| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 651. W Hartston vs P J Sowray |
| 1-0 | 67 | 1980 | 4th Lloyds Bank Masters Open | A61 Benoni |
| 652. L Gutman vs W Hartston |
| 1-0 | 62 | 1980 | 4th Lloyds Bank Masters Open | A05 Reti Opening |
| 653. W Hartston vs Nunn |
| ½-½ | 31 | 1981 | British Championship playoff | E61 King's Indian |
| 654. Nunn vs W Hartston |
 | ½-½ | 64 | 1981 | British Championship playoff | B46 Sicilian, Taimanov Variation |
| 655. W Hartston vs Nunn |
| ½-½ | 32 | 1981 | British Championship playoff | A61 Benoni |
| 656. Nunn vs W Hartston |
| 1-0 | 37 | 1981 | British Championship playoff | B46 Sicilian, Taimanov Variation |
| 657. W Hartston vs Nunn |
| ½-½ | 22 | 1981 | British Championship playoff | A65 Benoni, 6.e4 |
| 658. Nunn vs W Hartston |
| ½-½ | 25 | 1981 | British Championship playoff | B46 Sicilian, Taimanov Variation |
| 659. W Hartston vs E Teichmann |
| 1-0 | 46 | 1981 | British Championship | A90 Dutch |
| 660. J C Pigott vs W Hartston |
| 1-0 | 40 | 1981 | British Championship | A56 Benoni Defense |
| 661. W Hartston vs O Jackson |
| 1-0 | 40 | 1981 | British Championship | A48 King's Indian |
| 662. Speelman vs W Hartston |
| ½-½ | 18 | 1981 | British Championship | D16 Queen's Gambit Declined Slav |
| 663. W Hartston vs J Ady |
| 1-0 | 33 | 1981 | British Championship | D02 Queen's Pawn Game |
| 664. R Bellin vs W Hartston |
| ½-½ | 25 | 1981 | British Championship | A43 Old Benoni |
| 665. W Hartston vs Chandler |
| 1-0 | 44 | 1981 | British Championship | A48 King's Indian |
| 666. P Littlewood vs W Hartston |
| 1-0 | 42 | 1981 | British Championship | A55 Old Indian, Main line |
| 667. W Hartston vs A D Martin |
| 1-0 | 40 | 1981 | British Championship | E10 Queen's Pawn Game |
| 668. J Horner vs W Hartston |
| 0-1 | 50 | 1981 | British Championship | B40 Sicilian |
| 669. W Hartston vs C Pritchett |
| ½-½ | 10 | 1981 | British Championship | D02 Queen's Pawn Game |
| 670. W Hartston vs G Kenworthy |
| 1-0 | 26 | 1982 | British Championship | B00 Uncommon King's Pawn Opening |
| 671. B A Jacobs vs W Hartston |
| 0-1 | 24 | 1982 | British Championship | D15 Queen's Gambit Declined Slav |
| 672. W Hartston vs M Hebden |
| ½-½ | 21 | 1982 | British Championship | A21 English |
| 673. Speelman vs W Hartston |
| ½-½ | 17 | 1982 | British Championship | D11 Queen's Gambit Declined Slav |
| 674. W Hartston vs A Kosten |
| 1-0 | 59 | 1982 | British Championship | D05 Queen's Pawn Game |
| 675. R Bellin vs W Hartston |
| ½-½ | 31 | 1982 | British Championship | D00 Queen's Pawn Game |
Kibitzing
