| Sep 6, 2025 | Greatorex | 1–0 | Gardiner | Hull 4NCL Congress 2025 - U2000 section. | Caro-Kann Defense: Two Knights Attack | |
| Sep 6, 2025 | Gardiner | ½–½ | Levy | Hull 4NCL Congress 2025 - U2000 section. | Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange | |
| Apr 27, 2025 | Gardiner | ½–½ | Byron | Round 6: Gardiner, Eric D - Byron, Alan M | Caro-Kann Defense: Exchange Variation | |
| Apr 27, 2025 | Alldritt | 1–0 | Gardiner | Round 5: Alldritt, Nigel R E - Gardiner, Eric D | Queen's Gambit Declined | |
| Apr 25, 2025 | Gardiner | ½–½ | Hill | Round 3: Gardiner, Eric D - Hill, Andy | Trompowsky Attack | |
| Apr 25, 2025 | Richards | ½–½ | Gardiner | Round 2: Richards, Simon - Gardiner, Eric D | Rapport-Jobava System | |
| Apr 24, 2025 | Gardiner | 0–1 | Ciuravin | Round 1: Gardiner, Eric D - Ciuravin, Andrei | Owen Defense | |
| May 28, 2024 | Paterson | 1–0 | Gardiner | Round 7: Paterson, Andrew I - Gardiner, Eric D | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| May 27, 2024 | Gardiner | ½–½ | Burrows | Round 6: Gardiner, Eric D - Burrows, Martin P | Sicilian Defense: Delayed Alapin Variation | |
| May 27, 2024 | Hymer | 0–1 | Gardiner | Round 5: Hymer, Barry - Gardiner, Eric D | Rapport-Jobava System | |
| May 25, 2024 | Gardiner | ½–½ | Henderson | Round 3: Gardiner, Eric D - Henderson, David | Scotch Game: Classical Variation | |
| May 25, 2024 | Drugan | ½–½ | Gardiner | Round 2: Drugan, Mark A - Gardiner, Eric D | Caro-Kann Defense: Maróczy Variation | |
| May 24, 2024 | Gardiner | 0–1 | Willmoth | Round 1: Gardiner, Eric D - Willmoth, Robert F | Pirc Defense: Austrian Attack, Weiss Variation | |
| Feb 23, 2024 | Asgarova | 1–0 | Gardiner | Round 8: Asgarova, Turan - Gardiner, Eric D | Caro-Kann Defense: Exchange Variation | |
| Feb 23, 2024 | Kovalskyi | 1–0 | Gardiner | Round 7: Kovalskyi, Roman - Gardiner, Eric D | Caro-Kann Defense: Exchange Variation | |
| Sep 8, 2024 | Gardiner | ½–½ | Stephenson | Round 4: Gardiner, Eric D - Stephenson, David W | French Defense: Schlechter Variation | |
| Sep 8, 2024 | Fearnhead | 1–0 | Gardiner | Round 5: Fearnhead, Benjamin - Gardiner, Eric D | Van Geet Opening | |
| Sep 7, 2024 | Gardiner | 1–0 | Hu | Round 2: Gardiner, Eric D - Hu, Junyan | Sicilian Defense: Delayed Alapin Variation | |
| Sep 7, 2024 | Cukovs | ½–½ | Gardiner | Round 3: Cukovs, Oleg - Gardiner, Eric D | Caro-Kann Defense: Forgacs Variation | |
| Jul 30, 2023 | Eric D Gardiner | 0–1 | Robert Starley | British Chess Championships 2023: Championship | Sicilian Defense: Alapin Variation | |
| Jul 28, 2023 | Payne | 1–0 | Gardiner | British Chess Championships 2023: Championship | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jul 26, 2023 | Gardiner | 0–1 | Shaw | British Chess Championships 2023: Championship | Czech Defense | |
| Jul 25, 2023 | Beaumont | 1–0 | Gardiner | British Chess Championships 2023: Championship | King's Indian Attack | |
| Jul 24, 2023 | Gardiner | ½–½ | Ismail | British Chess Championships 2023: Championship | Caro-Kann Defense: Exchange Variation | |
| Jul 22, 2023 | Yao | 1–0 | Gardiner | British Chess Championships 2023: Championship | Philidor Defense: Lion Variation | |
| Apr 10, 2023 | Gardiner | 0–1 | Ali | 3rd 4NCL Easter Congress: Open | Trompowsky Attack | |
| Apr 10, 2023 | Headlong | ½–½ | Gardiner | 3rd 4NCL Easter Congress: Open | Caro-Kann Defense: Two Knights Attack | |
| Apr 9, 2023 | Gardiner | ½–½ | Moss | 3rd 4NCL Easter Congress: Open | Scotch Game: Schmidt Variation | |
| Apr 9, 2023 | Hertog | ½–½ | Gardiner | 3rd 4NCL Easter Congress: Open | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Apr 8, 2023 | Gardiner | 0–1 | Burrows | 3rd 4NCL Easter Congress: Open | Sicilian Defense: Delayed Alapin Variation | |
| Apr 8, 2023 | Boggarapu | ½–½ | Gardiner | 3rd 4NCL Easter Congress: Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 7, 2023 | Gardiner | 0–1 | Dignam | 3rd 4NCL Easter Congress: Open | French Defense: Exchange Variation | |
| Feb 19, 2023 | Chantrell | 0–1 | Gardiner | Cambridge International Open | French Defense: Advance Variation | |
| Feb 18, 2023 | Gardiner | 1–0 | Chan | Cambridge International Open | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Feb 18, 2023 | Gardiner | 0–1 | Liu | Cambridge International Open | Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line | |
| Feb 17, 2023 | Gardiner | ½–½ | Catabay | Cambridge International Open | Trompowsky Attack | |
| Feb 17, 2023 | Golsta | 1–0 | Gardiner | Cambridge International Open | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 16, 2023 | Bonn | ½–½ | Gardiner | Cambridge International Open | Catalan Opening: Open Defense | |
