| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. G Bonner vs W Watson |
| 0-1 | 31 |
1978 |
Ayr British ch | B20 Sicilian |
| 2. M Corden vs W Watson |
| 1-0 | 57 |
1978 |
Ayr British ch | B22 Sicilian, Alapin |
| 3. Plaskett vs W Watson |
| 1-0 | 51 |
1978 |
Ayr British ch | B23 Sicilian, Closed |
| 4. S Taulbut vs W Watson |
| 1-0 | 30 |
1978 |
Ayr British ch | B27 Sicilian |
| 5. E Jelling vs W Watson |
| 0-1 | 51 |
1981 |
open | B22 Sicilian, Alapin |
| 6. P Fransson vs W Watson |
| ½-½ | 17 |
1981 |
open | B74 Sicilian, Dragon, Classical |
| 7. L Schandorff vs W Watson |
| ½-½ | 8 |
1981 |
open | B50 Sicilian |
| 8. Short vs W Watson |
 | 1-0 | 54 |
1982 |
Brighton | B70 Sicilian, Dragon Variation |
| 9. J L Arnason vs W Watson |
| 1-0 | 42 |
1982 |
Brighton Grandmasters Tt | B75 Sicilian, Dragon, Yugoslav Attack |
| 10. Plaskett vs W Watson |
| 0-1 | 28 |
1983 |
Computer Games Ltd Brighton Grandmaster Tt | B76 Sicilian, Dragon, Yugoslav Attack |
| 11. Kupreichik vs W Watson |
| 1-0 | 52 |
1985 |
Frunze | B70 Sicilian, Dragon Variation |
| 12. Nunn vs W Watson |
| 0-1 | 30 |
1985 |
BCF-ch | B72 Sicilian, Dragon |
| 13. Velimirovic vs W Watson |
| 0-1 | 28 |
1986 |
Bor | B70 Sicilian, Dragon Variation |
| 14. Short vs W Watson |
| 1-0 | 39 |
1986 |
Lugano op | B70 Sicilian, Dragon Variation |
| 15. Rohde vs W Watson |
| ½-½ | 14 |
1987 |
Beersheva | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 16. Chandler vs W Watson |
| ½-½ | 29 |
1987 |
London (England) | B32 Sicilian |
| 17. Matulovic vs W Watson |
| ½-½ | 31 |
1988 |
Belgrade GMA op | B70 Sicilian, Dragon Variation |
| 18. Kholmov vs W Watson |
| ½-½ | 66 |
1988 |
Sochi | B70 Sicilian, Dragon Variation |
| 19. Psakhis vs W Watson |
| ½-½ | 22 |
1988 |
Sochi | B76 Sicilian, Dragon, Yugoslav Attack |
| 20. K Mokry vs W Watson |
| 1-0 | 36 |
1988 |
Arnold Cup | B50 Sicilian |
| 21. Chandler vs W Watson |
| ½-½ | 16 |
1988 |
Ch Great Britain | B70 Sicilian, Dragon Variation |
| 22. Jansa vs W Watson |
| 1-0 | 30 |
1988 |
Jansa,V | B70 Sicilian, Dragon Variation |
| 23. Hebden vs W Watson |
| 1-0 | 40 |
1989 |
London | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 24. J Gdanski vs W Watson |
| ½-½ | 23 |
1989 |
EU-chT (Men) | B76 Sicilian, Dragon, Yugoslav Attack |
| 25. Adams vs W Watson |
| 1-0 | 32 |
1990 |
Eastbourne | B21 Sicilian, 2.f4 and 2.d4 |
