| Feb 22, 2026 | Gallagher | ½–½ | Howell | Round 9: Gallagher, Daniel GH - Howell, Oliver W | French Defense | |
| Feb 22, 2026 | Howell | ½–½ | Bottazzi | Round 8: Howell, Oliver W - Bottazzi, Ulysse | Zukertort Opening: Kingside Fianchetto | |
| Feb 22, 2026 | Hng | 1–0 | Howell | Round 6: Hng, Mei-Xian Eunice - Howell, Oliver W | French Defense: Winawer Variation, Advance Variation | |
| Feb 21, 2026 | Howell | ½–½ | Rathbone-Jones | Round 9: Howell, Oliver W - Rathbone-Jones, Ifan | Queen's Pawn Game | |
| Feb 21, 2026 | Howell | 1–0 | Deepak | Round 8: Howell, Oliver W - Deepak, Aakarsh | Queen's Pawn Game: Torre Attack | |
| Feb 21, 2026 | Pang | 1–0 | Howell | Round 7: Pang, Khai Jie Ryan - Howell, Oliver W | French Defense: Schlechter Variation | |
| Feb 21, 2026 | Howell | 0–1 | Saidmurodov | Round 6: Howell, Oliver W - Saidmurodov, Shahjahon | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Feb 21, 2026 | Thapelo Mothathego | 0–1 | Howell | Round 5: Thapelo Mothathego - Howell, Oliver W | English Opening: Symmetrical Variation, Duchamp Variation | |
| Feb 21, 2026 | Bansal | 0–1 | Howell | Round 4: Bansal, Saahil - Howell, Oliver W | Slav Defense: Alekhine Variation | |
| Feb 21, 2026 | Howell | 0–1 | Imam-Sadeque | Round 3: Howell, Oliver W - Imam-Sadeque, Ali | Queen's Pawn Game: Zukertort Variation | |
| Feb 21, 2026 | Choong | 1–0 | Howell | Round 2: Choong, Han-sen - Howell, Oliver W | Slav Defense | |
| Feb 21, 2026 | Howell | 0–1 | Kuhendiran | Round 1: Howell, Oliver W - Kuhendiran, Tharshan | Queen's Pawn Game: Torre Attack | |
| Feb 21, 2026 | Fewell | ½–½ | Howell | Round 4: Fewell, Ewan - Howell, Oliver W | French Defense: Tarrasch Variation, Morozevich Variation | |
| Feb 21, 2026 | Howell | 0–1 | Stoyanov | Round 5: Howell, Oliver W - Stoyanov, Viktor | Zukertort Opening: Kingside Fianchetto | |
| Feb 21, 2026 | Howell | 1–0 | Badacsonyi | Round 3: Howell, Oliver W - Badacsonyi, Frankie | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Feb 21, 2026 | Makkar | 1–0 | Howell | Round 2: Makkar, Rajat - Howell, Oliver W | Slav Defense | |
| Feb 21, 2026 | Howell | 0–1 | Cave | Round 1: Howell, Oliver W - Cave, Iwan | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Feb 19, 2026 | Howell | 0–1 | Minko | Round 7: Howell, Oliver W - Minko, Dmitry | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Feb 23, 2025 | Turner | 1–0 | Howell | British Universities Chess Association Championship 2025 | Slav Defense: Czech Variation, Classical System, Main Line | |
| Feb 23, 2025 | Schweizer | 1–0 | Howell | British Universities Chess Association Championship 2025 | French Defense: Schlechter Variation | |
| Feb 22, 2025 | Howell | ½–½ | Goh | British Universities Chess Association Championship 2025 | Queen's Pawn Game: Torre Attack | |
| Feb 22, 2025 | Howell | 0–1 | Bottazzi | British Universities Chess Association Championship 2025 | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Feb 22, 2025 | Rathbone-Jones | ½–½ | Howell | British Universities Chess Association Championship 2025 | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Feb 22, 2025 | Balaji | 1–0 | Howell | British Universities Chess Association Championship 2025 | Slav Defense: Exchange Variation | |
| Feb 22, 2025 | Honey | 1–0 | Howell | British Universities Chess Association Championship 2025 | French Defense: Winawer Variation, Delayed Exchange Variation | |
| Jul 31, 2024 | Howell | ½–½ | Honey | Round 5: Howell, Oliver W - Honey, Luke Anthony | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Jul 29, 2024 | Angst | ½–½ | Howell | Round 3: Angst, Oliver - Howell, Oliver W | French Defense: Exchange Variation | |
| Jul 28, 2024 | Howell | 1–0 | Chantrell | Round 2: Howell, Oliver W - Chantrell, Paul | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Jul 27, 2024 | Siddhartha Shankar Srivastava | ½–½ | Howell | Round 1: Siddhartha Shankar Srivastava - Howell, Oliver W | French Defense: Advance Variation, Euwe Variation | |
