| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. P N Lee vs Keres |
| 0-1 | 56 |
1964 |
Hastings (28.12.64) | C70 Ruy Lopez |
| 2. P N Lee vs Gligoric |
| 0-1 | 41 |
1964 |
Hastings 6465 | B40 Sicilian |
| 3. P N Lee vs H Pfleger |
| ½-½ | 27 |
1964 |
Zurich - jungmeister | C92 Ruy Lopez, Closed |
| 4. Spassky vs P N Lee |
 | 1-0 | 24 |
1965 |
Hastings | E30 Nimzo-Indian, Leningrad |
| 5. Savon vs P N Lee |
| 1-0 | 37 |
1965 |
WchT U26 12th fin-A | A15 English |
| 6. P N Lee vs Gligoric |
| 0-1 | 44 |
1965 |
Hastings 6566 | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 7. P N Lee vs I Radulov |
| 1-0 | 40 |
1965 |
Student Olympiad, Prelims | A08 King's Indian Attack |
| 8. P N Lee vs Vasiukov |
| ½-½ | 37 |
1965 |
Hastings 6566 | B40 Sicilian |
| 9. P N Lee vs Y Stepak |
| 1-0 | 44 |
1966 |
Orebro Stud olm fA | A08 King's Indian Attack |
| 10. Hort vs P N Lee |
| 1-0 | 51 |
1966 |
Orebro Stud olm fA | B26 Sicilian, Closed, 6.Be3 |
| 11. P N Lee vs H MacGrillen |
| 1-0 | 33 |
1966 |
Orebro Stud olm prelim4 | C95 Ruy Lopez, Closed, Breyer |
| 12. C Zuidema vs P N Lee |
| ½-½ | 29 |
1966 |
Orebro Stud olm fA | B92 Sicilian, Najdorf, Opocensky Variation |
| 13. P N Lee vs Gheorghiu |
| ½-½ | 22 |
1966 |
Orebro Stud olm fA | C95 Ruy Lopez, Closed, Breyer |
| 14. S Kagan vs P N Lee |
| 0-1 | 42 |
1966 |
Orebro Stud olm prelim4 | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 15. P N Lee vs Savon |
| 0-1 | 61 |
1966 |
Orebro Stud olm fA | C93 Ruy Lopez, Closed, Smyslov Defense |
| 16. P N Lee vs B Brinck-Claussen |
| 0-1 | 55 |
1966 |
Orebro Stud olm fA | C92 Ruy Lopez, Closed |
| 17. P Hohler vs P N Lee |
| ½-½ | 40 |
1966 |
Orebro Stud olm prelim4 | B93 Sicilian, Najdorf, 6.f4 |
| 18. A Hennings vs P N Lee |
| 1-0 | 25 |
1966 |
Orebro Stud olm fA | B76 Sicilian, Dragon, Yugoslav Attack |
| 19. P N Lee vs E Keogh |
| 1-0 | 33 |
1966 |
Havana ol prelim | C97 Ruy Lopez, Closed, Chigorin |
| 20. D Rajkovic vs P N Lee |
| 1-0 | 76 |
1966 |
Orebro Stud olm fA | E85 King's Indian, Samisch, Orthodox Variation |
| 21. P N Lee vs H Westerinen |
| 0-1 | 66 |
1966 |
Orebro Stud olm fA | B09 Pirc, Austrian Attack |
| 22. L P Burnett vs P N Lee |
 | 0-1 | 28 |
1967 |
BCF-ch | B97 Sicilian, Najdorf |
| 23. Golombek vs P N Lee |
| ½-½ | 21 |
1967 |
BCF-ch | A25 English |
| 24. Wade vs P N Lee |
| ½-½ | 22 |
1967 |
BCF-ch | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 25. P N Lee vs Hartston |
| ½-½ | 22 |
1967 |
BCF-ch | C90 Ruy Lopez, Closed |