| Jun 30, 2026 | Klundt | 1–0 | Jackson | Round 5: Klundt, Klaus - Jackson, Oliver A | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jun 29, 2026 | Jackson | 1–0 | Rahner | Round 4: Jackson, Oliver A - Rahner, Fritz | French Defense: Steinitz Variation | |
| Jun 28, 2026 | Heck | 1–0 | Jackson | Round 3: Heck, Norbert - Jackson, Oliver A | Zukertort Opening: Pirc Invitation | |
| Jun 27, 2026 | Schnepel | 0–1 | Jackson | Round 2: Schnepel, Thomas - Jackson, Oliver A | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Jun 26, 2026 | Jackson | 1–0 | Ebner | Round 1: Jackson, Oliver A - Ebner, Hermann | Caro-Kann Defense: Tartakower Variation | |
| Feb 5, 2026 | Longson | 1–0 | Jackson | Round 6: Longson, Sarah N - Jackson, Oliver A | Pirc Defense | |
| Feb 5, 2026 | Jackson | 0–1 | Han | Round 5: Jackson, Oliver A - Han, Qixuan | Sicilian Defense: Closed | |
| Feb 4, 2026 | Sullivan | 0–1 | Jackson | Round 4: Sullivan, Daniel - Jackson, Oliver A | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Feb 4, 2026 | Jackson | 1–0 | Thay | Round 3: Jackson, Oliver A - Thay, Remy | Caro-Kann Defense: Tartakower Variation | |
| Feb 3, 2026 | Newton | 1–0 | Jackson | Round 2: Newton, Robert A - Jackson, Oliver A | Indian Defense: Spielmann-Indian | |
| Feb 3, 2026 | Jackson | ½–½ | Mize | Round 1: Jackson, Oliver A - Mize, Dylan | Caro-Kann Defense | |
| Jun 29, 2025 | Jackson | 0–1 | Wareing | Round 4: Jackson, Oliver A - Wareing, John P | Sicilian Defense: Closed | |
| Jun 28, 2025 | Cook | 1–0 | Jackson | Round 3: Cook, Michael-Antony - Jackson, Oliver A | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jun 28, 2025 | Jackson | 1–0 | Layhe | Round 2: Jackson, Oliver A - Layhe, Simon | Caro-Kann Defense: Tartakower Variation | |
| Jun 27, 2025 | Ashton | 1–0 | Jackson | Round 1: Ashton, Alannah - Jackson, Oliver A | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Apr 28, 2025 | Jackson | 1–0 | Moore | Round 7: Jackson, Oliver A - Moore, John C | King's Gambit Accepted: Abbazia Defense | |
| Apr 27, 2025 | Jackson | 0–1 | Littlewood | Round 5: Jackson, Oliver A - Littlewood, Paul E | Sicilian Defense: Grand Prix Attack | |
| Apr 27, 2025 | Dilleigh | 1–0 | Jackson | Round 6: Dilleigh, Stephen P - Jackson, Oliver A | King's Indian Defense: Orthodox Variation | |
| Apr 26, 2025 | De Coverly | 0–1 | Jackson | Round 4: De Coverly, Roger D - Jackson, Oliver A | Sicilian Defense: Old Sicilian | |
| Apr 25, 2025 | Jackson | ½–½ | Baker | Round 3: Jackson, Oliver A - Baker, Chris W | Alekhine Defense: Scandinavian Variation | |
| Apr 25, 2025 | Bray | 0–1 | Jackson | Round 2: Bray, David - Jackson, Oliver A | King's Indian Defense: Orthodox Variation | |
| Apr 24, 2025 | Jackson | 1–0 | Hawkins | Round 1: Jackson, Oliver A - Hawkins, James N H | King's Gambit Declined: Classical Variation | |
| Feb 23, 2025 | Jackson | 1–0 | Nilim | Round 5: Jackson, Oliver A - Nilim, Armaan | King's Gambit Accepted: Abbazia Defense | |
| Feb 23, 2025 | Tso | ½–½ | Jackson | Round 4: Tso, Chi Wai - Jackson, Oliver A | Benko Gambit Accepted: Modern Variation | |
| Feb 22, 2025 | Jackson | 1–0 | Tomas Leistrum | Round 2: Jackson, Oliver A - Tomas Leistrum | Caro-Kann Defense: Tartakower Variation | |
| Feb 22, 2025 | Anjulan | 0–1 | Jackson | Round 3: Anjulan, Ashwin - Jackson, Oliver A | Sicilian Defense: Staunton-Cochrane Variation | |
| Jul 31, 2024 | Jackson | 1–0 | Bray | Round 3: Jackson, Oliver A - Bray, David | Sicilian Defense: Grand Prix Attack | |
| Jul 29, 2024 | Jackson | ½–½ | Vickery | Round 1: Jackson, Oliver A - Vickery, Jim E | Bishop's Opening: Vienna Hybrid | |
