28 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Williamson, Roger G | Kee, Steve | 1/2-1/2 | A10 | Blackpool Open 2025 | 2025-02-09 |
| Williamson, Roger G | Mulay, Partha | 1/2-1/2 | E94 | Blackpool Open 2025 | 2025-02-08 |
| Williamson, Roger G | Bryant, Harry | 1-0 | D43 | Blackpool Open 2025 | 2025-02-08 |
| Williamson, Roger G | Savidge, Daniel | 1-0 | A40 | Round 5: Williamson, Roger G - Savidge, Daniel | 2024-08-18 |
| Williamson, Roger G | Holm, Kristian Stuvik | 1/2-1/2 | B48 | Round 3: Williamson, Roger G - Holm, Kristian Stuvik | 2024-08-17 |
| Williamson, Roger G | Ernst Rindisbacher | 1-0 | A90 | Round 1: Williamson, Roger G - Ernst Rindisbacher | 2024-08-16 |
| Williamson, Roger G | Clarke, Brandon GI | 0-1 | D90 | Round 4: Williamson, Roger G - Clarke, Brandon GI | 2024-02-11 |
| Roger G Williamson | Bryan Harkness | 1-0 | D90 | Round 2: Roger G Williamson - Bryan Harkness | 2024-02-10 |
| Williamson, Roger G | Morris, Charles F | 1/2-1/2 | A40 | Newcastle-under-Lyme All-Play-All 2023 | 2023-08-13 |
| Williamson, Roger G | Boswell, Jacob Connor | 1/2-1/2 | E94 | Newcastle-under-Lyme All-Play-All 2023 | 2023-08-12 |
| Roger G Williamson | Timothy J Kett | 0-1 | A34 | Round 4: Roger G Williamson - Timothy J Kett | 2023-08-11 |
| Roger G Williamson | Alan J Walton | 1-0 | D37 | Round 2: Roger G Williamson - Alan J Walton | 2023-08-10 |
| Williamson, Roger G | Kryshtafor, Maksym | 1-0 | C81 | 29th 4NCL Congress Open | 2023-01-22 |
| Williamson, Roger G | Longson, Sarah N | 1/2-1/2 | C29 | 29th 4NCL Congress Open | 2023-01-21 |