| William Watson vs Michael Adams | 0-1 | 39 | 1986 | BCF-ch | C15 | Reti Opening |  Browse |
| William Watson vs Michael Adams | ½-½ | 20 | 1989 | London WFW | B17 | Caro-Kann Steinitz variation | Browse |
| William Watson vs Michael Adams | ½-½ | 2 | 1989 | London NWYM | C00 | French defence | Browse |
| Michael Adams vs William Watson | 1-0 | 32 | 1990 | BCF-ch | B21 | Sicilian Smith-Morra gambit | Browse |
| William Watson vs Michael Adams | ½-½ | 20 | 1990 | London WFW | B01 | Scandinavian Marshall variation | Browse |
| Michael Adams vs William Watson | ½-½ | 33 | 1991 | ENG-ch m | A01 | Nimzovich-Larsen attack Modern variatio... | Browse |
| William Watson vs Michael Adams | ½-½ | 63 | 1991 | ENG-ch m | C45 | Dunst (Sleipner, Heinrichsen) Opening | Browse |
| William Watson vs Michael Adams | 0-1 | 44 | 1991 | ENG-ch m | C55 | Two knights defence, Perreux variation | Browse |
| Michael Adams vs William Watson | ½-½ | 25 | 1991 | ENG-ch m | A45 | Trompovsky attack (Ruth, Opovcensky Ope... | Browse |
| William Watson vs Michael Adams | 0-1 | 49 | 1996 | Kilkenny op | C26 | Vienna Paulsen-Mieses variation | Browse |
| William Watson vs Lev Alburt | ½-½ | 56 | 1987 | New York op | B04 | Benko's Opening | Browse |
| Zoltan Almasi vs William Watson | 1-0 | 34 | 1995 | Bundesliga 9495 | B76 | Sicilian Dragon, Yugoslav attack, 7...O... | Browse |
| William Watson vs Viswanathan Anand | ½-½ | 10 | 1989 | GMA Baleares Open | C11 | French Burn variation | Browse |
| William Watson vs Etienne Bacrot | 0-1 | 34 | 2001 | Bundesliga 2000-1 | B62 | Sicilian Richter-Rauzer, Margate (Alekh... | Browse |
| William Watson vs Evgeny Bareev | 0-1 | 39 | 1988 | GMA-Open | C08 | Gedult's Opening | Browse |
| Evgeny Bareev vs William Watson | 1-0 | 52 | 1988 | Sochi | E74 | Reti Opening | Browse |
| Alexander Beliavsky vs William Watson | 1-0 | 42 | 1985 | Lloyds Bank op | B76 | Sicilian Dragon, Yugoslav attack, 7...O... | Browse |
| Joel Benjamin vs William Watson | 1-0 | 38 | 1984 | Hastings8485 | A26 | Reti Opening | Browse |
| William Watson vs Joel Benjamin | 1-0 | 34 | 1987 | New York op | B46 | Sicilian Taimanov variation | Browse |
| Joel Benjamin vs William Watson | ½-½ | 11 | 1989 | GMA Baleares Open | D00 | King's Indian East Indian defence | Browse |
| Pavel Blatny vs William Watson | 1-0 | 34 | 1995 | Bundesliga 9495 | B08 | Reti Opening | Browse |
| Pavel Blatny vs William Watson | 0-1 | 48 | 1997 | Bundesliga 9697 | A38 | Reti Opening | Browse |
| David Bronstein vs William Watson | ½-½ | 51 | 1989 | London NWYM | D03 | Bird's Opening | Browse |
| Robert Byrne vs William Watson | 1-0 | 59 | 1991 | London WFW | B78 | Sicilian Dragon, Yugoslav attack, 7...O... | Browse |
| William Watson vs Maia Chiburdanidze | ½-½ | 41 | 1985 | Frunze | C84 | Ruy Lopez Archangelsk (counterthrust) v... | Browse |
| Maia Chiburdanidze vs William Watson | 1-0 | 70 | 1987 | Brussels mix | D24 | Gedult's Opening | Browse |
| William Watson vs Maia Chiburdanidze | 1-0 | 24 | 1987 | Brussels mix | B35 | Sicilian Accelerated Fianchetto, Modern... | Browse |
| Larry Christiansen vs William Watson | ½-½ | 21 | 1987 | New York op | E87 | King's Indian Saemisch, 5...O-O | Browse |
| William Watson vs Larry Christiansen | ½-½ | 34 | 1996 | Bundesliga 9596 | B01 | Dunst (Sleipner, Heinrichsen) Opening | Browse |
| William Watson vs Alexey Dreev | 1-0 | 33 | 1985 | Moscow-B | C26 | Vienna Paulsen-Mieses variation | Browse |