| May 14, 2024 | Jaksland | 1–0 | Jackson | European Senior Team Chess Championship 2024 - Section 50 + | Sicilian Defense: Alapin Variation | |
| May 13, 2024 | Jackson | 0–1 | Mueller | European Senior Team Chess Championship 2024 - Section 50 + | Sicilian Defense: Closed | |
| May 12, 2024 | Zimmermann | 0–1 | Jackson | European Senior Team Chess Championship 2024 - Section 50 + | Sicilian Defense: Alapin Variation | |
| May 11, 2024 | Jackson | ½–½ | Van der Werf | European Senior Team Chess Championship 2024 - Section 50 + | Vienna Game: Vienna Gambit, Paulsen Attack | |
| May 9, 2024 | Jackson | 0–1 | Motuz | European Senior Team Chess Championship 2024 - Section 50 + | French Defense: Steinitz Variation | |
| May 7, 2024 | Thorhallsson | 1–0 | Jackson | European Senior Team Chess Championship 2024 - Section 50 + | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Feb 11, 2024 | Jackson | 0–1 | Sarakauskas | Round 5: Jackson, Oliver A - Sarakauskas, Gediminas | Vienna Game: Vienna Gambit, Paulsen Attack | |
| Feb 11, 2024 | Nastase | 0–1 | Jackson | Round 4: Nastase, Andreea - Jackson, Oliver A | Benko Gambit Accepted: Yugoslav | |
| Feb 10, 2024 | Jackson | 0–1 | Hamer | Round 3: Oliver A Jackson - Martyn Hamer | King's Gambit Accepted: Schallopp Defense | |
| Aug 4, 2024 | Jackson | 0–1 | Hutchinson | Round 7: Jackson, Oliver A - Hutchinson, Paul A | Pirc Defense | |
| Aug 3, 2024 | Burnett | ½–½ | Jackson | Round 6: Burnett, Jim - Jackson, Oliver A | English Opening: Symmetrical Variation, Anti-Benoni Variation | |
| Aug 2, 2024 | Punnett | 0–1 | Jackson | Round 5: Punnett, Alan K - Jackson, Oliver A | Sicilian Defense: Kan Variation, Knight Variation | |
| Aug 1, 2024 | Jackson | 0–1 | Smith | Round 4: Jackson, Oliver A - Smith, Andrew Philip | King's Gambit Accepted: Modern Defense | |
| Jul 30, 2024 | Moyse | 0–1 | Jackson | Round 2: Moyse, Nigel John - Jackson, Oliver A | Trompowsky Attack | |
| Aug 21, 2022 | Jackson | 0–1 | Hutchinson | Chessable British Chess Championships: Seniors 65+ | Scandinavian Defense: Main Line, Mieses Variation | |
| Aug 19, 2022 | Jackson | 1–0 | Newton | Chessable British Chess Championships: Seniors 65+ | Modern Defense | |
| Aug 18, 2022 | Nunn | 1–0 | Jackson | Chessable British Chess Championships: Seniors 65+ | Sicilian Defense: Kan Variation, Modern Variation | |
| Aug 17, 2022 | Jackson | 1–0 | Dennis | Chessable British Chess Championships: Seniors 65+ | Sicilian Defense: Grand Prix Attack | |
| Aug 16, 2022 | Simpson | 0–1 | Jackson | Chessable British Chess Championships: Seniors 65+ | Sicilian Defense: Alapin Variation | |
| Aug 15, 2022 | Jackson | 1–0 | Collins | Chessable British Chess Championships: Seniors 65+ | French Defense: Winawer Variation, Classical Variation | |
| Oct 9, 2021 | Myall | 1–0 | Jackson | British Over 65 2021 | Indian Defense | |
| Oct 8, 2021 | Jackson | 0–1 | De Coverly | British Over 65 2021 | Bishop's Opening: Vienna Hybrid, Spielmann Attack | |
| Oct 7, 2021 | Milnes | 0–1 | Jackson | British Over 65 2021 | Bird Opening | |
| Oct 6, 2021 | Jackson | 1–0 | Reuben | British Over 65 2021 | Sicilian Defense: Closed | |
| Oct 5, 2021 | Scowen | 0–1 | Jackson | British Over 65 2021 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Oct 4, 2021 | Jackson | 1–0 | Calvert | British Over 65 2021 | Scandinavian Defense: Bronstein Variation | |
| — | Norman | 0–1 | Jackson | Chessable British Chess Championships: Seniors 65+ | King's Indian Defense: Fianchetto Variation, Classical Variation | |