| Jun 27, 2026 | Nandhakumar | ½–½ | Tanenbaum | Round 5: Nandhakumar, Vaseegaran - Tanenbaum, Zachary | English Opening: Agincourt Defense | |
| Jun 27, 2026 | Tanenbaum | 1–0 | Marzouq | Round 4: Tanenbaum, Zachary - Marzouq, Chowdhury | Sicilian Defense: Najdorf Variation | |
| Jun 26, 2026 | Zhou | 1–0 | Tanenbaum | Round 3: Zhou, Jianchao - Tanenbaum, Zachary | English Opening: King's English Variation, Three Knights System | |
| May 25, 2026 | Tanenbaum | 1–0 | Yang | 35th Annual Chicago Open | Sicilian Defense: Najdorf Variation, English Attack | |
| May 22, 2026 | Tanenbaum | ½–½ | Bharath Subramaniyam H | Round 3: Tanenbaum, Zachary - Bharath Subramaniyam H | Philidor Defense: Lion Variation | |
| May 3, 2026 | Tanenbaum | 1–0 | Xu | Round 5: Tanenbaum, Zachary - Xu, Shawn | Sicilian Defense: Najdorf Variation, English Attack | |
| May 3, 2026 | Yu | 0–1 | Tanenbaum | Round 4: Yu, Allyson - Tanenbaum, Zachary | Italian Game: Scotch Invitation Declined | |
| May 2, 2026 | Levin | 0–1 | Tanenbaum | Round 2: Levin, Anthony - Tanenbaum, Zachary | Queen's Gambit Declined | |
| May 1, 2026 | Tanenbaum | 1–0 | Phineas Hugo Weingarten | Round 1: Tanenbaum, Zachary - Phineas Hugo Weingarten | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Apr 29, 2026 | Tanenbaum | 0–1 | Stearman | Round 3: Tanenbaum, Zachary - Stearman, Josiah | Polish Opening, with d5 | |
| Mar 15, 2026 | Tanenbaum | ½–½ | Wang | Texas Grand Circuit ed1. Dallas International Section | Caro-Kann Defense | |
| Mar 13, 2026 | Tanenbaum | 0–1 | Bilych | Texas Grand Circuit ed1. Dallas International Section | Sicilian Defense: Najdorf Variation, English Attack | |
| Mar 13, 2026 | Fus | ½–½ | Tanenbaum | Texas Grand Circuit ed1. Dallas International Section | Four Knights Game: Spanish Variation, Rubinstein Variation | |
| Jan 19, 2026 | Mirzoev | 0–1 | Tanenbaum | Round 9: Mirzoev, Azer - Tanenbaum, Zachary | Tarrasch Defense: Schara Gambit | |
| Jan 19, 2026 | Tanenbaum | 0–1 | Stremavicius | Round 8: Tanenbaum, Zachary - Stremavicius, Titas | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Jan 18, 2026 | Lu | 1–0 | Tanenbaum | Round 7: Lu, Maximillian - Tanenbaum, Zachary | English Opening: King's English Variation | |
| Jan 18, 2026 | Tanenbaum | ½–½ | Matviishen | Round 6: Tanenbaum, Zachary - Matviishen, Viktor | Sicilian Defense: Najdorf Variation, English Attack | |
| Jan 17, 2026 | Griffith | 1–0 | Tanenbaum | Round 5: Griffith, Kyron - Tanenbaum, Zachary | Four Knights Game | |
| Jan 17, 2026 | Tanenbaum | ½–½ | Narayanan | Round 4: Tanenbaum, Zachary - Narayanan, Samrug | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jan 15, 2026 | Adewumi | 1–0 | Tanenbaum | Round 2: Adewumi, Tanitoluwa - Tanenbaum, Zachary | Queen's Gambit Declined: Queen's Knight Variation | |
| Jan 14, 2026 | Tanenbaum | ½–½ | Guo | Round 1: Tanenbaum, Zachary - Guo, Ethan | Sicilian Defense: Najdorf Variation, English Attack | |
| Jan 14, 2026 | Tanenbaum | ½–½ | Ozenir | Round 3: Tanenbaum, Zachary - Ozenir, Ekin Baris | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Dec 21, 2025 | Tanenbaum | ½–½ | Ho | Round 7: Tanenbaum, Zachary - Ho, Carter | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Dec 21, 2025 | Rozman | ½–½ | Tanenbaum | Round 6: Rozman, Levy - Tanenbaum, Zachary | Nimzo-Larsen Attack: Modern Variation | |
