| Tournament | Round | Kate Horan | Gwen Kirkham |
| 12.07.1998 WA Masters (WA) | 12 | 391 | 377 |
| 02.08.1998 Bassendean (WA) | 2 | 398 | 366 |
| 18.10.1998 Rockingham (WA) | 5 | 348 | 408 |
| 14.02.1999 Fremantle (WA) | 5 | 422 | 245 |
| 14.03.1999 Bunbury (WA) | 1 | 512 | 246 |
| 11.07.1999 Western Australian Masters (WA) | 10 | 328 | 313 |
| Head-to-head after 6 games | 5 | 1 | |
| Average score | 399.83 | 325.83 | |
| Spread: | 444 | -444 | |