| Sep 14, 2025 | McCormack | ½–½ | Nield | Round 5: McCormack, Derek - Nield, Christopher | Benko Gambit Accepted: King Walk Variation | |
| Sep 14, 2025 | McKay | 1–0 | McCormack | Round 4: McKay, Jonathan - McCormack, Derek | Sicilian Defense: Closed, Traditional | |
| Sep 13, 2025 | McCormack | 1–0 | McAleer | Round 3: McCormack, Derek - McAleer, Thomas | Indian Defense: Normal Variation | |
| Sep 13, 2025 | McCormack | 1–0 | Murray | Round 2: McCormack, Derek - Murray, Frankie | Dutch Defense: Queen's Knight Variation | |
| Sep 12, 2025 | Malkin | 1–0 | McCormack | Round 1: Malkin, Jamie - McCormack, Derek | Sicilian Defense: Alapin Variation | |
| Jul 13, 2025 | McCormack | 1–0 | Thompson | Round 9: McCormack, Derek - Thompson, Connor | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Jul 12, 2025 | Mallick | 0–1 | McCormack | Round 8: Mallick, Sai - McCormack, Derek | Dutch Defense: Classical Variation | |
| Jul 11, 2025 | McCormack | ½–½ | Keenan | Round 7: McCormack, Derek - Keenan, Alex | Nimzo-Indian Defense: Kmoch Variation | |
| Jul 10, 2025 | McCormack | ½–½ | Murray | Round 6: McCormack, Derek - Murray, Frankie | Dutch Defense: Queen's Knight Variation | |
| Jul 10, 2025 | Roger | 1–0 | McCormack | Round 5: Roger, Michael - McCormack, Derek | Sicilian Defense: Old Sicilian | |
| Jul 9, 2025 | Pimentil | 0–1 | McCormack | Round 4: Pimentil, Stephen - McCormack, Derek | Polish Opening: Dutch Defense | |
| Jul 8, 2025 | McCormack | 1–0 | McGillivray | Round 3: McCormack, Derek - McGillivray, Calum | Slav Defense: Exchange Variation | |
| Jul 8, 2025 | Gera | 1–0 | McCormack | Round 2: Gera, Marvin - McCormack, Derek | Dutch Defense: Staunton Gambit | |
| Jul 7, 2025 | McCormack | ½–½ | McClymont | Round 1: McCormack, Derek - McClymont, Duncan | Nimzo-Indian Defense: Sämisch Variation | |
| Jul 14, 2024 | Meyer | 1–0 | McCormack | Round 9: Meyer, Henrik - McCormack, Derek | Nimzo-Larsen Attack: Classical Variation | |
| Jul 13, 2024 | McCormack | ½–½ | Dunnington | Round 8: McCormack, Derek - Dunnington, Angus J | English Defense | |
| Jul 12, 2024 | Holm | ½–½ | McCormack | Round 7: Holm, Ragnar - McCormack, Derek | Queen's Gambit Declined | |
| Jul 11, 2024 | Smith | 0–1 | McCormack | Round 6: Smith, Peter R - McCormack, Derek | Nimzo-Larsen Attack: Classical Variation | |
| Jul 11, 2024 | McCormack | 1–0 | Thompson | Round 5: McCormack, Derek - Thompson, Connor | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Jul 10, 2024 | Irving | 0–1 | McCormack | Round 4: Irving, Neil - McCormack, Derek | Queen's Gambit Declined | |
| Jul 9, 2024 | McCormack | 0–1 | Deepak Ambattu | Round 3: McCormack, Derek - Deepak Ambattu, Rithvik | Grünfeld Defense: Exchange Variation | |
| Jul 9, 2024 | Nield | ½–½ | McCormack | Round 2: Nield, Christopher - McCormack, Derek | Pirc Defense: Austrian Attack, Weiss Variation | |
| Jul 9, 2024 | Spencer | * | McCormack | Round 2: Spencer, Edwin A - McCormack, Derek | Sicilian Defense: Hyperaccelerated Dragon | |
| Jul 9, 2024 | Murdochy | * | McCormack | Round 2: Murdochy, Shivan - McCormack, Derek | Queen's Gambit Declined: Janowski Variation | |
| Jul 8, 2024 | McCormack | ½–½ | Spencer | Round 1: McCormack, Derek - Spencer, Edwin A | Benko Gambit Declined: Hjørring Countergambit | |
| May 27, 2024 | McCormack | 1–0 | Heron | Round 7: McCormack, Derek - Heron, Donald | Dutch Defense: Rubinstein Variation | |
| May 27, 2024 | Vadalia | ½–½ | McCormack | Round 6: Vadalia, Jainill - McCormack, Derek | Queen's Gambit Declined: Janowski Variation | |
| May 26, 2024 | McCormack | ½–½ | Srivastava | Round 5: McCormack, Derek - Srivastava, Aditya | Modern Defense: Averbakh System | |
| May 25, 2024 | Holm | 1–0 | McCormack | Round 2: Holm, Kristian Stuvik - McCormack, Derek | English Opening: King's English Variation | |
