| 8 abr 2026 | Bogner, Sebastian 2550 | Katz, Alexander 2371 | 1-0 | D37 Queen's Gambit Declined: Three Knights Variation | V Open Chess Menorca 2026 | Open A | 36 | Ver |
| 6 abr 2026 | Katz, Alexander 2371 | Sivuk, Vitaly 2522 | ½-½ | B60 Sicilian Defense: Richter-Rauzer Variation, Modern Variation | X Open Semana Santa 2026 - Grupo A | 24 | Ver |
| 5 abr 2026 | Safarov, Deniel 2256 | Katz, Alexander 2371 | 0-1 | A13 English Opening: Agincourt Defense, Catalan Defense Accepted | X Open Semana Santa 2026 - Grupo A | 21 | Ver |
| 4 abr 2026 | Piorun, Kacper 2536 | Katz, Alexander 2371 | 1-0 | A13 English Opening: Agincourt Defense, Catalan Defense Accepted | X Open Semana Santa 2026 - Grupo A | 62 | Ver |
| 3 abr 2026 | Katz, Alexander 2371 | Chen, Qi b 2484 | ½-½ | C41 Philidor Defense: Lion Variation | X Open Semana Santa 2026 - Grupo A | 58 | Ver |
| 3 abr 2026 | Fedorchuk, Sergey A. 2585 | Katz, Alexander 2371 | ½-½ | C54 Italian Game: Classical Variation, Giuoco Pianissimo | X Open Semana Santa 2026 - Grupo A | 51 | Ver |
| 2 abr 2026 | Katz, Alexander 2371 | Sala Esquiva, Miguel 2117 | 1-0 | B35 Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | X Open Semana Santa 2026 - Grupo A | 23 | Ver |
| 12 oct 2025 | Katz, Alexander 2398 | Adewumi, Tanitoluwa 2467 | ½-½ | B47 Sicilian Defense: Taimanov Variation, Bastrikov Variation | 2025 Marshall Chess Club Rapid & Blitz Championship | Blitz | 94 | Ver |
| 12 oct 2025 | Brodsky, David 2469 | Katz, Alexander 2398 | ½-½ | C54 Italian Game: Classical Variation, Giuoco Pianissimo | 2025 Marshall Chess Club Rapid & Blitz Championship | Blitz | 66 | Ver |
| 12 oct 2025 | Katz, Alexander 2398 | Zhu, Linxi 2189 | 1-0 | B51 Sicilian Defense: Moscow Variation | 2025 Marshall Chess Club Rapid & Blitz Championship | Blitz | 46 | Ver |
| 12 oct 2025 | Nasta, Kiren Vivek 2107 | Katz, Alexander 2398 | ½-½ | B08 Pirc Defense: Classical Variation, Quiet System | 2025 Marshall Chess Club Rapid & Blitz Championship | Blitz | 61 | Ver |
| 12 oct 2025 | Katz, Alexander 2398 | Lee, Rohan 2004 | 1-0 | B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | 2025 Marshall Chess Club Rapid & Blitz Championship | Blitz | 41 | Ver |
| 12 oct 2025 | George, Kevin 2257 | Katz, Alexander 2349 | ½-½ | E05 Catalan Opening: Open Defense, Classical Line | 2025 Marshall Chess Club Rapid & Blitz Championship | Rapid | 18 | Ver |
| 11 oct 2025 | Smith, Daniel 2022 | Katz, Alexander 2349 | 0-1 | D01 Rapport-Jobava System | 2025 Marshall Chess Club Rapid & Blitz Championship | Rapid | 30 | Ver |
| 9 oct 2025 | Bortnyk, Mykola 2651 | Katz, Alexander 2398 | 1-0 | B07 Pirc Defense | 2025 Marshall Chess Club Rapid & Blitz Championship | Blitz | 28 | Ver |
| 9 oct 2025 | Katz, Alexander 2398 | Chasin, Nico 2443 | 0-1 | B90 Sicilian Defense: Najdorf Variation, English Attack | 2025 Marshall Chess Club Rapid & Blitz Championship | Blitz | 39 | Ver |
| 9 oct 2025 | Katz, Alexander 2349 | Bortnyk, Mykola 2517 | 0-1 | B42 Sicilian Defense: Kan Variation, Polugaevsky Variation | 2025 Marshall Chess Club Rapid & Blitz Championship | Rapid | 50 | Ver |
| 9 oct 2025 | Chasin, Nico 2414 | Katz, Alexander 2349 | 0-1 | E20 Nimzo-Indian Defense: Kmoch Variation | 2025 Marshall Chess Club Rapid & Blitz Championship | Rapid | 53 | Ver |
