50 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| McCormack, Derek | Mallick, Sai | 1/2-1/2 | D45 | Round 9: McCormack, Derek - Mallick, Sai | 2026-07-08 |
| McCormack, Derek | Cook, Sam | 0-1 | A57 | Round 7: McCormack, Derek - Cook, Sam | 2026-07-07 |
| McCormack, Derek | Grant, Jonathan I M | 1-0 | E20 | Round 5: McCormack, Derek - Grant, Jonathan I M | 2026-07-05 |
| McCormack, Derek | Giulian, Rosemary A | 1/2-1/2 | E20 | Round 3: McCormack, Derek - Giulian, Rosemary A | 2026-07-04 |
| McCormack, Derek | Shopynskyi, Vladyslav | 0-1 | A57 | Round 1: McCormack, Derek - Shopynskyi, Vladyslav | 2026-07-03 |
| McCormack, Derek | Al Dakl Alla, Humam | 1-0 | E20 | Round 5: McCormack, Derek - Al Dakl Alla, Humam | 2026-05-24 |
| McCormack, Derek | Burnett, Andrew | 0-1 | E81 | Round 3: McCormack, Derek - Burnett, Andrew | 2026-05-23 |
| McCormack, Derek | Lennox, Moray E S | 1/2-1/2 | D47 | Round 1: McCormack, Derek - Lennox, Moray E S | 2026-05-22 |
| McCormack, Derek | Nield, Christopher | 1/2-1/2 | A59 | Round 5: McCormack, Derek - Nield, Christopher | 2025-09-14 |
| McCormack, Derek | Murray, Frankie | 1-0 | A85 | Round 2: McCormack, Derek - Murray, Frankie | 2025-09-13 |
| McCormack, Derek | McAleer, Thomas | 1-0 | A50 | Round 3: McCormack, Derek - McAleer, Thomas | 2025-09-13 |
| McCormack, Derek | Thompson, Connor | 1-0 | D85 | Round 9: McCormack, Derek - Thompson, Connor | 2025-07-13 |
| McCormack, Derek | Keenan, Alex | 1/2-1/2 | E20 | Round 7: McCormack, Derek - Keenan, Alex | 2025-07-11 |
| McCormack, Derek | Murray, Frankie | 1/2-1/2 | A85 | Round 6: McCormack, Derek - Murray, Frankie | 2025-07-10 |
| McCormack, Derek | McGillivray, Calum | 1-0 | D10 | Round 3: McCormack, Derek - McGillivray, Calum | 2025-07-08 |
| McCormack, Derek | McClymont, Duncan | 1/2-1/2 | E25 | Round 1: McCormack, Derek - McClymont, Duncan | 2025-07-07 |
| McCormack, Derek | Dunnington, Angus J | 1/2-1/2 | A40 | Round 8: McCormack, Derek - Dunnington, Angus J | 2024-07-13 |
| McCormack, Derek | Thompson, Connor | 1-0 | D85 | Round 5: McCormack, Derek - Thompson, Connor | 2024-07-11 |
| McCormack, Derek | Deepak Ambattu, Rithvik | 0-1 | D85 | Round 3: McCormack, Derek - Deepak Ambattu, Rithvik | 2024-07-09 |
| McCormack, Derek | Spencer, Edwin A | 1/2-1/2 | A57 | Round 1: McCormack, Derek - Spencer, Edwin A | 2024-07-08 |
| McCormack, Derek | Heron, Donald | 1-0 | A84 | Round 7: McCormack, Derek - Heron, Donald | 2024-05-27 |
| McCormack, Derek | Srivastava, Aditya | 1/2-1/2 | A42 | Round 5: McCormack, Derek - Srivastava, Aditya | 2024-05-26 |
| Derek Mccormack | Jordan J Mcnaught | 1-0 | D36 | Round 5: Derek Mccormack - Jordan J Mcnaught | 2023-07-09 |
| Derek Mccormack | Roddy M Mckay | 1-0 | A41 | Round 2: Derek Mccormack - Roddy M Mckay | 2023-07-08 |
| Derek Mccormack | Andrew J Muir | 0-1 | D47 | Round 3: Derek Mccormack - Andrew J Muir | 2023-07-08 |