| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. P N Wallis vs Euwe |
 | 0-1 | 29 |
1939 |
Bournemouth | E85 King's Indian, Samisch, Orthodox Variation |
| 2. A G Conde vs P N Wallis |
| 0-1 | 34 |
1939 |
Bournemouth | D45 Queen's Gambit Declined Semi-Slav |
| 3. G Abrahams vs P N Wallis |
| 0-1 | 38 |
1939 |
Bournemouth | D11 Queen's Gambit Declined Slav |
| 4. P N Wallis vs Mieses |
| 0-1 | 34 |
1939 |
Bournemouth | B00 Uncommon King's Pawn Opening |
| 5. P N Wallis vs S Landau |
| 0-1 | 59 |
1939 |
Bournemouth | D87 Grunfeld, Exchange |
| 6. H Courtney vs P N Wallis |
| 0-1 | 45 |
1946 |
Nottingham-B1 | C18 French, Winawer |
| 7. P N Wallis vs Tartakower |
| 0-1 | 39 |
1949 |
Southsea | A04 Reti Opening |
| 8. L Barden vs P N Wallis |
| 0-1 | 36 |
1949 |
Southsea | C02 French, Advance |
| 9. D A Curtis vs P N Wallis |
| 0-1 | 41 |
1959 |
BCF-ch | D04 Queen's Pawn Game |
| 10. P N Wallis vs J Penrose |
| 0-1 | 22 |
1959 |
BCF-ch | B08 Pirc, Classical |
| 11. P N Wallis vs D Ellison |
| 0-1 | 35 |
1959 |
BCF-ch | E67 King's Indian, Fianchetto |
| 12. F Clough vs P N Wallis |
| 0-1 | 46 |
1959 |
BCF-ch | C02 French, Advance |
| 13. P N Wallis vs Wade |
| 0-1 | 16 |
1959 |
BCF-ch | D33 Queen's Gambit Declined, Tarrasch |
| 14. K Lloyd vs P N Wallis |
| 0-1 | 31 |
1959 |
BCF-ch | A07 King's Indian Attack |
| 15. A Lenton vs P N Wallis |
| 0-1 | 19 |
1961 |
Leicestershire Centenary | A04 Reti Opening |
| 16. P N Wallis vs D G Wells |
| 0-1 | 40 |
1962 |
Whitby British ch | E40 Nimzo-Indian, 4.e3 |
| 17. J E T Eldridge vs P N Wallis |
| 0-1 | 34 |
1962 |
Whitby British ch | A04 Reti Opening |
| 18. P N Wallis vs J H Beaty |
| 0-1 | 32 |
1962 |
Whitby British ch | E90 King's Indian |
| 19. P N Wallis vs R A Fuller |
| 0-1 | 29 |
1962 |
Whitby British ch | A56 Benoni Defense |
| 20. P N Wallis vs C Hilton |
 | 0-1 | 33 |
1962 |
Whitby British ch | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 21. D R Thomson vs P N Wallis |
| 0-1 | 28 |
1962 |
Whitby British ch | A10 English |
| 22. J Evans vs P N Wallis |
| 0-1 | 31 |
1970 |
BCF-ch | A15 English |