FIDE World Chess Championship cycle 1975-1978

[ Competition summary || European zonal A | European zonal B1 | European zonal B2 | European zonal C | European zonal D | Soviet zonal | US zonal | Canadian zonal |
| Caribbean-Central American zonal 1 | Caribbean-Central American zonal 2 | South American zonal | West Asian zonal | Asian Pacific zonal | Mediterranean-African zonal ||
|| Biel interzonal | Manila interzonal || Candidates QF | Candidates SF | Candidates F || WCh match ]

US Zonal