Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. W Hartston vs N J Kalton |
| 0-1 | 23 | 1962 | Correspondence game | C38 King's Gambit Accepted |
2. W Hartston vs A Riley |
| 1-0 | 42 | 1962 | Whitby British u15 ch | A16 English |
3. N J Kalton vs W Hartston |
| 1-0 | 27 | 1962 | Correspondence game | B06 Robatsch |
4. Keene vs W Hartston |
| ½-½ | 30 | 1962 | London League LLA v Southgate | D10 Queen's Gambit Declined Slav |
5. W Hartston vs R C Moss |
| 1-0 | 30 | 1962 | U18 Counties Correspondence Championship, Buckinghamshire v | C30 King's Gambit Declined |
6. W Hartston vs D L Roth |
| 1-0 | 22 | 1963 | BCF-ch U18 | B45 Sicilian, Taimanov |
7. Keene vs W Hartston |
  | 1-0 | 27 | 1964 | London U-18 Championship | A07 King's Indian Attack |
8. Tal vs W Hartston |
| ½-½ | 47 | 1964 | Tal Simul, 24b London | B49 Sicilian, Taimanov Variation |
9. Tal vs W Hartston |
| ½-½ | 54 | 1964 | Simul, 20b | A54 Old Indian, Ukrainian Variation, 4.Nf3 |
10. W Hartston vs Keene |
| ½-½ | 29 | 1964 | Training tournament London | A02 Bird's Opening |
11. W Hartston vs H Glauser |
| 1-0 | 29 | 1965 | NLD | C34 King's Gambit Accepted |
12. W Hartston vs J Littlewood |
| 1-0 | 46 | 1965 | Ilford | C35 King's Gambit Accepted, Cunningham |
13. R Williams vs W Hartston |
| 0-1 | 25 | 1965 | Stevenson Memorial | A21 English |
14. W Hartston vs W H Pratten |
| ½-½ | 21 | 1965 | Stevenson Memorial | B02 Alekhine's Defense |
15. R H Nathan vs W Hartston |
| 0-1 | 37 | 1965 | Stevenson Memorial | C02 French, Advance |
16. Milner-Barry vs W Hartston |
| 0-1 | 43 | 1965 | Stevenson Memorial | A07 King's Indian Attack |
17. O'Kelly vs W Hartston |
| 1-0 | 40 | 1965 | Stevenson Memorial | D32 Queen's Gambit Declined, Tarrasch |
18. Keene vs W Hartston |
| ½-½ | 13 | 1965 | London June Training | A37 English, Symmetrical |
19. W Hartston vs R G Wade |
| ½-½ | 21 | 1965 | London June Training | B01 Scandinavian |
20. W Hartston vs M Basman |
| 0-1 | 36 | 1965 | London June Training | B77 Sicilian, Dragon, Yugoslav Attack |
21. O M Hindle vs W Hartston |
| 1-0 | 27 | 1965 | London June Training | B48 Sicilian, Taimanov Variation |
22. G Chesters vs W Hartston |
| 0-1 | 30 | 1965 | London June Training | A07 King's Indian Attack |
23. W Hartston vs H D Holmes |
| ½-½ | 34 | 1965 | British Championship | B28 Sicilian, O'Kelly Variation |
24. M J Haygarth vs W Hartston |
 | 0-1 | 41 | 1965 | British Championship | A31 English, Symmetrical, Benoni Formation |
25. W Hartston vs T J Beach |
| ½-½ | 35 | 1965 | British Championship | B29 Sicilian, Nimzovich-Rubinstein |