| Dec 20, 2025 | Tanenbaum | 1–0 | Belenky | Round 5: Tanenbaum, Zachary - Belenky, Nicholas | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 20, 2025 | Maahir Patel | ½–½ | Tanenbaum | Round 4: Maahir Patel - Tanenbaum, Zachary | Bishop's Opening: Vienna Hybrid | |
| Dec 19, 2025 | Aadit Bhatia | 1–0 | Tanenbaum | Round 2: Aadit Bhatia - Tanenbaum, Zachary | Queen's Gambit Declined | |
| Dec 19, 2025 | Tanenbaum | 1–0 | Debmisra | Round 1: Tanenbaum, Zachary - Debmisra, Ariv | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Nov 30, 2025 | Rodrigue-Lemieux | 1–0 | Tanenbaum | Round 9: Rodrigue-Lemieux, Shawn - Tanenbaum, Zachary | English Opening: King's English Variation | |
| Nov 30, 2025 | Tanenbaum | 1–0 | Cardoso Cardoso | Round 8: Tanenbaum, Zachary - Cardoso Cardoso, Jose Gabriel | Sicilian Defense: Najdorf Variation, English Attack | |
| Nov 30, 2025 | Nyzhnyk | ½–½ | Tanenbaum | Round 7: Nyzhnyk, Illya - Tanenbaum, Zachary | Tarrasch Defense: Schara Gambit | |
| Nov 29, 2025 | Tanenbaum | 1–0 | Budisavljevic | Round 6: Tanenbaum, Zachary - Budisavljevic, Luka | Sicilian Defense: Taimanov Variation | |
| Nov 28, 2025 | Tanenbaum | 0–1 | Kunka | Round 4: Tanenbaum, Zachary - Kunka, Harshid | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Aug 27, 2025 | Tanenbaum | 1–0 | Yudasin | Round 8: Tanenbaum, Zachary - Yudasin, Leonid | Sicilian Defense: Richter-Rauzer Variation | |
| Aug 27, 2025 | Eynula | 0–1 | Tanenbaum | Round 9: Eynula, Roza - Tanenbaum, Zachary | Tarrasch Defense: Schara Gambit | |
| Jul 16, 2025 | Meduri | 0–1 | Tanenbaum | Round 4: Meduri, Aakaash - Tanenbaum, Zachary | Four Knights Game: Gunsberg Variation | |
| Jul 16, 2025 | Kyle B Lancman | 0–1 | Tanenbaum | Round 3: Kyle B Lancman - Tanenbaum, Zachary | Ruy Lopez: Schliemann Defense | |
| Jul 16, 2025 | Tanenbaum | 1–0 | Paul Iinuma | Round 2: Tanenbaum, Zachary - Paul Iinuma | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jul 15, 2025 | Levin | 0–1 | Tanenbaum | Round 1: Levin, Anthony - Tanenbaum, Zachary | Queen's Gambit Declined | |
| Jul 5, 2025 | Altman | * | Tanenbaum | 53rd Annual World Open Chess Tournament | ? | |
| May 26, 2025 | Vinod | ½–½ | Tanenbaum | Round 9: Vinod, Aarush - Tanenbaum, Zachary | Four Knights Game | |
| May 26, 2025 | Tanenbaum | 0–1 | Plat | Round 8: Tanenbaum, Zachary - Plat, Vojtech | Alekhine Defense: Exchange Variation | |
| May 25, 2025 | Putnam | 1–0 | Tanenbaum | Round 7: Putnam, Liam - Tanenbaum, Zachary | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| May 25, 2025 | Tanenbaum | 0–1 | Stearman | Round 6: Tanenbaum, Zachary - Stearman, Josiah | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| May 24, 2025 | Nagy | 1–0 | Tanenbaum | Round 5: Nagy, Gabor - Tanenbaum, Zachary | Queen's Gambit Declined | |
| May 24, 2025 | Tanenbaum | ½–½ | Adewumi | Round 4: Tanenbaum, Zachary - Adewumi, Tanitoluwa | Petrov's Defense: Classical Attack | |
| May 23, 2025 | Huston | 0–1 | Tanenbaum | Round 2: Huston, Gus - Tanenbaum, Zachary | Ruy Lopez: Closed, Anti-Marshall | |
| May 22, 2025 | Tanenbaum | ½–½ | George | Round 1: Tanenbaum, Zachary - George, Kevin | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 18, 2025 | Tanenbaum | 0–1 | Meshkovs | Round 3: Tanenbaum, Zachary - Meshkovs, Nikita | Sicilian Defense: O'Kelly Variation, Venice System | |
