Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. S Mariotti vs J I Century |
| 1-0 | 38 | 1970 | Islington Open | C17 French, Winawer, Advance |
2. A Whiteley vs J I Century |
| 0-1 | 36 | 1970 | Islington Open | E62 King's Indian, Fianchetto |
3. J I Century vs A J Morley |
| ½-½ | 38 | 1972 | Islington Open | A01 Nimzovich-Larsen Attack |
4. N Littlewood vs J I Century |
| 1-0 | 18 | 1972 | Islington Open | B32 Sicilian |
5. J I Century vs D Kovic |
| 1-0 | 41 | 1972 | Islington Open | A01 Nimzovich-Larsen Attack |
6. L Harris vs J I Century |
| 0-1 | 27 | 1972 | Islington Open | B30 Sicilian |
7. B F O'Sullivan vs J I Century |
| 1-0 | 44 | 1972 | Islington Open | A01 Nimzovich-Larsen Attack |
8. J I Century vs M D Osmond |
| 1-0 | 40 | 1972 | Islington Open | B42 Sicilian, Kan |
9. J I Century vs H Akvist |
| 0-1 | 37 | 1973 | GRE Islington Open | C55 Two Knights Defense |
10. J I Century vs S Webb |
| 0-1 | 39 | 1977 | British Championship | C15 French, Winawer |
11. G D Hillyard vs J I Century |
| ½-½ | 27 | 1977 | British Championship | A56 Benoni Defense |
12. J I Century vs R Thomas |
| ½-½ | 26 | 1977 | British Championship | A09 Reti Opening |
13. A J Morley vs J I Century |
| ½-½ | 30 | 1977 | British Championship | B02 Alekhine's Defense |
14. J I Century vs M Prizant |
| ½-½ | 27 | 1977 | British Championship | A04 Reti Opening |
15. J Farrand vs J I Century |
| 0-1 | 27 | 1977 | British Championship | A45 Queen's Pawn Game |
16. J I Century vs G Flear |
| 1-0 | 35 | 1977 | British Championship | D34 Queen's Gambit Declined, Tarrasch |
17. D Cummings vs J I Century |
| ½-½ | 42 | 1977 | British Championship | A16 English |
18. J I Century vs G Lambert |
| 1-0 | 41 | 1977 | British Championship | A15 English |
19. D E Rumens vs J I Century |
| 0-1 | 49 | 1977 | British Championship | B42 Sicilian, Kan |
20. G Botterill vs J I Century |
| 1-0 | 48 | 1977 | British Championship | A71 Benoni, Classical, 8.Bg5 |
21. J I Century vs J C Henshaw |
| 0-1 | 29 | 1978 | 2nd Lloyds Bank Masters Open | A15 English |
22. J I Century vs A D Martin |
 | 1-0 | 62 | 1978 | 2nd Lloyds Bank Masters Open | E19 Queen's Indian, Old Main line, 9.Qxc3 |
23. J I Century vs M Fuller |
| 0-1 | 48 | 1979 | Aaronson Masters | E62 King's Indian, Fianchetto |
24. Short vs J I Century |
| 1-0 | 39 | 1979 | Aaronson Masters | C16 French, Winawer |
25. S Knott vs J I Century |
| 1-0 | 36 | 1979 | Aaronson Masters | A99 Dutch, Ilyin-Genevsky Variation with b3 |