| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Hartston vs N J Kalton |
| 0-1 | 23 |
1962 |
Correspondence game | C38 King's Gambit Accepted |
| 2. N J Kalton vs Keene |
| 1-0 | 22 |
1962 |
Dulwich College | C18 French, Winawer |
| 3. N J Kalton vs Hartston |
| 1-0 | 27 |
1962 |
Correspondence game | B06 Robatsch |
| 4. Keene vs N J Kalton |
| 1-0 | 49 |
1962 |
Tournament | D68 Queen's Gambit Declined, Orthodox Defense, Classical |
| 5. Keene vs N J Kalton |
| 1-0 | 21 |
1962 |
Match game 4 | A12 English with b3 |
| 6. N J Kalton vs Keene |
 | 1-0 | 25 |
1963 |
Match game 3, Bromley | B16 Caro-Kann, Bronstein-Larsen Variation |
| 7. Keene vs N J Kalton |
| 1-0 | 28 |
1963 |
Training match, Dlwich | D46 Queen's Gambit Declined Semi-Slav |
| 8. N J Kalton vs Keene |
 | ½-½ | 77 |
1963 |
Lady Northcote Cup | C45 Scotch Game |
| 9. Keene vs N J Kalton |
| 1-0 | 13 |
1963 |
Match game 2, Bromley | D25 Queen's Gambit Accepted |
| 10. Keene vs N J Kalton |
  | 0-1 | 37 |
1963 |
Match, Bromley | D30 Queen's Gambit Declined |
| 11. N J Kalton vs Keene |
| 0-1 | 28 |
1963 |
Bognor Regis 10 second tourney | B00 Uncommon King's Pawn Opening |
| 12. N J Kalton vs Keene |
| 0-1 | 18 |
1963 |
Match game 5, Bromley | B01 Scandinavian |
| 13. N J Kalton vs Keene |
| 0-1 | 28 |
1963 |
6 game match, game 1 | E64 King's Indian, Fianchetto, Yugoslav System |
| 14. R C Lemon vs N J Kalton |
| 0-1 | 32 |
1964 |
London Junior Championship | B94 Sicilian, Najdorf |
| 15. N J Kalton vs Keene |
 | 0-1 | 22 |
1964 |
London Junior Championship | E94 King's Indian, Orthodox |
| 16. Keene vs N J Kalton |
| 0-1 | 43 |
1964 |
Training tournament, London | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 17. Tal vs N J Kalton |
| 1-0 | 23 |
1964 |
London | B94 Sicilian, Najdorf |
| 18. N J Kalton vs J N Sugden |
 | 1-0 | 24 |
1964 |
School match | E93 King's Indian, Petrosian System |
| 19. J W Ologhlen vs N J Kalton |
| 0-1 | 24 |
1966 |
Trinity vs. Emmanuel | A97 Dutch, Ilyin-Genevsky |
| 20. A R Bracher vs N J Kalton |
| 0-1 | 31 |
1966 |
Training match | D50 Queen's Gambit Declined |
| 21. N J Kalton vs D P Thompson |
| 1-0 | 27 |
1966 |
Cambridge U. Championship | E12 Queen's Indian |
| 22. P N Kington vs N J Kalton |
| 0-1 | 45 |
1967 |
British Universities Chess Association | A84 Dutch |
| 23. D Lees vs N J Kalton |
| 0-1 | 36 |
1967 |
Whitby Open | A97 Dutch, Ilyin-Genevsky |
| 24. K M Southern vs N J Kalton |
| 0-1 | 24 |
1968 |
Trinity vs. Jesus | B03 Alekhine's Defense |
| 25. N J Kalton vs R W Morgan |
| 1-0 | 36 |
1968 |
Cambridge U. Championship | B45 Sicilian, Taimanov |