| Dec 30, 2025 | Riechenberg | 0–1 | Marcziter | DVM U20 2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Dec 29, 2025 | Marcziter | 1–0 | Staub | DVM U20 2025 | King's Indian Attack: Yugoslav Variation | |
| Dec 29, 2025 | Marcziter | 0–1 | Reyes Mantilla | DVM U20 2025 | Sicilian Defense: Old Sicilian | |
| Dec 28, 2025 | Deschler | ½–½ | Marcziter | DVM U20 2025 | Pirc Defense: 150 Attack | |
| Dec 28, 2025 | Bornemann | 0–1 | Marcziter | DVM U20 2025 | Indian Defense | |
| Dec 27, 2025 | Marcziter | ½–½ | Teucher | DVM U20 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 27, 2025 | Christen | ½–½ | Marcziter | DVM U20 2025 | King's Indian Defense: Orthodox Variation | |
| Nov 23, 2025 | Marcziter | 0–1 | Mastiuk | Heusenstamm Sparkassen Open 2025 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line | |
| Oct 18, 2025 | Marcziter | ½–½ | Woestmann | Runde 9: Marcziter, Alex - Woestmann, Hans-Joachim | King's Indian Attack: Sicilian Variation | |
| Oct 17, 2025 | Mazur | 1–0 | Marcziter | Runde 8: Mazur, Stefan - Marcziter, Alex | Four Knights Game: Spanish Variation, Symmetrical Variation | |
| Oct 16, 2025 | Marcziter | 1–0 | Heiligtag | Runde 7: Marcziter, Alex - Heiligtag, Matthias | French Defense: King's Indian Attack | |
| Oct 15, 2025 | Lymar | 1–0 | Marcziter | Runde 6: Lymar, Vladislav - Marcziter, Alex | Pirc Defense: Austrian Attack, Kurajica Variation | |
| Oct 14, 2025 | Marcziter | 1–0 | Allen | Runde 5: Marcziter, Alex - Allen, Phillipp | Philidor Defense: Lion Variation, Shirov Gambit | |
| Oct 12, 2025 | Marcziter | 1–0 | Riechenberg | Runde 3: Marcziter, Alex - Riechenberg, Sebastian | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Oct 12, 2025 | Shynkar | 0–1 | Marcziter | Runde 2: Shynkar, Daria - Marcziter, Alex | King's Indian Defense: Makogonov Variation | |
| Oct 11, 2025 | Marcziter | 1–0 | Hoffmann | Runde 1: Marcziter, Alex - Hoffmann, Nico | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Oct 11, 2025 | Liu | 1–0 | Marcziter | Runde 4: Liu, Yi - Marcziter, Alex | King's Indian Defense: Semi-Classical Variation | |
| Jun 14, 2025 | Marcziter | 0–1 | Mester | DEM U16 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 13, 2025 | Schwitkowski | 0–1 | Marcziter | DEM U16 2025 | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Jun 12, 2025 | Lu | 1–0 | Marcziter | DEM U16 2025 | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Jun 11, 2025 | Marcziter | ½–½ | Jahnz | DEM U16 2025 | King's Indian Attack: Sicilian Variation | |
| Jun 11, 2025 | Marcziter | 1–0 | Blodig | DEM U16 2025 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 10, 2025 | Malinowsky | 1–0 | Marcziter | DEM U16 2025 | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Jun 8, 2025 | Atoyan | 0–1 | Marcziter | DEM U16 2025 | Scotch Game: Potter Variation | |
| Jun 8, 2025 | Marcziter | 1–0 | Khachaturyan | DEM U16 2025 | King's Indian Attack | |
| Jun 6, 2025 | Marcziter | 0–1 | Korchynskyi | DEM U16 2025 | King's Indian Attack: Double Fianchetto | |
| Dec 30, 2024 | Marcziter | ½–½ | Noennig | DVM U14 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 29, 2024 | Marcziter | 1–0 | Aweh | DVM U14 2024 | Sicilian Defense: Closed, Fianchetto Variation | |
| Dec 29, 2024 | Klein | ½–½ | Marcziter | DVM U14 2024 | King's Indian Defense: Orthodox Variation, Positional Defense, Closed Line | |
| Dec 28, 2024 | Marcziter | 1–0 | Bauer | DVM U14 2024 | Sicilian Defense: Closed | |
| Dec 28, 2024 | Schwitkowski | 0–1 | Marcziter | DVM U14 2024 | King's Indian Defense: Makogonov Variation | |
| Dec 27, 2024 | Marcziter | 1–0 | Meng | DVM U14 2024 | Sicilian Defense: Closed | |
| Dec 27, 2024 | Rodriguez Klasen | 0–1 | Marcziter | DVM U14 2024 | Ruy Lopez: Morphy Defense, Bayreuth Variation | |
| Oct 19, 2024 | Schulte | 1–0 | Marcziter | Round 9: Schulte, Tobias - Marcziter, Alex | Trompowsky Attack | |
| Oct 18, 2024 | Marcziter | 0–1 | Sharvaanica A S | Round 8: Marcziter, Alex - Sharvaanica A S | French Defense: Advance Variation, Paulsen Attack | |
| Oct 17, 2024 | Darshan G | ½–½ | Marcziter | Round 7: Darshan G - Marcziter, Alex | Indian Defense | |
| Oct 16, 2024 | Marcziter | ½–½ | Herzwurm | Round 6: Marcziter, Alex - Herzwurm, Robert | French Defense: Advance Variation, Euwe Variation | |
| Oct 15, 2024 | Neumann | ½–½ | Marcziter | Round 5: Neumann, Helena - Marcziter, Alex | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 14, 2024 | Marcziter | 1–0 | Bartsch | Round 4: Marcziter, Alex - Bartsch, Rainer | Philidor Defense: Lion Variation, Forcing Line | |
| Oct 13, 2024 | Oeztekin | ½–½ | Marcziter | Round 3: Oeztekin, Taylan - Marcziter, Alex | Four Knights Game: Scotch Variation Accepted | |
| Oct 13, 2024 | Marcziter | 0–1 | Feldmann | Round 2: Marcziter, Alex - Feldmann, Johannes | Caro-Kann Defense: Classical Variation, Main Line | |
| Oct 12, 2024 | Friederici | 0–1 | Marcziter | Round 1: Friederici, Gerhard - Marcziter, Alex | Four Knights Game: Italian Variation, Noa Gambit | |
| Aug 3, 2024 | Marcziter | 0–1 | Cramer | Round 5: Marcziter, Alex - Cramer, Philipp | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Aug 2, 2024 | Marcziter | 1–0 | Helms | Round 3: Marcziter, Alex - Helms, Sven | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 2, 2024 | Andresen | 0–1 | Marcziter | Round 4: Andresen, Marc - Marcziter, Alex | Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation | |
| Aug 1, 2024 | Roess | ½–½ | Marcziter | Round 1: Roess, Jonas - Marcziter, Alex | Ruy Lopez: Morphy Defense, Anderssen Variation | |