| West Midlands Zonal· Feb 6 – May 13, 1977 | Feb 6 – May 13, 1977 | Classical | 6 | 2226 | 5 |
Varna Varna BUL· May 13, 1977 | May 13, 1977 | Classical | 9 | 2408 | 6 |
| BalashihaBalashiha· Apr 29 – May 12, 1977 | Apr 29 – May 12, 1977 | Classical | 11 | 2417 | 11 |
Ottawa Ch Ottawa CAN· Feb 24 – May 5, 1977 | Feb 24 – May 5, 1977 | Classical | 6 | 2147 | 7 |
Sao Paulo it Sao Paulo BRA· 1977 | 1977 | Classical | 6 | 2404 | 5 |
AZE Ch Baku AZE· 1977 | 1977 | Classical | 7 | 2281 | 6 |
| Chess Set InvintationalHollywood, CA· 1977 | 1977 | Classical | 9 | 2303 | 8 |
It Sao Paulo BRA· 1977 | 1977 | Classical | 7 | 2326 | 5 |
| Cienfuegos Cienfuegos City CUBCienfuegos Cienfuegos City CU· 1977 | 1977 | Classical | 14 | 2347 | 17 |
Sao Paulo Sao Paulo BRA Sao Paulo Sao Paulo BRA· 1977 | 1977 | Classical | 14 | 2351 | 29 |
Sao Paulo Sao Paulo BRA· 1977 | 1977 | Classical | 18 | 2360 | 59 |
Dortmund Dortmund GER· 1977 | 1977 | Classical | 17 | 2404 | 68 |
| 1. Division 1976-1977· Mar 6 – Apr 24, 1977 | Mar 6 – Apr 24, 1977 | Classical | 16 | 2205 | 11 |
Ottawa Ottawa CAN· Mar 3 – Apr 21, 1977 | Mar 3 – Apr 21, 1977 | Classical | 7 | 2174 | 6 |
Birmingham GM Tournament Birmingham ENG· Apr 8 – 17, 1977 | Apr 8 – 17, 1977 | Classical | 7 | 2345 | 6 |
Midland Open Championship Birmingham ENG· Apr 5 – 17, 1977 | Apr 5 – 17, 1977 | Classical | 28 | 1818 | 27 |
Walbrook International Birmingham ENG· Apr 6 – 17, 1977 | Apr 6 – 17, 1977 | Classical | 11 | 2368 | 12 |
CAN Ch U20 1977 Montreal CAN· Apr 8 – 14, 1977 | Apr 8 – 14, 1977 | Classical | 10 | 2055 | 32 |
| Toronto OpenToronto Open· Apr 8 – 10, 1977 | Apr 8 – 10, 1977 | Classical | 7 | 1951 | 6 |
| DenmarkDenmark· Apr 8, 1977 | Apr 8, 1977 | Classical | 27 | 2198 | 24 |
Birmingham Open Birmingham ENG· Apr 2 – 3, 1977 | Apr 2 – 3, 1977 | Classical | 7 | 1958 | 6 |
Burnaby Open Burnaby CAN· Apr 3, 1977 | Apr 3, 1977 | Classical | 7 | 1842 | 5 |
Moskou etc Moscow RUS· 1977 | 1977 | Classical | 35 | 2517 | 36 |
Paderborn Paderborn GER· 1977 | 1977 | Classical | 8 | 2183 | 7 |
| URS· 1977 | 1977 | Classical | 14 | 2271 | 7 |
| WECU-ch32Cheltenham· 1977 | 1977 | Classical | 18 | 1966 | 15 |
Pretoria Pretoria RSA· 1977 | 1977 | Classical | 12 | 2140 | 14 |
EU Team Ch Moscow RUS· 1977 | 1977 | Classical | 16 | 2453 | 10 |
Leningrad Leningrad RUS· 1977 | 1977 | Classical | 33 | 2399 | 51 |
OWL Ch Paderborn GER· 1977 | 1977 | Classical | 12 | 2203 | 45 |
Leeuwarden ch-NED Leeuwarden ch-NED· 1977 | 1977 | Classical | 16 | 2442 | 106 |
It Fav Hamburg GER· 1977 | 1977 | Classical | 13 | 2417 | 12 |
| Le HavreLe Havre· 1977 | 1977 | Classical | 17 | 2326 | 107 |
Favorite Hamburg GER· 1977 | 1977 | Classical | 18 | 2386 | 66 |
| Moskou etcMoskou etc· 1977 | 1977 | Classical | 91 | 2406 | 243 |
Medellin ch COL Medellin ch COL· Mar 12 – 29, 1977 | Mar 12 – 29, 1977 | Classical | 15 | 2322 | 98 |
Lone Pine Lone Pine, CA USA· Mar 28, 1977 | Mar 28, 1977 | Classical | 21 | 2371 | 17 |
Port Coquitlam Open Port Coquitlam CAN· Mar 19, 1977 | Mar 19, 1977 | Classical | 8 | 1423 | 6 |
Winter Open Victoria CAN· Mar 12 – 13, 1977 | Mar 12 – 13, 1977 | Classical | 11 | 1909 | 9 |
Ottawa Open Ottawa CAN· Mar 11 – 13, 1977 | Mar 11 – 13, 1977 | Classical | 9 | 2073 | 7 |
Bad Lauterberg Bad Lauterberg GER· Mar 9, 1977 | Mar 9, 1977 | Classical | 20 | 2503 | 144 |
Tallinn Tallinn EST· Feb 21 – Mar 6, 1977 | Feb 21 – Mar 6, 1977 | Classical | 29 | 2422 | 155 |
| Match - Morin· Feb 9 – Mar 3, 1977 | Feb 9 – Mar 3, 1977 | Classical | 2 | 1817 | 5 |
| FIDE (30) 1976-1978Il Ciocco cm qf· 1977 | 1977 | Classical | 2 | 2395 | 6 |
Wch candidates qf Lucerne SUI· 1977 | 1977 | Classical | 2 | 2628 | 7 |
Toth Memorial Kecskemet HUN· 1977 | 1977 | Classical | 12 | 2269 | 18 |
UZB Ch Tashkent UZB· 1977 | 1977 | Classical | 6 | 2318 | 7 |
Candidats qf4 Reykjavik ISL· 1977 | 1977 | Classical | 4 | 2615 | 26 |
It FRG Ch Lauterberg GER It FRG-ch Lauterberg GER· 1977 | 1977 | Classical | 16 | 2528 | 12 |
Toth Memorial Kecskemet HUN Toth mem Kecskemet HUN· 1977 | 1977 | Classical | 13 | 2293 | 46 |