| Tournament | Round | Sharon Sorensen | Louisa Atsas |
| 05.04.2010 Aus Championship (SA) | 16 | 334 | 286 |
| 28.03.2016 Australian Championship (SA) | 20 | 404 | 360 |
| 22.04.2019 2019 Australian Championship (TAS) | 12 | 414 | 375 |
| 11.03.2023 SA Scrabble Champs (SA) | 15 | 339 | 321 |
| 13.03.2023 Womens Championship (SA) | 2 | 415 | 351 |
| 19.04.2025 National Championship and Plate (SA) | 1 | 378 | 281 |
| Head-to-head after 6 games | 6 | 0 | |
| Average score | 380.66 | 329 | |
| Spread: | 310 | -310 | |