| Jun 28, 2026 | Cheung | 1–0 | Ackley | Round 4: Cheung, Leo - Ackley, Peter J E | Modern Defense: Standard Defense | |
| Jun 27, 2026 | Ackley | ½–½ | Woozeer | Round 3: Ackley, Peter J E - Woozeer, Seth | Hungarian Opening: Indian Defense | |
| Jun 27, 2026 | Surtees | 1–0 | Ackley | Round 2: Surtees, Mike J - Ackley, Peter J E | Modern Defense | |
| Jun 26, 2026 | Ackley | 1–0 | Marsh | Round 1: Ackley, Peter J E - Marsh, Aram | Lasker Simul Special | |
| Mar 22, 2026 | Shankar | 1–0 | Ackley | Round 8: Shankar, Yashwardhan - Ackley, Peter J E | Pirc Defense | |
| Mar 21, 2026 | Ackley | ½–½ | Vyas | Round 7: Ackley, Peter J E - Vyas, Alisha | Hungarian Opening: Symmetrical Variation | |
| Feb 8, 2026 | Camp | ½–½ | Ackley | Round 6: Camp, Imogen A L - Ackley, Peter J E | Modern Defense: Pseudo-Austrian Attack | |
| Feb 7, 2026 | Ackley | 0–1 | Sullivan | Round 5: Ackley, Peter J E - Sullivan, Daniel | Zukertort Opening: Reversed Grünfeld | |
| Jan 11, 2026 | Foo | 1–0 | Ackley | Round 4: Foo, Zhi Rong Benjamin - Ackley, Peter J E | Modern Defense: Standard Defense | |
| Jan 10, 2026 | Ackley | ½–½ | Bucher | Round 3: Ackley, Peter J E - Bucher, Grant W | Hungarian Opening | |
| Nov 2, 2025 | Swanson | ½–½ | Ackley | Round 2: Swanson, Stephen - Ackley, Peter J E | Sicilian Defense: Closed | |
| Nov 1, 2025 | Ackley | 1–0 | Duckers | Round 1: Ackley, Peter J E - Duckers, Harvey L | English Opening: King's English Variation | |
| Jun 29, 2025 | Ackley | ½–½ | Woozeer | Round 5: Ackley, Peter J E - Woozeer, Seth | Hungarian Opening: Symmetrical Variation | |
| Jun 29, 2025 | Shivakumar | ½–½ | Ackley | Round 4: Shivakumar, Akshath - Ackley, Peter J E | Modern Defense: Averbakh System | |
| Jun 28, 2025 | Ackley | 0–1 | Blackburn | Round 3: Ackley, Peter J E - Blackburn, Jonathan L B | Hungarian Opening | |
| Jun 28, 2025 | Mize | 0–1 | Ackley | Round 2: Mize, Dylan - Ackley, Peter J E | Queen's Pawn Game | |
| Jun 27, 2025 | Ackley | ½–½ | Dissanayake | Round 1: Ackley, Peter J E - Dissanayake, Sathsara | Hungarian Opening: Indian Defense | |
| May 5, 2025 | Ackley | 1–0 | Calvert | Round 11: Ackley, Peter J E - Calvert, D Ian | Hungarian Opening: Indian Defense | |
| May 4, 2025 | Webb | * | Ackley | Round 10: Webb, Richard M - Ackley, Peter J E | ? | |
| May 3, 2025 | Ackley | 0–1 | Valdepenas Octavio | Round 9: Ackley, Peter J E - Valdepenas Octavio, Javier | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Feb 15, 2025 | Ackley | ½–½ | Wills | Round 5: Ackley, Peter J E - Wills, Tom | English Opening: Caro-Kann Defensive System | |
| Jan 19, 2025 | Ackley | ½–½ | Henderson | 32nd 4NCL Congress | Nimzo-Larsen Attack: Modern Variation | |
| Jan 19, 2025 | Hariharan | ½–½ | Ackley | 32nd 4NCL Congress | Queen's Pawn Game | |
| Jan 18, 2025 | Ackley | 1–0 | Wedge | 32nd 4NCL Congress | English Opening: Great Snake Variation | |
| Jan 18, 2025 | Hebden | 1–0 | Ackley | 32nd 4NCL Congress | Pirc Defense: Classical Variation | |
| Jan 17, 2025 | Ackley | ½–½ | Waterfield | 32nd 4NCL Congress | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Bc5 | |
| Oct 16, 2022 | Ackley | ½–½ | Larchikov | Hull 4NCL International Open | Hungarian Opening | |
| Oct 16, 2022 | Cooper | ½–½ | Ackley | Hull 4NCL International Open | Pirc Defense: Bayonet Attack | |
| Oct 15, 2022 | Ackley | ½–½ | Britton | Hull 4NCL International Open | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Oct 15, 2022 | Gillespie | 0–1 | Ackley | Hull 4NCL International Open | Pirc Defense: Classical Variation | |
| Oct 14, 2022 | Ackley | ½–½ | Subramanian | Hull 4NCL International Open | ? | |
