| Tournament | Round | Thanu Sriskantharaja | Marge Roberts |
| 05.11.2023 November Bisection (WA) | 3 | 311 | 398 |
| 11.02.2024 February Bisection (WA) | 2 | 288 | 395 |
| 06.10.2024 October Bisection (WA) | 3 | 357 | 375 |
| 07.12.2025 Graham Bell Memorial (WA) | 4 | 326 | 377 |
| Head-to-head after 4 games | 0 | 4 | |
| Average score | 320.5 | 386.25 | |
| Spread: | -263 | 263 | |