| Tournament | Round | Carol Colwill | Teresa Dean |
| 10.03.2013 SA Championship (SA) | 6 | 299 | 457 |
| 10.03.2013 SA Championship (SA) | 16 | 379 | 379 |
| 09.09.2017 SAT 4+4 (SA) | 7 | 343 | 342 |
| 10.03.2019 SA Championship (SA) | 10 | 429 | 328 |
| Head-to-head after 4 games | 2.5 | 1.5 | |
| Average score | 362.5 | 376.5 | |