| Jun 17, 2026 | Alexander Katz | ½–½ | Luc William Crim Hoffman | Round 3: Alexander Katz - Luc William Crim Hoffman | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| Jun 17, 2026 | Shvarts | 0–1 | Alexander Katz | Round 2: Shvarts, Tim - Alexander Katz | Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation | |
| Jun 16, 2026 | Alexander Katz | 1–0 | Arthur | Round 1: Alexander Katz - Arthur, Brian | Sicilian Defense: Closed, Anti-Sveshnikov Variation, with Nf6 | |
| Jun 15, 2026 | Adewumi | 0–1 | Alexander Katz | Round 4: Adewumi, Tanitoluwa - Alexander Katz | Pirc Defense: Classical Variation | |
| May 27, 2026 | Jay Richard Bonin | 0–1 | Alexander Katz | Round 3: Jay Richard Bonin - Alexander Katz | Indian Defense | |
| May 27, 2026 | Alexander Katz | 1–0 | Paruchuri | Round 2: Alexander Katz - Paruchuri, Naveen | Petrov's Defense: Nimzowitsch Attack | |
| May 26, 2026 | Gartenlaub | ½–½ | Alexander Katz | Round 1: Gartenlaub, Corin - Alexander Katz | Pirc Defense | |
| May 25, 2026 | Alexander Katz | ½–½ | Adewumi | Round 4: Alexander Katz - Adewumi, Tanitoluwa | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 30, 2025 | Koustav Chatterjee | ½–½ | Alexander Katz | Round 9: Koustav Chatterjee - Alexander Katz | Tarrasch Defense: Classical Variation | |
| Dec 30, 2025 | Alexander Katz | 1–0 | Girel | Round 8: Alexander Katz - Girel, Joseph | Nimzowitsch Defense: Williams Variation | |
| Dec 18, 2024 | Alexander Katz | 1–0 | Grant Rheingold | Round 4: Alexander Katz - Grant Rheingold | English Opening: King's English Variation, Three Knights System | |
| Dec 18, 2024 | Bonin | ½–½ | Alexander Katz | Round 3: Bonin, Jay - Alexander Katz | Queen's Pawn Game | |
| Dec 17, 2024 | Alexander Katz | 0–1 | Tang | Round 2: Alexander Katz - Tang, Andrew | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 10, 2023 | Eugene Yoo | ½–½ | Alexander Katz | Round 5: Eugene Yoo - Alexander Katz | Indian Defense: Knights Variation | |
| Dec 9, 2023 | Alexander Katz | 1–0 | Kiren Vivek Nasta | Round 4: Alexander Katz - Kiren Vivek Nasta | Hungarian Opening | |
| Dec 9, 2023 | Megan Althea Paragua | 0–1 | Alexander Katz | Round 3: Megan Althea Paragua - Alexander Katz | Queen's Pawn Game: Colle System, Anti-Colle | |
| Dec 9, 2023 | Alexander Katz | ½–½ | Kyle Qiyu Dong | Round 2: Alexander Katz - Kyle Qiyu Dong | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Nov 11, 2023 | Titas Stremavicius | 1–0 | Alexander Katz | Round 8: Titas Stremavicius - Alexander Katz | Catalan Opening: Open Defense, Classical Line | |
| Nov 11, 2023 | Alexander Katz | ½–½ | Alexander Kaliksteyn | Round 9: Alexander Katz - Alexander Kaliksteyn | Sicilian Defense: Najdorf Variation | |
| Nov 11, 2023 | Alexander Katz | ½–½ | Luka Budisavljevic | Round 7: Alexander Katz - Luka Budisavljevic | French Defense: Exchange Variation | |
| Nov 11, 2023 | Sam Schmakel | ½–½ | Alexander Katz | Round 6: Sam Schmakel - Alexander Katz | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Nov 10, 2023 | Josiah Stearman | 1–0 | Alexander Katz | Round 5: Josiah Stearman - Alexander Katz | Ruy Lopez: Morphy Defense | |
| Nov 10, 2023 | Alexander Katz | ½–½ | Brewington Hardaway | Round 4: Alexander Katz - Brewington Hardaway | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Nov 9, 2023 | Anthony Atanasov | ½–½ | Alexander Katz | Round 3: Anthony Atanasov - Alexander Katz | Pirc Defense: Austrian Attack, Weiss Variation | |
| Nov 9, 2023 | Alexander Katz | 0–1 | Djurabek Khamrakulov | Round 2: Alexander Katz - Djurabek Khamrakulov | Caro-Kann Defense: Advance Variation | |
| Nov 8, 2023 | Alexander Katz | 1–0 | Nico Chasin | Round 1: Alexander Katz - Nico Chasin | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jun 18, 2023 | Paul Limuna | 1–0 | Alexander Katz | Las vegas Walter Brown Blitz 2023 | ? | |
