| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. A Mastrovasilis vs A Koustas |
| 1-0 | 52 | 1999 | Corinth Open | A40 Queen's Pawn Game |
| 52. G Souleidis vs A Mastrovasilis |
| 1-0 | 45 | 1999 | Corinth Open | A07 King's Indian Attack |
| 53. G Kanellopoulos vs A Mastrovasilis |
| 0-1 | 41 | 1999 | European Junior Championship | A15 English |
| 54. A Mastrovasilis vs R Fontaine |
| 0-1 | 40 | 1999 | European Junior Championship | A26 English |
| 55. M Guid vs A Mastrovasilis |
| 0-1 | 39 | 1999 | European Junior Championship | B30 Sicilian |
| 56. A Mastrovasilis vs N Anchev |
| ½-½ | 36 | 1999 | European Junior Championship | E17 Queen's Indian |
| 57. Z Medvegy vs A Mastrovasilis |
| 1-0 | 51 | 1999 | European Junior Championship | B48 Sicilian, Taimanov Variation |
| 58. A Mastrovasilis vs S Streikus |
| 1-0 | 41 | 1999 | European Junior Championship | A04 Reti Opening |
| 59. R Bagirov vs A Mastrovasilis |
| 0-1 | 52 | 1999 | European Junior Championship | E12 Queen's Indian |
| 60. A Mastrovasilis vs F Doettling |
| ½-½ | 13 | 1999 | European Junior Championship | A13 English |
| 61. Z Jovanovic vs A Mastrovasilis |
| ½-½ | 20 | 1999 | European Junior Championship | B43 Sicilian, Kan, 5.Nc3 |
| 62. A Mastrovasilis vs J M Lopez Martinez |
| ½-½ | 41 | 1999 | European Junior Championship | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 63. A Mastrovasilis vs R Cvek |
| ½-½ | 13 | 1999 | European Junior Championship | A37 English, Symmetrical |
| 64. H Kallio vs A Mastrovasilis |
| 1-0 | 64 | 1999 | European Junior Championship | A07 King's Indian Attack |
| 65. A Mastrovasilis vs T Petrik |
| 1-0 | 53 | 1999 | European Junior Championship | E06 Catalan, Closed, 5.Nf3 |
| 66. A Mastrovasilis vs E Bribos |
| ½-½ | 32 | 1999 | Tower op | A15 English |
| 67. A Mastrovasilis vs S Ovsejevitsch |
| ½-½ | 42 | 2000 | Patras op | E43 Nimzo-Indian, Fischer Variation |
| 68. A Rychagov vs A Mastrovasilis |
| 1-0 | 48 | 2000 | GRE-chT 29th | D38 Queen's Gambit Declined, Ragozin Variation |
| 69. H Banikas vs A Mastrovasilis |
| ½-½ | 17 | 2000 | Greek Chess Championship | E10 Queen's Pawn Game |
| 70. A Mastrovasilis vs I Nikolaidis |
| ½-½ | 7 | 2000 | Greek Chess Championship | B06 Robatsch |
| 71. S Halkias vs A Mastrovasilis |
| 1-0 | 56 | 2000 | Greek Chess Championship | D38 Queen's Gambit Declined, Ragozin Variation |
| 72. A Moroz vs A Mastrovasilis |
 | 1-0 | 40 | 2001 | Antalya | C68 Ruy Lopez, Exchange |
| 73. A Mastrovasilis vs C Arduman |
| ½-½ | 22 | 2001 | Antalya | A06 Reti Opening |
| 74. M Erdogdu vs A Mastrovasilis |
| 0-1 | 22 | 2001 | Antalya | B42 Sicilian, Kan |
| 75. A Mastrovasilis vs H Erdogan |
| 1-0 | 33 | 2001 | Antalya | A07 King's Indian Attack |
Kibitzing
