| Tournament | Round | Louisa Atsas | Teresa Dean |
| 07.03.2010 SA Championship (SA) | 10 | 271 | 315 |
| 08.03.2014 SA Championship (SA) | 1 | 308 | 366 |
| 09.09.2017 SAT 4+4 (SA) | 3 | 367 | 419 |
| 12.03.2022 SA Scrabble Champs (SA) | 7 | 310 | 315 |
| 15.02.2026 SA February (SA) | 4 | 366 | 371 |
| 07.03.2026 SA Champs 2026 (SA) | 2 | 355 | 423 |
| 17.05.2026 SA MAY Four Four (SA) | 4 | 303 | 489 |
| Head-to-head after 7 games | 0 | 7 | |
| Average score | 325.71 | 385.42 | |
| Spread: | -418 | 418 | |