| Mar 22, 2025 | Tanenbaum | 1–0 | Nemeth | OneWeek GM-B | Sicilian Defense: Najdorf Variation, English Attack, Anti-English | |
| Mar 21, 2025 | Tanenbaum | 0–1 | Moldagali | OneWeek GM-B | Italian Game: Scotch Invitation Declined | |
| Mar 21, 2025 | Dudognon | 0–1 | Tanenbaum | OneWeek GM-B | Ruy Lopez: Exchange Variation, Keres Variation | |
| Mar 20, 2025 | Md Imran | ½–½ | Tanenbaum | OneWeek GM-B | Queen's Pawn Game: Zukertort Variation | |
| Mar 19, 2025 | Tanenbaum | ½–½ | Kraus | OneWeek GM-B | Sicilian Defense: Four Knights Variation | |
| Mar 19, 2025 | Yeganegi | ½–½ | Tanenbaum | OneWeek GM-B | Queen's Gambit Declined | |
| Mar 18, 2025 | Tanenbaum | * | Plat | OneWeek GM-B | ? | |
| Mar 18, 2025 | Pap | 1–0 | Tanenbaum | OneWeek GM-B | Italian Game: Scotch Gambit, Max Lange Attack | |
| Mar 17, 2025 | Sklokin | 0–1 | Tanenbaum | OneWeek GM-B | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Feb 17, 2025 | Tanenbaum | 1–0 | Shundi | Round 9: Tanenbaum, Zachary - Shundi, Matias | Sicilian Defense: Kalashnikov Variation | |
| Feb 17, 2025 | Novik | 1–0 | Tanenbaum | Round 8: Novik, Maxim - Tanenbaum, Zachary | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Feb 16, 2025 | Tanenbaum | ½–½ | Mou | Round 7: Tanenbaum, Zachary - Mou, Iris | Petrov's Defense: Classical Attack | |
| Feb 16, 2025 | Cherukuri | ½–½ | Tanenbaum | Round 6: Cherukuri, Nitesh - Tanenbaum, Zachary | Italian Game: Classical Variation, Giuoco Pianissimo, Albin Variation | |
| Feb 15, 2025 | Tanenbaum | 1–0 | Golubka | Round 5: Tanenbaum, Zachary - Golubka, Petro | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| Feb 15, 2025 | Lund | 0–1 | Tanenbaum | Round 4: Lund, Silas - Tanenbaum, Zachary | Queen's Gambit Declined | |
| Feb 14, 2025 | Tanenbaum | 1–0 | Dhyana Patel | Round 3: Tanenbaum, Zachary - Dhyana Patel | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Feb 14, 2025 | Pang | 1–0 | Tanenbaum | Round 2: Pang, Qi - Tanenbaum, Zachary | Catalan Opening: Open Defense, Modern Sharp Variation | |
| Feb 13, 2025 | Tanenbaum | ½–½ | Jing | Round 1: Tanenbaum, Zachary - Jing, Andrew | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Jan 20, 2025 | Tanenbaum | 1–0 | Yudasin | Round 8: Tanenbaum, Zachary - Yudasin, Leonid | Sicilian Defense: O'Kelly Variation, Venice System | |
| Jan 20, 2025 | Kretchetov | ½–½ | Tanenbaum | Round 9: Kretchetov, Alexandre - Tanenbaum, Zachary | Queen's Pawn Game: London System, with e6 | |
| Jan 19, 2025 | Tanenbaum | 0–1 | Ragnarsson | Round 6: Tanenbaum, Zachary - Ragnarsson, Dagur | Sicilian Defense: Old Sicilian | |
| Jan 19, 2025 | Domalchuk-Jonasson | 1–0 | Tanenbaum | Round 7: Domalchuk-Jonasson, Aleksandr - Tanenbaum, Zachary | English Opening: Agincourt Defense | |
| Jan 18, 2025 | Tanenbaum | ½–½ | Mou | Round 4: Tanenbaum, Zachary - Mou, Iris | Caro-Kann Defense | |
| Jan 18, 2025 | Hoffman | ½–½ | Tanenbaum | Round 5: Hoffman, Luc - Tanenbaum, Zachary | Four Knights Game | |
| Jan 17, 2025 | Tanenbaum | 1–0 | Das | Round 2: Tanenbaum, Zachary - Das, Aditeya | Sicilian Defense: Najdorf Variation, Poisoned Pawn Accepted | |
