[ 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 ]

Ciocco (Italy), 28th February - 2nd April 1977 name Elo flag pts 1 2 3 4 5 6 7 8 9 10 11 12 ⇑ GM Kortschnoj, Viktor 2645 6½ ½ ½ ½ ½ 1 0 ½ 1 ½ ½ ½ ½ GM Petrosian, Tigran 2645 5½ ½ ½ ½ ½ 0 1 ½ 0 ½ ½ ½ ½

Luzern (Switzerland), 26th February - 2nd April 1977 name Elo flag pts 1 2 3 4 5 6 7 8 9 10 11 12 ⇑ GM Polugaevsky, Lev 2620 6½ ½ 1 ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ GM Mecking, Henrique 2635 5½ ½ 0 ½ ½ ½ ½ ½ ½ ½ ½ ½ ½

Rotterdam (Netherlands), 26th February - 26th March 1977 name Elo flag pts 1 2 3 4 5 6 7 8 9 10 GM Larsen, Bent 2615 3½ 0 ½ 1 0 ½ 0 1 0 ½ 0 ⇑ GM Portisch, Lajos 2625 6½ 1 ½ 0 1 ½ 1 0 1 ½ 1

Reykjavik (Iceland), 27th February - 19th April 1977 name Elo flag pts 1 2 3 4 5 6 7 8 9 10 11 12 P1.1 P1.2 P2.1 P2.2 ⇑ GM Spassky, Boris 2610 8½ ½ ½ 1 ½ ½ ½ ½ ½ ½ 0 ½ ½ ½ ½ 1 ½ GM Hort, Vlastimil 2620 7½ ½ ½ 0 ½ ½ ½ ½ ½ ½ 1 ½ ½ ½ ½ 0 ½

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