| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. S Webb vs J Horner |
| 1-0 | 39 | 1975 | London | A54 Old Indian, Ukrainian Variation, 4.Nf3 |
| 52. J Horner vs Miles |
| 0-1 | 57 | 1975 | London | B30 Sicilian |
| 53. Adorjan vs J Horner |
 | 1-0 | 18 | 1975 | London | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 54. J Horner vs C Pritchett |
| 1-0 | 32 | 1975 | London | B40 Sicilian |
| 55. M Fuller vs J Horner |
| ½-½ | 37 | 1975 | London | A46 Queen's Pawn Game |
| 56. J Horner vs Nunn |
| 1-0 | 41 | 1975 | London | B08 Pirc, Classical |
| 57. G Sigurjonsson vs J Horner |
| 1-0 | 65 | 1975 | London | A05 Reti Opening |
| 58. J Horner vs Timman |
| ½-½ | 46 | 1975 | London | B02 Alekhine's Defense |
| 59. Sax vs J Horner |
| 1-0 | 53 | 1975 | London | C26 Vienna |
| 60. P J Romilly vs J Horner |
| 0-1 | 42 | 1976 | British Championship | C92 Ruy Lopez, Closed |
| 61. J Horner vs Miles |
| 0-1 | 54 | 1976 | British Championship | B40 Sicilian |
| 62. D B Pritchard vs J Horner |
| 0-1 | 42 | 1976 | British Championship | A10 English |
| 63. J Horner vs G Botterill |
| 1-0 | 35 | 1976 | British Championship | B08 Pirc, Classical |
| 64. P W Hempson vs J Horner |
| ½-½ | 47 | 1976 | British Championship | E81 King's Indian, Samisch |
| 65. Speelman vs J Horner |
 | 1-0 | 35 | 1976 | British Championship | A10 English |
| 66. J Horner vs G Lambert |
| 0-1 | 46 | 1976 | British Championship | B08 Pirc, Classical |
| 67. J Horner vs P H Clarke |
| 1-0 | 22 | 1976 | British Championship | C10 French |
| 68. J C Pigott vs J Horner |
| 0-1 | 24 | 1976 | British Championship | A42 Modern Defense, Averbakh System |
| 69. E Rayner vs J Horner |
| 1-0 | 48 | 1976 | British Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 70. J Horner vs Chandler |
| 0-1 | 39 | 1976 | British Championship | B49 Sicilian, Taimanov Variation |
| 71. J Horner vs N Davies |
| 0-1 | 60 | 1977 | Chorley | C63 Ruy Lopez, Schliemann Defense |
| 72. M Corden vs J Horner |
| ½-½ | 18 | 1977 | Chorley | C17 French, Winawer, Advance |
| 73. J Horner vs N Ivell |
| 1-0 | 42 | 1977 | Chorley | B50 Sicilian |
| 74. V Knox vs J Horner |
| 0-1 | 40 | 1977 | Chorley | C18 French, Winawer |
| 75. J Horner vs C G Burton |
| 1-0 | 38 | 1977 | Chorley | B22 Sicilian, Alapin |
Kibitzing