| Jan 17, 2025 | Ho | 0–1 | Tanenbaum | Round 3: Ho, Carter - Tanenbaum, Zachary | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jan 16, 2025 | Tanenbaum | 1–0 | Cherukuri | Round 1: Tanenbaum, Zachary - Cherukuri, Nitesh | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Dec 18, 2024 | Tanenbaum | 1–0 | Michael A Rohde | Round 4: Tanenbaum, Zachary - Michael A Rohde | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 18, 2024 | Tanenbaum | 0–1 | Zeltsan | Round 2: Tanenbaum, Zachary - Zeltsan, Joseph | Nimzowitsch Defense: Williams Variation | |
| Sep 2, 2024 | Bortnyk | 1–0 | Tanenbaum | Round 9: Bortnyk, Mykola - Tanenbaum, Zachary | Hungarian Opening | |
| Sep 2, 2024 | Tanenbaum | 1–0 | Lin | Round 8: Tanenbaum, Zachary - Lin, Bryan Enming | Sicilian Defense: Four Knights Variation | |
| Sep 1, 2024 | Quesada Vera | 1–0 | Tanenbaum | Round 6: Quesada Vera, Liordis - Tanenbaum, Zachary | King's Indian Attack | |
| Aug 31, 2024 | Tanenbaum | ½–½ | Mou | Round 5: Tanenbaum, Zachary - Mou, Iris | Caro-Kann Defense: Exchange Variation | |
| Aug 31, 2024 | Ho | 0–1 | Tanenbaum | Round 4: Ho, Cooper - Tanenbaum, Zachary | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 30, 2024 | Tanenbaum | ½–½ | Espinosa | Round 3: Tanenbaum, Zachary - Espinosa, Pedro | Four Knights Game: Scotch Variation Accepted | |
| Aug 30, 2024 | Ansh M Shah | 1–0 | Tanenbaum | Round 2: Ansh M Shah - Tanenbaum, Zachary | Queen's Pawn Game: Zukertort Variation | |
| Aug 29, 2024 | Tanenbaum | ½–½ | Yudasin | Round 1: Tanenbaum, Zachary - Yudasin, Leonid | Sicilian Defense: Najdorf Variation, English Attack | |
| Aug 28, 2024 | Tanenbaum | 1–0 | Pressman | Round 7: Tanenbaum, Zachary - Pressman, Leif | Italian Game: Classical Variation, Giuoco Pianissimo, with a5 | |
| Aug 10, 2024 | Tanenbaum | ½–½ | Atanasov | 11th Annual Washington International - Championship | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 10, 2024 | Chandra | 1–0 | Tanenbaum | 11th Annual Washington International - Championship | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Aug 10, 2024 | Budisavljevic | * | Tanenbaum | 11th Annual Washington International - Championship | Queen's Pawn Game: Zukertort Variation | |
| Aug 10, 2024 | Ghaem Maghami | ½–½ | Tanenbaum | 11th Annual Washington International - Championship | Tarrasch Defense | |
| Aug 10, 2024 | Zeltsan | 0–1 | Tanenbaum | 11th Annual Washington International - Championship | Queen's Pawn Game: Zukertort Variation | |
| Jul 21, 2024 | Tanenbaum | 0–1 | Mirzoev | Round 9: Tanenbaum, Zachary - Mirzoev, Azer | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Jul 21, 2024 | Pressman | ½–½ | Tanenbaum | Round 8: Pressman, Leif - Tanenbaum, Zachary | Ruy Lopez: Schliemann Defense, Tartakower Variation | |
| Jul 20, 2024 | Tanenbaum | 0–1 | Lenderman | Round 7: Tanenbaum, Zachary - Lenderman, Aleksandr | French Defense: Burn Variation | |
| Jul 20, 2024 | Barbosa | 0–1 | Tanenbaum | Round 6: Barbosa, Oliver - Tanenbaum, Zachary | Queen's Pawn Game: Zukertort Variation | |
| Jul 19, 2024 | Plat | 1–0 | Tanenbaum | Round 4: Plat, Vojtech - Tanenbaum, Zachary | Semi-Slav Defense: Bogoljubow Variation | |
| Jul 18, 2024 | Tanenbaum | 0–1 | Nagy | Round 2: Tanenbaum, Zachary - Nagy, Gabor | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 31, 2024 | Atwell | 0–1 | Tanenbaum | Round 9: Atwell, Rose - Tanenbaum, Zachary | Ruy Lopez: Schliemann Defense | |
| Mar 31, 2024 | Tanenbaum | 1–0 | Lekic | Round 8: Tanenbaum, Zachary - Lekic, Dusan | Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation | |