| Oct 5, 2025 | Polzin | 1–0 | Neumann | Deutsche Ländermeisterschaft 2025 | Caro-Kann Defense: Exchange Variation | |
| Oct 4, 2025 | Vranckx | 0–1 | Polzin | Deutsche Ländermeisterschaft 2025 | Caro-Kann Defense: Two Knights Attack | |
| Oct 3, 2025 | Naumann | 0–1 | Polzin | Deutsche Ländermeisterschaft 2025 | Caro-Kann Defense: Exchange Variation | |
| Oct 3, 2025 | Polzin | 0–1 | Tarasenko | Deutsche Ländermeisterschaft 2025 | Pirc Defense | |
| Oct 2, 2025 | De Jong | 0–1 | Polzin | Deutsche Ländermeisterschaft 2025 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Oct 1, 2025 | Polzin | 0–1 | Ratushnyi | Deutsche Ländermeisterschaft 2025 | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Oct 1, 2025 | Polzin | 1–0 | Schroeder | Deutsche Ländermeisterschaft 2025 | Tarrasch Defense: Symmetrical Variation | |
| Jun 14, 2025 | Vranckx | 0–1 | Polzin | DEM U14 2025 | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| Jun 13, 2025 | Polzin | 1–0 | Rodriguez Klasen | DEM U14 2025 | English Opening: King's English Variation, Two Knights Variation | |
| Jun 12, 2025 | Polzin | 1–0 | Kovalskyy | DEM U14 2025 | Bishop's Opening: Vienna Hybrid | |
| Jun 11, 2025 | Svanidze | 0–1 | Polzin | DEM U14 2025 | Sicilian Defense: Kan Variation, Knight Variation | |
| Jun 11, 2025 | Prashanthakumar | ½–½ | Polzin | DEM U14 2025 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Jun 10, 2025 | Polzin | 0–1 | Schroeder | DEM U14 2025 | Italian Game: Classical Variation, Greco Gambit | |
| Jun 9, 2025 | Boehler | 1–0 | Polzin | DEM U14 2025 | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Jun 8, 2025 | Polzin | ½–½ | Sydykov | DEM U14 2025 | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Jun 8, 2025 | Krueger | 0–1 | Polzin | DEM U14 2025 | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Mar 23, 2025 | Polzin | 1–0 | Lebedev | Round 5: Polzin, Gustav - Lebedev, Lion | Italian Game: Classical Variation, Greco Gambit | |
| Mar 22, 2025 | Polzin | 1–0 | Madzia | Round 3: Polzin, Gustav - Madzia, Nathan | Sicilian Defense: Closed, Traditional | |
| Mar 22, 2025 | Kais | 0–1 | Polzin | Round 4: Kais, Kristofer - Polzin, Gustav | Indian Defense | |
| Mar 21, 2025 | Polzin | 1–0 | Alfano | Round 1: Polzin, Gustav - Alfano, Emilie | Sicilian Defense: Closed | |
| Mar 21, 2025 | Koppenens | 0–1 | Polzin | Round 2: Koppenens, Oscar - Polzin, Gustav | Caro-Kann Defense: Two Knights Attack | |
| Apr 1, 2024 | Polzin | ½–½ | Bendahan | Round 5: Polzin, Gustav - Bendahan, Isaac | Sicilian Defense: Four Knights Variation | |
| Mar 31, 2024 | Stack | 0–1 | Polzin | Round 4: Stack, George - Polzin, Gustav | Caro-Kann Defense: Breyer Variation | |
| Mar 30, 2024 | Polzin | 1–0 | Wink | Round 3: Polzin, Gustav - Wink, Luka | Sicilian Defense: French Variation, Normal | |
| Mar 30, 2024 | Gorkov | 1–0 | Polzin | Round 2: Gorkov, Kirill - Polzin, Gustav | Caro-Kann Defense: Two Knights Attack | |
| Mar 30, 2024 | Polzin | 1–0 | Mence | Round 1: Polzin, Gustav - Mence, Eline | Caro-Kann Defense: Tartakower Variation | |
| Oct 6, 2021 | Eichhorn | 0–1 | Polzin | Deutsche Ländermeisterschaft 2021 | Sicilian Defense: Smith-Morra Gambit Accepted | |
| Oct 5, 2021 | Polzin | 1–0 | Khanbekyan | Deutsche Ländermeisterschaft 2021 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Oct 4, 2021 | Polzin | 0–1 | Buchinger | Deutsche Ländermeisterschaft 2021 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 4, 2021 | Bräutigam | 0–1 | Polzin | Deutsche Ländermeisterschaft 2021 | Sicilian Defense: Kan Variation, Modern Variation | |
| Oct 3, 2021 | Polzin | 1–0 | Dohon | Deutsche Ländermeisterschaft 2021 | Caro-Kann Defense: Bronstein-Larsen Variation | |
| Oct 2, 2021 | Polzin | 1–0 | Zöllner | Deutsche Ländermeisterschaft 2021 | Sicilian Defense: Lasker-Pelikan Variation | |
| Oct 2, 2021 | Evering | 0–1 | Polzin | Deutsche Ländermeisterschaft 2021 | Sicilian Defense: Kan Variation, Knight Variation | |
| Aug 29, 2021 | Polzin | ½–½ | Stichter | DEM U10 2021 | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Aug 28, 2021 | Bundan | 0–1 | Polzin | DEM U10 2021 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Aug 28, 2021 | Buchinger | 1–0 | Polzin | DEM U10 2021 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 27, 2021 | Polzin | 0–1 | Glöckler | DEM U10 2021 | Sicilian Defense: Classical Variation | |
| Aug 26, 2021 | Polzin | ½–½ | Herrmann | DEM U10 2021 | Sicilian Defense: Modern Variations, Ginsberg Gambit | |
| Aug 26, 2021 | Rau | 0–1 | Polzin | DEM U10 2021 | Sicilian Defense: French Variation | |
| Aug 25, 2021 | Fadeev | 0–1 | Polzin | DEM U10 2021 | Sicilian Defense: Kan Variation, Modern Variation | |
| Aug 24, 2021 | Polzin | 1–0 | Seth | DEM U10 2021 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line | |
| Aug 24, 2021 | Vranckx | 0–1 | Polzin | DEM U10 2021 | Sicilian Defense: French Variation | |
| Aug 23, 2021 | Polzin | 0–1 | Merenda | DEM U10 2021 | Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack | |
| Aug 23, 2021 | Xu | 0–1 | Polzin | DEM U10 2021 | Sicilian Defense: French Variation | |
| Jun 27, 2021 | Polzin | ½–½ | Krömer | DVM U14 2020 | Scandinavian Defense: Main Line, Mieses Variation | |
| Jun 26, 2021 | Brinkschröder | 0–1 | Polzin | DVM U14 2020 | Indian Defense: Spielmann-Indian | |
| Jun 26, 2021 | Krishnachandran | 0–1 | Polzin | DVM U14 2020 | Sicilian Defense: Kan Variation, Modern Variation | |
| Jun 25, 2021 | Polzin | 1–0 | Popovici | DVM U14 2021 | Sicilian Defense: Najdorf Variation | |
| Jun 24, 2021 | Polzin | 1–0 | Timmermann | DVM U14 2021 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 24, 2021 | Fuhrmann | * | Polzin | DVM U14 2021 | Sicilian Defense: French Variation | |
