| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Sarah Hegarty vs M Lyell |
| 0-1 | 44 |
2001 |
Ron Banwell Masters | A01 Nimzovich-Larsen Attack |
| 27. D M Adams vs M Lyell |
| 1-0 | 42 |
2001 |
Smith & Williamson ch-GBR | C23 Bishop's Opening |
| 28. M Lyell vs G Buckley |
| 1-0 | 40 |
2001 |
Ron Banwell Masters | C02 French, Advance |
| 29. O Aikhoje vs M Lyell |
| 1-0 | 51 |
2001 |
Ron Banwell Masters | A04 Reti Opening |
| 30. M Lyell vs S Williams |
| 0-1 | 33 |
2001 |
Smith & Williamson ch-GBR | C02 French, Advance |
| 31. M Lyell vs A S Dekker |
| 0-1 | 57 |
2001 |
Ron Banwell Masters | B22 Sicilian, Alapin |
| 32. M Lyell vs G Lee |
| 0-1 | 38 |
2001 |
4NCL | C02 French, Advance |
| 33. M Lyell vs J Goldberg |
| ½-½ | 46 |
2002 |
British Chess Championships | B14 Caro-Kann, Panov-Botvinnik Attack |
| 34. M Lyell vs M Harborne |
| 0-1 | 29 |
2002 |
British Chess Championships | B12 Caro-Kann Defense |
| 35. M Lyell vs M Taylor |
| 0-1 | 33 |
2004 |
Smith & Williamson British Championships | C45 Scotch Game |
| 36. S Williams vs M Lyell |
 | 1-0 | 46 |
2004 |
Smith & Williamson British Championships | A80 Dutch |
| 37. M Lyell vs P Sowray |
| ½-½ | 62 |
2004 |
Smith & Williamson British Championships | B22 Sicilian, Alapin |
| 38. S Knott vs M Lyell |
| 1-0 | 26 |
2004 |
Smith & Williamson British Championships | A04 Reti Opening |
| 39. R Martyn vs M Lyell |
| 0-1 | 70 |
2004 |
Smith & Williamson British Championships | A40 Queen's Pawn Game |
| 40. M Lyell vs D Howell |
 | 1-0 | 45 |
2004 |
Smith & Williamson British Championships | C29 Vienna Gambit |
| 41. M Lyell vs G Kafka |
| 1-0 | 60 |
2004 |
Smith & Williamson British Championships | B20 Sicilian |
| 42. T Pym vs M Lyell |
| 0-1 | 59 |
2004 |
Smith & Williamson British Championships | C63 Ruy Lopez, Schliemann Defense |
| 43. R Gwaze vs M Lyell |
 | 1-0 | 40 |
2004 |
Smith & Williamson British Championships | C55 Two Knights Defense |
| 44. M Lyell vs R Westwood |
| ½-½ | 71 |
2004 |
Smith & Williamson British Championships | B13 Caro-Kann, Exchange |
| 45. Cherniaev vs M Lyell |
| 1-0 | 30 |
2005 |
Bremen win the Bundesliga | D25 Queen's Gambit Accepted |
| 46. J Fluvia vs M Lyell |
| 1-0 | 23 |
2005 |
It (open) | C63 Ruy Lopez, Schliemann Defense |
| 47. M Bosboom vs M Lyell |
| 1-0 | 32 |
2005 |
Amsterdam Chess Tournament | D25 Queen's Gambit Accepted |
| 48. M Lyell vs Cuadras Avellana Jorge |
| 1-0 | 28 |
2005 |
It (open) | B14 Caro-Kann, Panov-Botvinnik Attack |
| 49. M Lyell vs E L'Ami |
| 0-1 | 30 |
2005 |
Amsterdam Chess Tournament | C02 French, Advance |
| 50. S Bromberger vs M Lyell |
| 1-0 | 23 |
2005 |
It (open) | D02 Queen's Pawn Game |