| Date | Tournament | State | Round | Marge Roberts | Thanu Sriskantharaja |
|---|---|---|---|---|---|
| 05/11/2023 | November Bisection | WA | 3 | 398 | 311 |
| 11/02/2024 | February Bisection | WA | 2 | 395 | 288 |
| 06/10/2024 | October Bisection | WA | 3 | 375 | 357 |
| 07/12/2025 | Graham Bell Memorial | WA | 4 | 377 | 326 |
| Head-to-head after 4 games | 4 | 0 | |||
| Average score | 386.25 | 320.50 | |||
| Spread | 263 | -263 | |||