| 24 jul 2026 | Herrmann, Arthur 2208 | Pfrommer, Christoph 2275 | ½-½ | C83 Apertura Española (Ruy López): Open, Classical Defense, Main Line | German Chess Championship 2026 | Candidates Men | 41 | Ver |
| 23 jul 2026 | Lesny, Florian 2272 | Herrmann, Arthur 2208 | ½-½ | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | German Chess Championship 2026 | Candidates Men | 68 | Ver |
| 22 jul 2026 | Herrmann, Arthur 2208 | Windmueller, Simon 2088 | 1-0 | C88 Apertura Española (Ruy López): Closed, Anti-Marshall | German Chess Championship 2026 | Candidates Men | 40 | Ver |
| 22 jul 2026 | Malek, Daniel 2312 | Herrmann, Arthur 2208 | 1-0 | A35 Apertura Inglesa: Symmetrical Variation, Four Knights Variation | German Chess Championship 2026 | Candidates Men | 45 | Ver |
| 21 jul 2026 | Herrmann, Arthur 2208 | Heinke, Jasper 2064 | 1-0 | C16 Defensa Francesa: Winawer Variation, Petrosian Variation | German Chess Championship 2026 | Candidates Men | 42 | Ver |
| 20 jul 2026 | Vyval, Volodymyr 2300 | Herrmann, Arthur 2208 | 1-0 | C24 Apertura de Alfil: Vienna Hybrid | German Chess Championship 2026 | Candidates Men | 55 | Ver |
| 20 jul 2026 | Herrmann, Arthur 2208 | Klaska, Philipp Leon 2315 | 0-1 | C41 Defensa Philidor: Lion Variation | German Chess Championship 2026 | Candidates Men | 36 | Ver |
| 19 jul 2026 | Lukas Schulz 2349 | Herrmann, Arthur 2208 | 0-1 | C34 Gambito de Rey aceptado: Fischer Defense | German Chess Championship 2026 | Candidates Men | 40 | Ver |
| 14 jun 2026 | Herrmann, Arthur 2127 | Englert, Luca 2301 | 1-0 | B96 Defensa Siciliana: Najdorf Variation | ROL 2026 - PublicStream | 46 | Ver |
| 14 jun 2026 | Stein, Robert 2405 | Herrmann, Arthur 2127 | 0-1 | A33 Apertura Inglesa: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | ROL 2026 - PublicStream | 75 | Ver |
| 3 abr 2026 | Herrmann, Arthur 2189 | Koepke, Christian 2345 | 0-1 | B36 Defensa Siciliana: Accelerated Dragon, Maróczy Bind | Grenke Chess Festival 2026 Open | 39 | Ver |
| 3 abr 2026 | Decuigniere, Tom 2423 | Herrmann, Arthur 2189 | 0-1 | E49 Defensa Nimzoindia: Normal Variation, Botvinnik System | Grenke Chess Festival 2026 Open | 53 | Ver |
| 6 ene 2026 | Herrmann, Arthur 2194 | Ronge, Tim 2284 | 0-1 | C80 Apertura Española (Ruy López): Open | 36. Staufer Open 2026 A | 79 | Ver |
| 3 ene 2026 | Neukirchner, Pascal 2341 | Herrmann, Arthur 2194 | 1-0 | A37 Apertura Inglesa: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | 36. Staufer Open 2026 A | 40 | Ver |
| 3 ene 2026 | Skembris, Spyridon 2310 | Herrmann, Arthur 2194 | ½-½ | D37 Gambito de Dama rehusado: Vienna Variation, Quiet Variation | 36. Staufer Open 2026 A | 62 | Ver |
| 2 ene 2026 | Herrmann, Arthur 2194 | Herbrig, Alexander 2315 | ½-½ | C72 Apertura Española (Ruy López): Morphy Defense, Modern Steinitz Defense | 36. Staufer Open 2026 A | 57 | Ver |
| 30 dic 2025 | Zhang, Yibo 2144 | Herrmann, Arthur 2172 | ½-½ | B13 Defensa Caro-Kann: Exchange Variation | DVM U16 2025 | 25 | Ver |
| 29 dic 2025 | Direk, Oguzhan 2026 | Herrmann, Arthur 2172 | ½-½ | D01 Rapport-Jobava System | DVM U16 2025 | 41 | Ver |
| 28 dic 2025 | Herrmann, Arthur 2172 | Blodig, Vincent 2147 | 1-0 | C95 Apertura Española (Ruy López): Closed, Breyer Defense, Zaitsev Hybrid | DVM U16 2025 | 54 | Ver |
| 28 dic 2025 | Herrmann, Arthur 2172 | Allen, Phillipp 2001 | 1-0 | B41 Defensa Siciliana: Kan Variation | DVM U16 2025 | 21 | Ver |