| Tournament | Round | Mary Dixon | Joan Riley |
| 05.07.1998 Southern Tasmania (TAS) | 1 | 237 | 401 |
| 05.07.1998 Southern Tasmania (TAS) | 12 | 295 | 394 |
| 19.09.1998 Tasmanian Championships (TAS) | 7 | 318 | 391 |
| 31.10.1999 Tasmanian Championships (TAS) | 9 | 395 | 360 |
| 21.05.2000 May (TAS) | 1 | 343 | 366 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 317.6 | 382.4 | |
| Spread: | -324 | 324 | |