| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M H Horton vs A H Perkins |
| ½-½ | 34 | 1968 | British Championship | C98 Ruy Lopez, Closed, Chigorin |
| 27. M J Haygarth vs M H Horton |
| 1-0 | 22 | 1968 | British Championship | A43 Old Benoni |
| 28. M Brigden vs M H Horton |
| 0-1 | 42 | 1968 | British Championship | A40 Queen's Pawn Game |
| 29. M H Horton vs M Basman |
| ½-½ | 36 | 1968 | British Championship | B02 Alekhine's Defense |
| 30. Golombek vs M H Horton |
 | 0-1 | 18 | 1968 | British Championship | A40 Queen's Pawn Game |
| 31. M H Horton vs K B Richardson |
| ½-½ | 60 | 1968 | British Championship | B85 Sicilian, Scheveningen, Classical |
| 32. M H Horton vs P N Lee |
| 0-1 | 30 | 1968 | British Championship | B97 Sicilian, Najdorf |
| 33. J Farrand vs M H Horton |
| 0-1 | 36 | 1968 | British Championship | E73 King's Indian |
| 34. M H Horton vs B Cafferty |
| ½-½ | 15 | 1968 | British Championship | B02 Alekhine's Defense |
| 35. V Knox vs M H Horton |
| ½-½ | 42 | 1968 | British Championship | B09 Pirc, Austrian Attack |
| 36. M H Horton vs S Saverymuttu |
| ½-½ | 40 | 1969 | British Championship | B96 Sicilian, Najdorf |
| 37. B H Wood vs M H Horton |
| 0-1 | 15 | 1969 | British Championship | E77 King's Indian |
| 38. M H Horton vs P W Hempson |
| ½-½ | 31 | 1969 | British Championship | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 39. M H Horton vs M J Franklin |
| ½-½ | 25 | 1969 | British Championship | B22 Sicilian, Alapin |
| 40. P Bielby vs M H Horton |
| ½-½ | 18 | 1969 | British Championship | B09 Pirc, Austrian Attack |
| 41. R G Wade vs M H Horton |
| 1-0 | 55 | 1969 | British Championship | E92 King's Indian |
| 42. M H Horton vs P H Clarke |
| ½-½ | 25 | 1969 | British Championship | C95 Ruy Lopez, Closed, Breyer |
| 43. M H Horton vs K Oliff |
| ½-½ | 21 | 1969 | British Championship | C67 Ruy Lopez |
| 44. L Blackstock vs M H Horton |
| ½-½ | 43 | 1969 | British Championship | E92 King's Indian |
| 45. R Thomas vs M H Horton |
| ½-½ | 30 | 1969 | British Championship | C90 Ruy Lopez, Closed |
| 46. M H Horton vs P M Jamieson |
| ½-½ | 29 | 1969 | British Championship | B09 Pirc, Austrian Attack |
| 47. C W Kennaugh vs M H Horton |
| ½-½ | 44 | 1972 | Islington Open | B06 Robatsch |
| 48. M H Horton vs T Shaw |
| ½-½ | 40 | 1972 | Islington Open | C77 Ruy Lopez |
| 49. M H Horton vs T K Hemingway |
| 0-1 | 46 | 1972 | Islington Open | B00 Uncommon King's Pawn Opening |
| 50. M H Horton vs R Filutowski |
| 1-0 | 27 | 1978 | EU-chT1 fin 10 corr | B42 Sicilian, Kan |
Kibitzing