| Feb 25, 2024 | Stoyanov | 1–0 | Howell | Round 9: Stoyanov, Viktor - Howell, Oliver W | Slav Defense: Modern Line | |
| Feb 25, 2024 | Howell | 0–1 | Jain | Round 8: Howell, Oliver W - Jain, Gautam | Zukertort Opening: Pirc Invitation | |
| Feb 25, 2024 | Iskauskas | 0–1 | Howell | Round 7: Iskauskas, Alexander - Howell, Oliver W | French Defense: Horwitz Attack, Papa-Ticulat Gambit | |
| Feb 25, 2024 | Howell | ½–½ | Hedger | Round 6: Howell, Oliver W - Hedger, Alec | Zukertort Opening: Queen's Gambit Invitation | |
| Feb 24, 2024 | Benzaira | 0–1 | Howell | Round 5: Benzaira, Sammy - Howell, Oliver W | French Defense: Winawer Variation, Poisoned Pawn Variation | |
| Feb 24, 2024 | Howell | 0–1 | Clarke | Round 4: Howell, Oliver W - Clarke, James | Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation | |
| Feb 24, 2024 | Howell | 1–0 | Petr | Round 3: Howell, Oliver W - Petr, Jan | King's Indian Defense: Fianchetto Variation, Classical Fianchetto | |
| Feb 24, 2024 | Gallagher | 1–0 | Howell | Round 2: Gallagher, Daniel GH - Howell, Oliver W | French Defense: Horwitz Attack, Papa-Ticulat Gambit | |
| Feb 24, 2024 | Howell | 0–1 | Guha | Round 1: Howell, Oliver W - Guha, Chirag | Queen's Pawn Game: Torre Attack | |
| Jan 5, 2024 | Howell | ½–½ | White | Caplin Hastings Masters 2023 | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Jan 4, 2024 | Weersing | 0–1 | Howell | Caplin Hastings Masters 2023 | Slav Defense: Exchange Variation, Symmetrical Line | |
| Jan 3, 2024 | Howell | 1–0 | Prudent | Caplin Hastings Masters 2023 | Zukertort Opening: Dutch Variation | |
| Jan 2, 2024 | Kovalskyi | 1–0 | Howell | Caplin Hastings Masters 2023 | French Defense: Advance Variation, Euwe Variation | |
| Jan 1, 2024 | Howell | ½–½ | Walker | Caplin Hastings Masters 2023 | Neo-Grünfeld Defense: Classical Variation, Modern Defense | |
| Aug 4, 2024 | Howell | 0–1 | Kueh | Round 9: Howell, Oliver W - Kueh, Audrey | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Aug 2, 2024 | Shaw | 0–1 | Howell | Round 7: Shaw, Peter - Howell, Oliver W | Slav Defense: Modern Line | |
| Aug 1, 2024 | Howell | 1–0 | Cancedda-Dupuis | Round 6: Howell, Oliver W - Cancedda-Dupuis, Livio | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Dec 31, 2023 | Pert | 1–0 | Howell | Caplin Hastings Masters 2023 | Rapport-Jobava System | |
| Dec 30, 2023 | Bai | 1–0 | Howell | Caplin Hastings Masters 2023 | French Defense: Winawer Variation, Poisoned Pawn Variation, Main Line | |
| Dec 29, 2023 | Howell | ½–½ | Sarkar | Caplin Hastings Masters 2023 | Queen's Pawn Game: Torre Attack | |
| Jul 22, 2023 | Farrand | 1–0 | Howell | British Chess Championships 2023: Major Open | French Defense: Winawer Variation, Advance Variation | |
| Jan 4, 2023 | Shepley | 1–0 | Howell | Caplin Hastings Masters 2022 | French Defense: Advance Variation, Euwe Variation | |
| Jan 2, 2023 | Hutchinson | 1–0 | Howell | Caplin Hastings Masters 2022 | Queen's Pawn Game: Accelerated London System | |
| Jan 1, 2023 | Howell | ½–½ | Nissinen | Caplin Hastings Masters 2022 | Zukertort Opening | |
| Dec 31, 2022 | Flynn | ½–½ | Howell | Caplin Hastings Masters 2022 | French Defense: Schlechter Variation | |
| Dec 30, 2022 | Howell | 0–1 | Royset | Caplin Hastings Masters 2022 | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Dec 29, 2022 | Sugden | ½–½ | Howell | Caplin Hastings Masters 2022 | French Defense: Advance Variation, Euwe Variation | |
| Dec 28, 2022 | Howell | * | Schimnatkowski | Caplin Hastings Masters 2022 | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| — | Howell | 0–1 | Shiatis | British Universities Chess Association Championship 2025 | King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System | |
| — | Howell | 0–1 | O`Gorman | British Universities Chess Association Championship 2025 | King's Indian Defense: Fianchetto Variation, Classical Fianchetto | |
