| Tournament | Round | Susan Roberts | Karen Richards |
| 13.03.2016 SA Championship (SA) | 1 | 297 | 497 |
| 03.11.2022 Seniors Championship (NSW) | 24 | 444 | 321 |
| 11.03.2023 SA Scrabble Champs (SA) | 10 | 379 | 391 |
| 13.03.2023 Womens Championship (SA) | 2 | 381 | 398 |
| 09.03.2024 SA CHAMPS 2024 (SA) | 1 | 433 | 337 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 386.8 | 388.8 | |
| Spread: | -10 | 10 | |