| Jun 18, 2023 | Oleiny Linares | 1–0 | Alexander Katz | Round 5: Oleiny Linares - Alexander Katz | Réti Opening: Réti Accepted | |
| Jun 18, 2023 | Hans Moke Niemann | 0–1 | Alexander Katz | Round 3: Hans Moke Niemann - Alexander Katz | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Jun 18, 2023 | Barrett Winchell | 0–1 | Alexander Katz | Round 2: Barrett Winchell - Alexander Katz | Caro-Kann Defense: Advance Variation | |
| Jun 18, 2023 | Alexander Katz | 1–0 | Brad Merrill | Round 1: Alexander Katz - Brad Merrill | King's Pawn Game | |
| Jun 17, 2023 | Alexander Katz | 1–0 | Isaac Wang | Las Vegas National Open 2023 | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 17, 2023 | Ezra Chambers | 1–0 | Alexander Katz | Las Vegas National Open 2023 | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jun 17, 2023 | Alexander Katz | 1–0 | Megan Lee | Las Vegas National Open 2023 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jun 16, 2023 | Eric Liu | 1–0 | Alexander Katz | Las Vegas National Open 2023 | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Jun 16, 2023 | Alexander Katz | 1–0 | Jayden Wu | Las Vegas National Open 2023 | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 15, 2023 | Patrick Liu | ½–½ | Alexander Katz | Las Vegas National Open 2023 | Catalan Opening | |
| Jun 15, 2023 | Alexander Katz | 1–0 | Sreekar Gangavarapu | Round 1: Alexander Katz - Sreekar Gangavarapu | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 10, 2023 | Alexander Katz | 0–1 | Anthony Angeles | Round 3: Alexander Katz - Anthony Angeles | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 9, 2023 | Roman Gavrilin | 1–0 | Alexander Katz | Round 2: Roman Gavrilin - Alexander Katz | Ruy Lopez: Morphy Defense | |
| Jun 9, 2023 | Alexander Katz | ½–½ | Henry Wang | Round 1: Alexander Katz - Henry Wang | Pirc Defense | |
| Mar 21, 2023 | Alexander Katz | ½–½ | Cristhian Cruz | Round 9: Alexander Katz - Cristhian Cruz | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Mar 21, 2023 | Robert Akopian | 0–1 | Alexander Katz | Round 8: Robert Akopian - Alexander Katz | Ruy Lopez: Morphy Defense | |
| Mar 21, 2023 | Alexander Katz | 1–0 | Luis Carlos Torres Rosas | Round 7: Alexander Katz - Luis Carlos Torres Rosas | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Mar 20, 2023 | Jacob Chiang | ½–½ | Alexander Katz | Round 6: Jacob Chiang - Alexander Katz | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Mar 19, 2023 | Alexander Katz | 0–1 | Gunnar Andersen | Round 5: Alexander Katz - Gunnar Andersen | Sicilian Defense: Kalashnikov Variation | |
| Mar 19, 2023 | Varun Krishnan | ½–½ | Alexander Katz | Round 4: Varun Krishnan - Alexander Katz | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Mar 19, 2023 | Alexander Katz | 1–0 | Aaron Jacobson | Round 3: Alexander Katz - Aaron Jacobson | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Mar 18, 2023 | Semen Khanin | 1–0 | Alexander Katz | Round 2: Semen Khanin - Alexander Katz | Nimzo-Indian Defense: St. Petersburg Variation | |
| Mar 18, 2023 | Alexander Katz | 1–0 | Patrick Liu | Round 1: Alexander Katz - Patrick Liu | Sicilian Defense: Hyperaccelerated Dragon | |
| Dec 12, 2022 | Harshid Kunka | ½–½ | Alexander Katz | Round 9: Harshid Kunka - Alexander Katz | Ruy Lopez: Morphy Defense | |
| Dec 11, 2022 | Alexander Katz | 1–0 | Samrug Narayanan | Round 8: Alexander Katz - Samrug Narayanan | Queen's Gambit Declined: Charousek Variation | |
| Dec 11, 2022 | Titas Stremavicius | ½–½ | Alexander Katz | Round 7: Titas Stremavicius - Alexander Katz | Slav Defense: Exchange Variation | |
| Dec 10, 2022 | Alexander Katz | ½–½ | Max Gedajlovic | Round 6: Alexander Katz - Max Gedajlovic | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| Dec 10, 2022 | Alexander Katz | 1–0 | Mark Heimann | Round 5: Alexander Katz - Mark Heimann | Sicilian Defense: Najdorf Variation, English Attack | |
