| Tournament | Round | Dorothy Horton | Joan Riley |
| 08.02.1998 North West (TAS) | 5 | 483 | 274 |
| 02.02.2002 Ulverstone February (TAS) | 7 | 373 | 297 |
| 20.04.2002 Beaumaris (TAS) | 14 | 428 | 340 |
| 23.01.2005 Ulverstone (TAS) | 12 | 394 | 266 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 419.5 | 294.25 | |
| Spread: | 501 | -501 | |