| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. H Thuner vs M Diotallevi |
| ½-½ | 23 | 2002 | Arco Open | C02 French, Advance |
| 27. M Diotallevi vs K Gerstl |
| 1-0 | 60 | 2002 | Arco Open | A45 Queen's Pawn Game |
| 28. J Ager vs M Diotallevi |
| ½-½ | 24 | 2002 | Arco Open | A04 Reti Opening |
| 29. M Diotallevi vs E Weinberg |
| ½-½ | 48 | 2002 | Arco Open | A45 Queen's Pawn Game |
| 30. J Swinkels vs M Diotallevi |
| 0-1 | 36 | 2002 | Arco Open | C07 French, Tarrasch |
| 31. M Diotallevi vs G Benaglia |
| 1-0 | 42 | 2002 | Arco Open | D51 Queen's Gambit Declined |
| 32. M Diotallevi vs N A Legky |
| 0-1 | 51 | 2003 | Valle d'Aosta Open | A45 Queen's Pawn Game |
| 33. M Diotallevi vs M Mrdja |
| 0-1 | 52 | 2004 | Salsomaggiore Terme op 8th | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 34. V Iordachescu vs M Diotallevi |
| 1-0 | 54 | 2004 | Aosta Open | C10 French |
| 35. M Diotallevi vs E Di Cio |
| ½-½ | 49 | 2005 | Arco Open | A46 Queen's Pawn Game |
| 36. M Scola vs M Diotallevi |
| 0-1 | 30 | 2005 | Arco Open | D31 Queen's Gambit Declined |
| 37. M Diotallevi vs I Edvardsen |
| 1-0 | 47 | 2005 | Arco Open | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 38. V Bronznik vs M Diotallevi |
| ½-½ | 36 | 2005 | Arco Open | D35 Queen's Gambit Declined |
| 39. M Diotallevi vs J Ager |
| ½-½ | 19 | 2005 | Arco Open | E94 King's Indian, Orthodox |
| 40. E Moser vs M Diotallevi |
| 1-0 | 106 | 2005 | Arco Open | A07 King's Indian Attack |
| 41. M Diotallevi vs L Allegranti |
| 1-0 | 33 | 2005 | Arco Open | C00 French Defense |
| 42. M Schaefer vs M Diotallevi |
| ½-½ | 23 | 2005 | Arco Open | E06 Catalan, Closed, 5.Nf3 |
| 43. M Diotallevi vs U Scotti |
| ½-½ | 24 | 2005 | Arco Open | A84 Dutch |
| 44. M Diotallevi vs O Foisor |
| 0-1 | 43 | 2007 | Cannes Open | A56 Benoni Defense |
| 45. N Clery vs M Diotallevi |
| 1-0 | 28 | 2007 | Cannes Open | A12 English with b3 |
| 46. M Leconte vs M Diotallevi |
| 1-0 | 28 | 2007 | Cannes Open | C18 French, Winawer |
| 47. M Diotallevi vs Korchnoi |
| 0-1 | 39 | 2012 | Bad Woerishofen op 28th | A43 Old Benoni |
| 48. M Diotallevi vs J Sieglen |
| 0-1 | 48 | 2016 | Bavarian Open | C01 French, Exchange |
Kibitzing
