400 metres Hurdles, Men – Semi-Finals

Date	25 July 1980 — 17:10
Location	Bolshaya arena, Tsentralny stadion imeni V.I. Lenina, Moskva
Format	Top 3 in each heat and next 2 fastest advanced to the final round.

Pos	Number	Competitor	NOC	Time (automatic)
1	689	Vasily Arkhipenko	URS	49.80	Q
2	742	Nikolay Vasilyev	URS	49.87	Q
3	277	Gary Oakes	GBR	50.07	Q
4	615	Franz Meier	SUI	50.12	q
5	85	Yanko Bratanov	BUL	50.17	q
6	293	Volker Beck	GDR	50.36	Q
7	552	Ryszard Szparak	POL	50.41
8	758	Rok Kopitar	YUG	50.55	Q
9	571	Horia Toboc	ROU	50.58	Q
10	361	Harry Schulting	NED	50.61
11	706	Aleksandr Kharlov	URS	50.64
12	386	József Szalai	HUN	51.06
13	678	John Akii-Bua	UGA	51.10
14	155	Juan Lloveras	ESP	51.86
15	76	Antônio Ferreira	BRA	52.31
DNS	623	Christer Gullstrand	SWE	–

Pos	Number	Competitor	NOC	Time (Automatic)
1	293	Volker Beck	GDR	50.36	Q
2	758	Rok Kopitar	YUG	50.55	Q
3	571	Horia Toboc	ROU	50.58	Q
4	361	Harry Schulting	NED	50.61
5	706	Aleksandr Kharlov	URS	50.64
6	386	József Szalai	HUN	51.06
7	76	Antônio Ferreira	BRA	52.31
DNS	623	Christer Gullstrand	SWE	–

Pos	Number	Competitor	NOC	Time (Automatic)
1	689	Vasily Arkhipenko	URS	49.80	Q
2	742	Nikolay Vasilyev	URS	49.87	Q
3	277	Gary Oakes	GBR	50.07	Q
4	615	Franz Meier	SUI	50.12	q
5	85	Yanko Bratanov	BUL	50.17	q
6	552	Ryszard Szparak	POL	50.41
7	678	John Akii-Bua	UGA	51.10
8	155	Juan Lloveras	ESP	51.86