Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. F N Stephenson vs R Lancaster |
| ½-½ | 29 | 1969 | British Championship | A10 English |
27. R Lancaster vs R Bellin |
| ½-½ | 27 | 1969 | British Championship | B23 Sicilian, Closed |
28. D Lees vs R Lancaster |
| 1-0 | 34 | 1969 | British Championship | B07 Pirc |
29. R Lancaster vs H D Holmes |
| 1-0 | 22 | 1969 | British Championship | C07 French, Tarrasch |
30. L Blackstock vs R Lancaster |
| 1-0 | 59 | 1969 | British Championship | E92 King's Indian |
31. M Gavrilovic vs R Lancaster |
| ½-½ | 18 | 1969 | British Championship | B06 Robatsch |
32. R Lancaster vs L De Veauce |
| ½-½ | 23 | 1969 | British Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
33. R Bailey vs R Lancaster |
| ½-½ | 40 | 1969 | British Championship | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
34. R Lancaster vs B H Wood |
| ½-½ | 32 | 1969 | British Championship | C05 French, Tarrasch |
35. C Laird vs R Lancaster |
| 1-0 | 41 | 1982 | Kings Head International | A08 King's Indian Attack |
36. R Lancaster vs J Levitt |
| ½-½ | 54 | 1982 | Kings Head International | C03 French, Tarrasch |
37. R Lancaster vs M Basman |
 | 0-1 | 39 | 1982 | Kings Head International | B00 Uncommon King's Pawn Opening |
38. E Schiller vs R Lancaster |
| 0-1 | 32 | 1982 | Kings Head International | B07 Pirc |
39. R Lancaster vs E Formanek |
| 0-1 | 33 | 1982 | Kings Head International | C04 French, Tarrasch, Guimard Main line |
40. D E Rumens vs R Lancaster |
| 1-0 | 24 | 1982 | Kings Head International | B21 Sicilian, 2.f4 and 2.d4 |
41. R Lancaster vs A Whiteley |
| 0-1 | 33 | 1982 | Kings Head International | B21 Sicilian, 2.f4 and 2.d4 |
42. R Lancaster vs D Goodman |
| 0-1 | 42 | 1982 | Kings Head International | B06 Robatsch |
43. J Tisdall vs R Lancaster |
| 1-0 | 41 | 1982 | Kings Head International | B06 Robatsch |