| Dec 10, 2022 | Alexander Katz | 1–0 | Mark Heimann | Round 5: Alexander Katz - Mark Heimann | Sicilian Defense: Najdorf Variation, English Attack | |
| Dec 10, 2022 | Emilio Cordova | ½–½ | Alexander Katz | Round 4: Harshid Kunka - Emilio Cordova | King's Indian Attack: Spassky Variation | |
| Dec 10, 2022 | Alexander Katz | * | Samrug Narayanan | Round 4: Alexander Katz - Mark Heimann | ? | |
| Dec 9, 2022 | Alexander Katz | * | Mark Heimann | Round 4: Alexander Katz - Mark Heimann | ? | |
| Dec 9, 2022 | Aleksandr Ostrovskiy | 0–1 | Alexander Katz | Round 3: Aleksandr Ostrovskiy - Alexander Katz | Italian Game: Giuoco Piano | |
| Dec 8, 2022 | Alexander Katz | 1–0 | Josiah Stearman | Round 2: Alexander Katz - Josiah Stearman | Sicilian Defense: Closed, Traditional | |
| Dec 8, 2022 | Alexander Katz | * | Josiah Stearman | Round 1: Emilio Cordova - Max Gedajlovic | Sicilian Defense: Closed, Traditional | |
| Dec 8, 2022 | Alexander Katz | ½–½ | Vladimir Belous | Round 1: Alexander Katz - Vladimir Belous | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 12, 2022 | Alexander Katz | ½–½ | Teddie Wen | Round 9: Alexander Katz - Teddie Wen | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Jun 12, 2022 | Alexander Katz | 1–0 | Bryan Xie | Round 8: Alexander Katz - Bryan Xie | Hungarian Opening | |
| Jun 11, 2022 | Mark Heimann | 1–0 | Alexander Katz | Round 7: Mark Heimann - Alexander Katz | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| Jun 11, 2022 | Alexander Katz | 1–0 | Joshua Avila | Round 6: Alexander Katz - Joshua Avila | Zukertort Opening: Sicilian Invitation | |
| Jun 11, 2022 | Christopher Shen | ½–½ | Alexander Katz | Round 5: Christopher Shen - Alexander Katz | Slav Defense: Breyer Variation | |
| Jun 10, 2022 | Alexander Katz | ½–½ | Nico Chasin | Round 4: Alexander Katz - Nico Chasin | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jun 10, 2022 | Joseph Levine | ½–½ | Alexander Katz | Round 3: Joseph Levine - Alexander Katz | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 9, 2022 | Alexander Katz | 1–0 | Qiyu Zhou | Round 2: Alexander Katz - Qiyu Zhou | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Jun 9, 2022 | Paul Linuma | 0–1 | Alexander Katz | Round 1: Paul Linuma - Alexander Katz | Rapport-Jobava System | |
| Jul 5, 2021 | Alexander Katz | 1–0 | Danila Poliannikov | 49th Annual World Open | Hungarian Opening: Indian Defense | |
| Jul 5, 2021 | Zaven Andriasian | 1–0 | Alexander Katz | 49th Annual World Open | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 4, 2021 | Alexander Katz | * | Tejas Rama | 49th Annual World Open | ? | |
| Jul 4, 2021 | John Ahlborg | 0–1 | Alexander Katz | 49th Annual World Open | Catalan Opening: Open Defense | |
| Jul 3, 2021 | Alexander Katz | ½–½ | Isaac Chiu | 49th Annual World Open | Scotch Game: Mieses Variation | |
| Jul 2, 2021 | Alexander Katz | ½–½ | Gunnar Andersen | 49th Annual World Open | ? | |
| Jun 21, 2021 | Yoo | ½–½ | Alexander Katz | Round 3.1: Yoo, Christopher - Alexander Katz | Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense | |
| Jun 21, 2021 | Aram Hakobyan | ½–½ | Alexander Katz | Round 2.1: Aram Hakobyan - Alexander Katz | Sicilian Defense: O'Kelly Variation, Venice System | |
| Jun 20, 2021 | Alexander Katz | 0–1 | Hans Niemann | Round 8: Alexander Katz - Hans Niemann | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 19, 2021 | Timur Gareyev | 0–1 | Alexander Katz | Round 7: Timur Gareyev - Alexander Katz | Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation | |
| Jun 19, 2021 | Illya Nyzhnyk | 1–0 | Alexander Katz | Round 5: Illya Nyzhnyk - Alexander Katz | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jun 18, 2021 | Akshat Chandra | 1–0 | Alexander Katz | Round 3: Akshat Chandra - Alexander Katz | Nimzo-Indian Defense: St. Petersburg Variation, Fischer Variation | |