| Feb 16, 2023 | Mihalik | 1–0 | Gardiner | Cambridge International Open | French Defense: Tarrasch Variation, Morozevich Variation | |
| Feb 15, 2023 | Gardiner | 1–0 | Li | Cambridge International Open | Sicilian Defense: Alapin Variation | |
| Jan 22, 2023 | Rich | 1–0 | Gardiner | 29th 4NCL Congress Open | Anderssen's Opening | |
| Jan 21, 2023 | Gardiner | ½–½ | Sheppard | 29th 4NCL Congress Open | French Defense: Advance Variation | |
| Jan 21, 2023 | Arkell | 1–0 | Gardiner | 29th 4NCL Congress Open | Queen's Gambit Accepted: Central Variation, Modern Defense | |
| Oct 16, 2022 | Gardiner | 0–1 | Cooper | Hull 4NCL International Open | Sicilian Defense: Alapin Variation | |
| Oct 16, 2022 | James | 0–1 | Gardiner | Hull 4NCL International Open | Philidor Defense: Lion Variation, Delayed Bishop Sacrifice | |
| Oct 15, 2022 | Gardiner | * | Churavin | Hull 4NCL International Open | Dutch Defense: Hopton Attack | |
| Oct 15, 2022 | Sheppard | * | Gardiner | Hull 4NCL International Open | ? | |
| Aug 21, 2022 | Gardiner | ½–½ | Dignam | Chessable British Chess Championships: Major Open | Sicilian Defense: Alapin Variation | |
| Aug 20, 2022 | Gardiner | 1–0 | Johnson | Chessable British Chess Championships: Major Open | Scotch Game: Mieses Variation | |
| Aug 19, 2022 | Khoury | 0–1 | Gardiner | Chessable British Chess Championships: Major Open | French Defense: Classical Variation, Steinitz Variation | |
| Aug 18, 2022 | Gardiner | ½–½ | Collins | Chessable British Chess Championships: Major Open | Scotch Game: Classical Variation, Intermezzo Variation | |
| Aug 17, 2022 | Davis | ½–½ | Gardiner | Chessable British Chess Championships: Major Open | Philidor Defense: Lion Variation | |
| Aug 16, 2022 | Gardiner | ½–½ | Cox | Chessable British Chess Championships: Major Open | French Defense: Advance Variation, Euwe Variation | |
| Aug 15, 2022 | Volovich | ½–½ | Gardiner | Chessable British Chess Championships: Major Open | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 14, 2022 | Gardiner | ½–½ | Hickman | Chessable British Chess Championships: Major Open | Pirc Defense | |
| Aug 13, 2022 | Fleri | 0–1 | Gardiner | Chessable British Chess Championships: Major Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 18, 2022 | Gardiner | 0–1 | Cox | 2nd Easter 4NCL Congress | French Defense: Exchange Variation | |
| Apr 18, 2022 | Sandhu | ½–½ | Gardiner | 2nd Easter 4NCL Congress | French Defense: Schlechter Variation | |
| Apr 17, 2022 | Gardiner | 0–1 | Gibson | 2nd Easter 4NCL Congress | Trompowsky Attack: Classical Defense, Big Center Variation | |
| Apr 17, 2022 | Gibbon | 0–1 | Gardiner | 2nd Easter 4NCL Congress | Rapport-Jobava System | |
| Apr 16, 2022 | Gardiner | ½–½ | Chen | 2nd Easter 4NCL Congress | Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line | |
| Apr 16, 2022 | Liu | 1–0 | Gardiner | 2nd Easter 4NCL Congress | French Defense: MacCutcheon Variation, Janowski Variation | |
| Apr 15, 2022 | Gardiner | 0–1 | Arkell | 2nd Easter 4NCL Congress | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Jan 23, 2022 | Gardiner | 0–1 | Burnett | 27th 4NCL OTB Congress | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jan 23, 2022 | Smith | 1–0 | Gardiner | 27th 4NCL OTB Congress | Pirc Defense | |
| Jan 22, 2022 | Gardiner | 1–0 | Sheppard | 27th 4NCL OTB Congress | Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange | |
| Jan 22, 2022 | Bradbury | ½–½ | Gardiner | 27th 4NCL OTB Congress | Queen's Gambit Accepted: Alekhine Defense | |
| — | Gardiner | 0–1 | Kolbus | British Chess Championships 2023: Championship | Alekhine Defense: Exchange Variation, Voronezh Variation | |
| — | Gardiner | 1–0 | Wilson | Round 2: Gardiner, Eric D - Wilson, Matthew R | Petrov's Defense: Classical Attack, Marshall Variation | |
| — | Gardiner | 1–0 | Richard Kelly | Round 4: Gardiner, Eric D - Richard Kelly | Trompowsky Attack | |
| — | Gardiner | ½–½ | Okike | Round 6: Gardiner, Eric D - Okike, David | Trompowsky Attack: Classical Defense, Big Center Variation | |
| — | Merriman | 1–0 | Gardiner | Round 1: Merriman, John - Gardiner, Eric D | Lion Defense: Lion's Jaw | |
| — | Farrell | ½–½ | Gardiner | Round 3: Farrell, Neil - Gardiner, Eric D | Queen's Gambit Declined | |
| — | Kee | 0–1 | Gardiner | Round 5: Kee, Steve - Gardiner, Eric D | French Defense: Steiner Variation | |
| — | Jennings | 1–0 | Gardiner | Round 7: Jennings, Richard - Gardiner, Eric D | Queen's Pawn Game: Accelerated London System | |