| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. P N Wallis vs NN |
 | 1-0 | 12 |
1923 |
? | D00 Queen's Pawn Game |
| 2. E Klein vs P N Wallis |
| 1-0 | 30 |
1939 |
Bournemouth | D26 Queen's Gambit Accepted |
| 3. Flohr vs P N Wallis |
| 1-0 | 30 |
1939 |
Bournemouth | D46 Queen's Gambit Declined Semi-Slav |
| 4. P N Wallis vs A Thomas |
| 1-0 | 34 |
1939 |
Bournemouth | E22 Nimzo-Indian, Spielmann Variation |
| 5. P N Wallis vs F Kitto |
| 1-0 | 28 |
1939 |
Bournemouth | D33 Queen's Gambit Declined, Tarrasch |
| 6. B H Wood vs P N Wallis |
 | 1-0 | 38 |
1945 |
British Correspondence Championship -6 | C17 French, Winawer, Advance |
| 7. R H Newman vs P N Wallis |
| 1-0 | 54 |
1946 |
Nottingham-B1 | E62 King's Indian, Fianchetto |
| 8. T Jones vs P N Wallis |
| 1-0 | 29 |
1946 |
Nottingham-B1 | C00 French Defense |
| 9. Aitken vs P N Wallis |
| 1-0 | 43 |
1949 |
Southsea | C18 French, Winawer |
| 10. Rossolimo vs P N Wallis |
 | 1-0 | 37 |
1949 |
Southsea | C05 French, Tarrasch |
| 11. P N Wallis vs G A Thomas |
| 1-0 | 27 |
1949 |
Southsea | A07 King's Indian Attack |
| 12. B H Wood vs P N Wallis |
| 1-0 | 31 |
1959 |
BCF-ch | E00 Queen's Pawn Game |
| 13. P N Wallis vs J B Howson |
| 1-0 | 75 |
1959 |
BCF-ch | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 14. M Haygarth vs P N Wallis |
| 1-0 | 51 |
1959 |
BCF-ch | C05 French, Tarrasch |
| 15. A Thomas vs P N Wallis |
| 1-0 | 60 |
1959 |
BCF-ch | C01 French, Exchange |
| 16. P N Wallis vs W Tabakiernik |
| 1-0 | 28 |
1961 |
Leicestershire Centenary | E90 King's Indian |
| 17. P Clarke vs P N Wallis |
| 1-0 | 77 |
1962 |
Whitby British ch | A46 Queen's Pawn Game |
| 18. P N Wallis vs R H Northage |
| 1-0 | 37 |
1962 |
Whitby British ch | E90 King's Indian |
| 19. P Clarke vs P N Wallis |
| 1-0 | 38 |
1970 |
BCF-ch | E16 Queen's Indian |
| 20. Cafferty vs P N Wallis |
 | 1-0 | 37 |
1970 |
BCF-ch | A08 King's Indian Attack |
| 21. Hartston vs P N Wallis |
| 1-0 | 37 |
1970 |
BCF-ch | C17 French, Winawer, Advance |
| 22. R G Eales vs P N Wallis |
| 1-0 | 41 |
1970 |
BCF-ch | E17 Queen's Indian |
| 23. P N Wallis vs V W Knox |
| 1-0 | 38 |
1970 |
BCF-ch | D45 Queen's Gambit Declined Semi-Slav |
| 24. P N Wallis vs R C Lemon |
| 1-0 | 75 |
1970 |
BCF-ch | E70 King's Indian |