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