| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. A Thomas vs P N Wallis |
| 1-0 | 60 |
1959 |
BCF-ch | C01 French, Exchange |
| 27. M Haygarth vs P N Wallis |
| 1-0 | 51 |
1959 |
BCF-ch | C05 French, Tarrasch |
| 28. F Clough vs P N Wallis |
| 0-1 | 46 |
1959 |
BCF-ch | C02 French, Advance |
| 29. P N Wallis vs Golombek |
| ½-½ | 40 |
1959 |
BCF-ch | E21 Nimzo-Indian, Three Knights |
| 30. P N Wallis vs J Penrose |
| 0-1 | 22 |
1959 |
BCF-ch | B08 Pirc, Classical |
| 31. P N Wallis vs Wade |
| 0-1 | 16 |
1959 |
BCF-ch | D33 Queen's Gambit Declined, Tarrasch |
| 32. K Lloyd vs P N Wallis |
| 0-1 | 31 |
1959 |
BCF-ch | A07 King's Indian Attack |
| 33. D A Curtis vs P N Wallis |
| 0-1 | 41 |
1959 |
BCF-ch | D04 Queen's Pawn Game |
| 34. B H Wood vs P N Wallis |
| 1-0 | 31 |
1959 |
BCF-ch | E00 Queen's Pawn Game |
| 35. P N Wallis vs L Barden |
| ½-½ | 73 |
1961 |
Leicestershire Centenary | E90 King's Indian |
| 36. P N Wallis vs Gligoric |
| ½-½ | 25 |
1961 |
Leicestershire Centenary | E70 King's Indian |
| 37. P D Sanderson vs P N Wallis |
| ½-½ | 60 |
1961 |
Leicestershire Centenary | C02 French, Advance |
| 38. P N Wallis vs W Tabakiernik |
| 1-0 | 28 |
1961 |
Leicestershire Centenary | E90 King's Indian |
| 39. A Lenton vs P N Wallis |
| 0-1 | 19 |
1961 |
Leicestershire Centenary | A04 Reti Opening |
| 40. J E T Eldridge vs P N Wallis |
| 0-1 | 34 |
1962 |
Whitby British ch | A04 Reti Opening |
| 41. P N Wallis vs C Hilton |
 | 0-1 | 33 |
1962 |
Whitby British ch | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 42. P B Cook vs P N Wallis |
| ½-½ | 37 |
1962 |
Whitby British ch | C17 French, Winawer, Advance |
| 43. G Abrahams vs P N Wallis |
| ½-½ | 50 |
1962 |
Whitby British ch | D46 Queen's Gambit Declined Semi-Slav |
| 44. P Clarke vs P N Wallis |
| 1-0 | 77 |
1962 |
Whitby British ch | A46 Queen's Pawn Game |
| 45. P N Wallis vs R A Fuller |
| 0-1 | 29 |
1962 |
Whitby British ch | A56 Benoni Defense |
| 46. P N Wallis vs J H Beaty |
| 0-1 | 32 |
1962 |
Whitby British ch | E90 King's Indian |
| 47. D R Thomson vs P N Wallis |
| 0-1 | 28 |
1962 |
Whitby British ch | A10 English |
| 48. P N Wallis vs R H Northage |
| 1-0 | 37 |
1962 |
Whitby British ch | E90 King's Indian |
| 49. P N Wallis vs D G Wells |
| 0-1 | 40 |
1962 |
Whitby British ch | E40 Nimzo-Indian, 4.e3 |
| 50. D A Smith vs P N Wallis |
| ½-½ | 37 |
1962 |
Whitby British ch | C17 French, Winawer, Advance |