| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J B Howson vs D A Curtis |
| 1-0 | 38 |
1959 |
BCF-ch | B02 Alekhine's Defense |
| 2. J B Howson vs Milner-Barry |
| 0-1 | 41 |
1959 |
BCF-ch | C41 Philidor Defense |
| 3. J B Howson vs J H Beaty |
| ½-½ | 43 |
1959 |
BCF-ch | B26 Sicilian, Closed, 6.Be3 |
| 4. P N Wallis vs J B Howson |
| 1-0 | 75 |
1959 |
BCF-ch | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 5. J B Howson vs J Penrose |
| ½-½ | 53 |
1959 |
BCF-ch | B23 Sicilian, Closed |
| 6. M Fallone vs J B Howson |
| 0-1 | 46 |
1959 |
BCF-ch | A40 Queen's Pawn Game |
| 7. J B Howson vs F Clough |
| 1-0 | 38 |
1959 |
BCF-ch | C50 Giuoco Piano |
| 8. J B Howson vs N L Freeman |
| 0-1 | 39 |
1959 |
BCF-ch | B26 Sicilian, Closed, 6.Be3 |
| 9. A M Hallmark vs J B Howson |
| 1-0 | 62 |
1959 |
BCF-ch | A91 Dutch Defense |
| 10. A Y Green vs J B Howson |
 | 1-0 | 77 |
1959 |
BCF-ch | A46 Queen's Pawn Game |
| 11. T J Beach vs J B Howson |
| 1-0 | 37 |
1959 |
BCF-ch | A97 Dutch, Ilyin-Genevsky |
| 12. J B Howson vs D Mardle |
| 0-1 | 80 |
1962 |
Whitby British ch | A45 Queen's Pawn Game |
| 13. J B Howson vs R A Fuller |
| ½-½ | 23 |
1962 |
Whitby British ch | B19 Caro-Kann, Classical |
| 14. J B Howson vs R Payne |
| 0-1 | 56 |
1962 |
Whitby British ch | A02 Bird's Opening |
| 15. A W Bowen vs J B Howson |
| ½-½ | 39 |
1962 |
Whitby British ch | D31 Queen's Gambit Declined |
| 16. J B Howson vs R H Northage |
| 1-0 | 41 |
1962 |
Whitby British ch | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 17. J E T Eldridge vs J B Howson |
| 0-1 | 40 |
1962 |
Whitby British ch | A09 Reti Opening |
| 18. J B Hawson vs J B Howson |
| 0-1 | 52 |
1962 |
Whitby British ch | D02 Queen's Pawn Game |
| 19. J B Howson vs E L Stuart |
| 1-0 | 36 |
1962 |
Whitby British ch | A45 Queen's Pawn Game |
| 20. J B Howson vs D A Smith |
| 0-1 | 62 |
1962 |
Whitby British ch | A48 King's Indian |
| 21. D R Thomson vs J B Howson |
| 1-0 | 70 |
1962 |
Whitby British ch | C75 Ruy Lopez, Modern Steinitz Defense |
| 22. C Hilton vs J B Howson |
| 1-0 | 35 |
1962 |
Whitby British ch | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 23. Keene vs J B Howson |
| 1-0 | 32 |
1965 |
London Team Ch S&B v Metropolitan bd1 | C00 French Defense |
| 24. Keene vs J B Howson |
  | 1-0 | 35 |
1965 |
Kent League | A95 Dutch, Stonewall |
| 25. J Hardinge vs J B Howson |
 | 0-1 | 34 |
1967 |
Cambs v Essex | D35 Queen's Gambit Declined |