| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J N Sugden vs Keene |
  | 1-0 | 26 |
1961 |
Match | A55 Old Indian, Main line |
| 2. G K Sandiford vs Keene |
  | 1-0 | 21 |
1961 |
2nd Replay of Dulwich College Champions | E72 King's Indian |
| 3. G K Sandiford vs Keene |
 | 1-0 | 25 |
1961 |
3rd match game, Clapham | C61 Ruy Lopez, Bird's Defense |
| 4. D Parr vs Keene |
  | 1-0 | 28 |
1962 |
British Schools Championship | C02 French, Advance |
| 5. Keene vs G K Sandiford |
| 0-1 | 38 |
1962 |
Match game 14 | E10 Queen's Pawn Game |
| 6. G K Sandiford vs Keene |
 | 1-0 | 41 |
1962 |
Match game 2 | B00 Uncommon King's Pawn Opening |
| 7. N J Kalton vs Keene |
| 1-0 | 22 |
1962 |
Dulwich College | C18 French, Winawer |
| 8. D J Strauss vs Keene |
  | 1-0 | 47 |
1962 |
Junior county match | E72 King's Indian |
| 9. M V Lambshire vs Keene |
 | 1-0 | 28 |
1962 |
British Schools Championship | C18 French, Winawer |
| 10. S Hawes vs Keene |
  | 1-0 | 20 |
1963 |
London League | B32 Sicilian |
| 11. N J Patterson vs Keene |
 | 1-0 | 38 |
1963 |
London Junior Championship | C18 French, Winawer |
| 12. Keene vs N J Kalton |
  | 0-1 | 37 |
1963 |
Match, Bromley | D30 Queen's Gambit Declined |
| 13. Keene vs N J Patterson |
| 0-1 | 48 |
1963 |
5 game match, game 5 | D97 Grunfeld, Russian |
| 14. W Tabakiernik vs Keene |
| 1-0 | 31 |
1963 |
Leicester Jamboree | A45 Queen's Pawn Game |
| 15. N J Kalton vs Keene |
 | 1-0 | 25 |
1963 |
Match game 3, Bromley | B16 Caro-Kann, Bronstein-Larsen Variation |
| 16. J N Sugden vs Keene |
  | 1-0 | 32 |
1963 |
Thematic Match | A50 Queen's Pawn Game |
| 17. N J Patterson vs Keene |
| 1-0 | 40 |
1963 |
5 game match, game 2 | C61 Ruy Lopez, Bird's Defense |
| 18. Keene vs R A Harris |
 | 0-1 | 33 |
1963 |
U.K. Schools Championsihp | E61 King's Indian |
| 19. J N Sugden vs Keene |
 | 1-0 | 46 |
1964 |
Surrey Juniors v Kent bd 1 | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 20. Keene vs K Lloyd |
 | 0-1 | 35 |
1964 |
London League | E70 King's Indian |
| 21. Keene vs N J Kalton |
| 0-1 | 43 |
1964 |
Training tournament, London | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 22. D Wells vs Keene |
 | 1-0 | 29 |
1964 |
County Match | A56 Benoni Defense |
| 23. I W Sharpe vs Keene |
 | 1-0 | 28 |
1964 |
County Match | B28 Sicilian, O'Kelly Variation |
| 24. R W Morgan vs Keene |
 | 1-0 | 42 |
1964 |
County Match | B48 Sicilian, Taimanov Variation |
| 25. Keene vs J Cordovil |
 | 0-1 | 38 |
1965 |
World Junior Championship | E30 Nimzo-Indian, Leningrad |