| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. D Mastrovasilis vs Sundararajan |
| 1-0 | 48 |
2002 |
41st World Junior Championships | C68 Ruy Lopez, Exchange |
| 2. D Mastrovasilis vs G Mastrokoukos |
| 1-0 | 37 |
2003 |
12th OPEN KAVALA | C96 Ruy Lopez, Closed |
| 3. D Mastrovasilis vs J Jirka |
| 1-0 | 33 |
2003 |
World Junior Championships | C61 Ruy Lopez, Bird's Defense |
| 4. D Mastrovasilis vs D Bojkov |
| 1-0 | 35 |
2005 |
15th European Team Championship | C68 Ruy Lopez, Exchange |
| 5. D Mastrovasilis vs S Kapnisis |
| 1-0 | 55 |
2006 |
Acropolis Tournament | C78 Ruy Lopez |
| 6. D Mastrovasilis vs A Dimitrov |
| 1-0 | 60 |
2006 |
35th Greek Team Championship | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 7. D Mastrovasilis vs C D'Amore |
| 1-0 | 35 |
2007 |
European Team Chess Championships | C67 Ruy Lopez |
| 8. D Mastrovasilis vs K Pilgaard |
| 1-0 | 66 |
2008 |
Euro Club Cup | C68 Ruy Lopez, Exchange |
| 9. D Mastrovasilis vs I Khmelniker |
| 1-0 | 42 |
2008 |
European Individual Championship | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 10. D Mastrovasilis vs S J Solomon |
| 1-0 | 77 |
2009 |
2nd Queenstown Chess Classic | C98 Ruy Lopez, Closed, Chigorin |
| 11. D Mastrovasilis vs P Hohler |
| 1-0 | 44 |
2009 |
2nd Queenstown Chess Classic | C91 Ruy Lopez, Closed |
| 12. D Mastrovasilis vs T Stevens |
| 1-0 | 37 |
2009 |
2nd Queenstown Chess Classic | C68 Ruy Lopez, Exchange |
| 13. D Mastrovasilis vs L Lenic |
| 1-0 | 38 |
2009 |
17th European Team Championship | C78 Ruy Lopez |
| 14. D Mastrovasilis vs N Nestorovic |
| 1-0 | 34 |
2009 |
10th European Individual Championship | C78 Ruy Lopez |
| 15. D Mastrovasilis vs O Sepp |
| 1-0 | 53 |
2010 |
Chess Olympiad | C65 Ruy Lopez, Berlin Defense |
| 16. D Mastrovasilis vs W Sarwat |
| 1-0 | 43 |
2010 |
World Team Championship | C91 Ruy Lopez, Closed |
| 17. D Mastrovasilis vs E Inarkiev |
| 1-0 | 55 |
2011 |
12th European Individual Championship | C93 Ruy Lopez, Closed, Smyslov Defense |
| 18. D Mastrovasilis vs A Gutov |
| 1-0 | 36 |
2011 |
12th European Individual Championship | C97 Ruy Lopez, Closed, Chigorin |
| 19. D Mastrovasilis vs K Akshayraj |
| 1-0 | 46 |
2012 |
21st Kavala Open A | C67 Ruy Lopez |
| 20. D Mastrovasilis vs K Nikolaidis |
| 1-0 | 46 |
2012 |
21st Kavala Open A | C86 Ruy Lopez, Worrall Attack |
| 21. D Mastrovasilis vs I Georgiadis |
| 1-0 | 44 |
2012 |
13th European Individual Championship | C68 Ruy Lopez, Exchange |
| 22. D Mastrovasilis vs D Sadzikowski |
| 1-0 | 41 |
2012 |
XXIII Krakow Open | C67 Ruy Lopez |
| 23. D Mastrovasilis vs K Denny |
| 1-0 | 42 |
2012 |
Chess Olympiad | C68 Ruy Lopez, Exchange |
