| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 801. F Blohberger vs D Mastrovasilis |
 | 1-0 | 62 | 2023 | FIDE World Cup | B41 Sicilian, Kan |
| 802. D Mastrovasilis vs F Blohberger |
| 1-0 | 70 | 2023 | FIDE World Cup | C45 Scotch Game |
| 803. F Blohberger vs D Mastrovasilis |
| 0-1 | 54 | 2023 | FIDE World Cup | B28 Sicilian, O'Kelly Variation |
| 804. V S Gujrathi vs D Mastrovasilis |
| ½-½ | 31 | 2023 | FIDE World Cup | D50 Queen's Gambit Declined |
| 805. D Mastrovasilis vs V S Gujrathi |
 | ½-½ | 24 | 2023 | FIDE World Cup | C47 Four Knights |
| 806. D Mastrovasilis vs V S Gujrathi |
| ½-½ | 21 | 2023 | FIDE World Cup | C44 King's Pawn Game |
| 807. V S Gujrathi vs D Mastrovasilis |
| ½-½ | 44 | 2023 | FIDE World Cup | B40 Sicilian |
| 808. D Mastrovasilis vs V S Gujrathi |
| ½-½ | 32 | 2023 | FIDE World Cup | C53 Giuoco Piano |
| 809. V S Gujrathi vs D Mastrovasilis |
| ½-½ | 47 | 2023 | FIDE World Cup | D35 Queen's Gambit Declined |
| 810. V S Gujrathi vs D Mastrovasilis |
| 1-0 | 40 | 2023 | FIDE World Cup | B40 Sicilian |
| 811. D Mastrovasilis vs V S Gujrathi |
| ½-½ | 45 | 2023 | FIDE World Cup | C53 Giuoco Piano |
| 812. D Mastrovasilis vs M Poulsen |
| 1-0 | 45 | 2023 | 24th European Teams | C10 French |
| 813. D Mastrovasilis vs M Warmerdam |
| ½-½ | 17 | 2023 | 24th European Teams | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 814. V Kazakouski vs D Mastrovasilis |
| ½-½ | 76 | 2023 | 24th European Teams | C55 Two Knights Defense |
| 815. D Mastrovasilis vs D Howell |
| ½-½ | 45 | 2023 | 24th European Teams | C91 Ruy Lopez, Closed |
| 816. Mamedyarov vs D Mastrovasilis |
| ½-½ | 88 | 2023 | 24th European Teams | A06 Reti Opening |
| 817. Wojtaszek vs D Mastrovasilis |
| ½-½ | 30 | 2023 | 24th European Teams | E04 Catalan, Open, 5.Nf3 |
| 818. Wojtaszek vs D Mastrovasilis |
| ½-½ | 30 | 2023 | 24th European Teams | E04 Catalan, Open, 5.Nf3 |
| 819. D Mastrovasilis vs G Sargissian |
| ½-½ | 85 | 2023 | 24th European Teams | C47 Four Knights |
| 820. D Mastrovasilis vs S Escalona Landi |
| ½-½ | 84 | 2024 | Budapest Olympiad | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 821. D Fitzsimons vs D Mastrovasilis |
| 1-0 | 31 | 2024 | Budapest Olympiad | B30 Sicilian |
| 822. M Kanep vs D Mastrovasilis |
| ½-½ | 41 | 2024 | Budapest Olympiad | D35 Queen's Gambit Declined |
| 823. D Mastrovasilis vs Dominguez Perez |
| 0-1 | 31 | 2024 | Budapest Olympiad | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 824. L Draskovic vs D Mastrovasilis |
| ½-½ | 39 | 2024 | Budapest Olympiad | C55 Two Knights Defense |
| 825. R Vasquez Schroeder vs D Mastrovasilis |
| ½-½ | 43 | 2024 | Budapest Olympiad | C82 Ruy Lopez, Open |
Kibitzing
