| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. N Pert vs S Williams |
| 1-0 | 80 |
1994 |
Aberdeen op | A96 Dutch, Classical Variation |
| 2. Arkell vs S Williams |
| 1-0 | 63 |
1994 |
Lloyds Bank op 18th | A96 Dutch, Classical Variation |
| 3. Plaskett vs S Williams |
| 1-0 | 64 |
1997 |
BCF-ch 84th | A96 Dutch, Classical Variation |
| 4. N V Pedersen vs S Williams |
| 0-1 | 38 |
1998 |
Nordre Efteraar | A96 Dutch, Classical Variation |
| 5. A Cooper vs S Williams |
 | 0-1 | 22 |
1999 |
Ch Great Britain, Scarborough (England) | A96 Dutch, Classical Variation |
| 6. Sundararajan vs S Williams |
| 1-0 | 27 |
1999 |
Ch Great Britain, Scarborough (England) | A96 Dutch, Classical Variation |
| 7. James Vigus vs S Williams |
| ½-½ | 52 |
2000 |
Smith & Williamson YM 10th | A96 Dutch, Classical Variation |
| 8. Arkell vs S Williams |
| 1-0 | 59 |
2000 |
BCF-ch 87th | A96 Dutch, Classical Variation |
| 9. J Gallagher vs S Williams |
 | 0-1 | 35 |
2001 |
10th Monarch Assurance | A96 Dutch, Classical Variation |
| 10. C Beaumont vs S Williams |
| ½-½ | 67 |
2001 |
4NCL | A96 Dutch, Classical Variation |
| 11. T Nixon vs S Williams |
 | 0-1 | 34 |
2002 |
British Chess Championships | A96 Dutch, Classical Variation |
| 12. J Lechtynsky vs S Williams |
 | 0-1 | 40 |
2002 |
Budapest FS09 GM | A96 Dutch, Classical Variation |
| 13. D Dumitrache vs S Williams |
 | 0-1 | 28 |
2003 |
Festival de Montpellier - Masters | A96 Dutch, Classical Variation |
| 14. Timothy Woodward vs S Williams |
| ½-½ | 32 |
2003 |
BCF-ch | A96 Dutch, Classical Variation |
| 15. V Mikhalevski vs S Williams |
| 0-1 | 44 |
2003 |
Monarch Assurance 12th | A96 Dutch, Classical Variation |
| 16. C Crouch vs S Williams |
| ½-½ | 78 |
2003 |
Portsmouth op | A96 Dutch, Classical Variation |
| 17. Flear vs S Williams |
| 1-0 | 28 |
2003 |
Montpellier op | A96 Dutch, Classical Variation |
| 18. A Kuzmin vs S Williams |
| ½-½ | 23 |
2003 |
Monarch Assurance 12th | A96 Dutch, Classical Variation |
| 19. C Ward vs S Williams |
| 0-1 | 64 |
2004 |
Smith & Williamson British Championships | A96 Dutch, Classical Variation |
| 20. R Markus vs S Williams |
| ½-½ | 62 |
2005 |
6th European Individual Championship | A96 Dutch, Classical Variation |
| 21. F Bruno vs S Williams |
| ½-½ | 46 |
2005 |
6th European Individual Championship | A96 Dutch, Classical Variation |
| 22. S Knott vs S Williams |
| ½-½ | 24 |
2005 |
Smith & Williamson British Championships | A96 Dutch, Classical Variation |
| 23. J Cox vs S Williams |
| 1-0 | 27 |
2005 |
BCF-chT 0506 (4NCL) | A96 Dutch, Classical Variation |
| 24. Shirov vs S Williams |
| 1-0 | 33 |
2005 |
BCF-chT 0506 (4NCL) | A96 Dutch, Classical Variation |
| 25. Shirov vs S Williams |
 | 1-0 | 33 |
2006 |
Wijk aan Zee | A96 Dutch, Classical Variation |