| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. P Boersma vs M Hebden |
| 0-1 | 42 | 1979 | Regency Masters A | E91 King's Indian |
| 27. M Hebden vs K Langeweg |
 | 0-1 | 24 | 1979 | Regency Masters A | B21 Sicilian, 2.f4 and 2.d4 |
| 28. M Hebden vs K Kaiszauri |
| 1-0 | 46 | 1979 | Regency Masters A | C34 King's Gambit Accepted |
| 29. M Hebden vs C Niklasson |
| 1-0 | 42 | 1979 | Regency Masters A | B21 Sicilian, 2.f4 and 2.d4 |
| 30. M Hebden vs I Josephs |
| 1-0 | 45 | 1979 | Regency Masters A | B14 Caro-Kann, Panov-Botvinnik Attack |
| 31. M Macdonald-Ross vs M Hebden |
| ½-½ | 20 | 1979 | Regency Masters A | A46 Queen's Pawn Game |
| 32. Plaskett vs M Hebden |
| 1-0 | 35 | 1979 | Regency Masters A | A32 English, Symmetrical Variation |
| 33. G Iskov vs M Hebden |
| ½-½ | 24 | 1979 | Regency Masters A | C46 Three Knights |
| 34. M Hebden vs Chandler |
| 1-0 | 34 | 1979 | Goodyear op 5th | C17 French, Winawer, Advance |
| 35. M Hebden vs E Davis |
| 1-0 | 28 | 1980 | cr Grand | C17 French, Winawer, Advance |
| 36. M Hebden vs I Wells |
| 1-0 | 36 | 1980 | Robert Silk International Fellowship | B21 Sicilian, 2.f4 and 2.d4 |
| 37. M Hebden vs T Milligan |
| 1-0 | 25 | 1980 | British Championship | C36 King's Gambit Accepted, Abbazia Defense |
| 38. C Pritchett vs M Hebden |
| 1-0 | 61 | 1980 | British Championship | C84 Ruy Lopez, Closed |
| 39. P Adams vs M Hebden |
| 0-1 | 31 | 1980 | British Championship | A37 English, Symmetrical |
| 40. M Hebden vs K Neat |
| 1-0 | 33 | 1980 | British Championship | B21 Sicilian, 2.f4 and 2.d4 |
| 41. M Hebden vs Chandler |
| 0-1 | 84 | 1980 | British Championship | B06 Robatsch |
| 42. M Pein vs M Hebden |
| 0-1 | 43 | 1980 | British Championship | A57 Benko Gambit |
| 43. M Hebden vs G Flear |
| ½-½ | 42 | 1980 | British Championship | C36 King's Gambit Accepted, Abbazia Defense |
| 44. D E Rumens vs M Hebden |
| 0-1 | 61 | 1980 | British Championship | A02 Bird's Opening |
| 45. W Hartston vs M Hebden |
| 1-0 | 63 | 1980 | British Championship | C24 Bishop's Opening |
| 46. M Hebden vs Speelman |
| 0-1 | 72 | 1980 | British Championship | B06 Robatsch |
| 47. R Bellin vs M Hebden |
| 1-0 | 41 | 1980 | British Championship | A46 Queen's Pawn Game |
| 48. I Wells vs M Hebden |
| 1-0 | 37 | 1980 | Oxford Open | C68 Ruy Lopez, Exchange |
| 49. I Wells vs M Hebden |
| ½-½ | 67 | 1980 | Islington Open | C68 Ruy Lopez, Exchange |
| 50. M Hebden vs M Basman |
| 0-1 | 35 | 1981 | Borehamwood | B00 Uncommon King's Pawn Opening |
Kibitzing
