| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. S G Peters vs M Thiruchelvam |
| ½-½ | 76 | 1999 | Isle of Man Open | D50 Queen's Gambit Declined |
| 27. M Thiruchelvam vs A Longson |
| ½-½ | 45 | 1999 | Isle of Man Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 28. A Jackson vs M Thiruchelvam |
| 1-0 | 38 | 1999 | Isle of Man Open | A45 Queen's Pawn Game |
| 29. M Thiruchelvam vs E Player |
| 1-0 | 40 | 1999 | Isle of Man Open | C05 French, Tarrasch |
| 30. M Thiruchelvam vs D F Hill |
| ½-½ | 19 | 1999 | Isle of Man Open | B40 Sicilian |
| 31. F T Naes vs M Thiruchelvam |
| 1-0 | 70 | 1999 | Isle of Man Open | B13 Caro-Kann, Exchange |
| 32. M Goodger vs M Thiruchelvam |
| 0-1 | 60 | 1999 | Isle of Man Open | A02 Bird's Opening |
| 33. S J Barrett vs M Thiruchelvam |
| 0-1 | 33 | 2000 | BCF-chT 0001 (4NCL) | A57 Benko Gambit |
| 34. Radjabov vs M Thiruchelvam |
| ½-½ | 30 | 2000 | KasparovChess Cadet GP net | D02 Queen's Pawn Game |
| 35. M Thiruchelvam vs Radjabov |
| 0-1 | 67 | 2000 | KasparovChess Cadet GP net | C05 French, Tarrasch |
| 36. M Thiruchelvam vs G A Larson |
| ½-½ | 36 | 2000 | 28th World Open | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 37. J Stolerman vs M Thiruchelvam |
| ½-½ | 20 | 2000 | 28th World Open | B14 Caro-Kann, Panov-Botvinnik Attack |
| 38. M Thiruchelvam vs J V Weber |
| 0-1 | 45 | 2000 | 28th World Open | B53 Sicilian |
| 39. S Shchukin vs M Thiruchelvam |
 | 1-0 | 31 | 2000 | 28th World Open | B10 Caro-Kann |
| 40. Koneru vs M Thiruchelvam |
| ½-½ | 54 | 2000 | Smith & Williamson Young Masters | A43 Old Benoni |
| 41. M Panchanathan vs M Thiruchelvam |
| 1-0 | 47 | 2000 | Smith & Williamson Young Masters | B14 Caro-Kann, Panov-Botvinnik Attack |
| 42. M Thiruchelvam vs L D'Costa |
| ½-½ | 15 | 2000 | Smith & Williamson Young Masters | B30 Sicilian |
| 43. T Hansen vs M Thiruchelvam |
| ½-½ | 92 | 2000 | Smith & Williamson Young Masters | A27 English, Three Knights System |
| 44. M Thiruchelvam vs R Pert |
| ½-½ | 28 | 2000 | Smith & Williamson Young Masters | B53 Sicilian |
| 45. M Broomfield vs M Thiruchelvam |
| ½-½ | 28 | 2000 | Smith & Williamson Young Masters | A31 English, Symmetrical, Benoni Formation |
| 46. M Thiruchelvam vs S Williams |
| 0-1 | 74 | 2000 | Smith & Williamson Young Masters | C18 French, Winawer |
| 47. M Thiruchelvam vs J Conlon |
| ½-½ | 38 | 2000 | Smith & Williamson Young Masters | B01 Scandinavian |
| 48. M Thiruchelvam vs A D Martin |
| 0-1 | 33 | 2001 | 4NCL | B08 Pirc, Classical |
| 49. D Hassabis vs M Thiruchelvam |
| 0-1 | 54 | 2001 | 4NCL | A25 English |
| 50. M Thiruchelvam vs A Collinson |
| 0-1 | 37 | 2001 | 4NCL | B53 Sicilian |
Kibitzing
