=left		49.93

Heats

27 July

Heat 1

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		47.18	Q
2	align=left		align=left		47.43	Q
3	align=left		align=left		47.64	Q
4	align=left		align=left		48.02	q
5	align=left		align=left		48.30
6	align=left		align=left		49.33
	align=left		align=left		DQ

Heat 2

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		46.54	Q
2	align=left		align=left		46.63	Q
3	align=left		align=left		47.43	Q
4	align=left		align=left		47.70	q
5	align=left		align=left		48.24
6	align=left		align=left		49.97
7	align=left		align=left		50.17
8	align=left		align=left		50.19

Heat 3

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		46.88	Q
2	align=left		align=left		47.20	Q
3	align=left		align=left		47.49	Q
4	align=left		align=left		47.73	q
5	align=left		align=left		48.65
6	align=left		align=left		49.00
7	align=left		align=left		50.71
8	align=left		align=left		51.10

Heat 4

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		47.08	Q
2	align=left		align=left		47.49	Q
3	align=left		align=left		47.63	Q
4	align=left		align=left		48.29
5	align=left		align=left		48.54
	align=left		align=left		DNF

Heat 5

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		47.29	Q
2	align=left		align=left		47.34	Q
3	align=left		align=left		47.92	Q
4	align=left		align=left		48.10
5	align=left		align=left		48.23
6	align=left		align=left		52.60

Heat 6

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		46.79	Q
2	align=left		align=left		48.05	Q
3	align=left		align=left		49.12	Q
4	align=left		align=left		50.68
	align=left		align=left		DQ

Heat 7

Rank	Name	Nationality	Time	Notes
1	align=left		align=left		46.50	Q
2	align=left		align=left		47.58	Q
3	align=left		align=left		48.02	Q
4	align=left		align=left		48.15
5	align=left		align=left		48.63
6	align=left		align=left		48.74

Participation

According to an unofficial count, 46 athletes from 33 countries participated in the event.