| Tournament | Round | Kate Horan | Sue Armstrong |
| 12.07.1998 WA Masters (WA) | 1 | 321 | 348 |
| 30.05.1999 Melville (WA) | 1 | 402 | 356 |
| 19.03.2000 Bunbury (WA) | 5 | 335 | 368 |
| 11.03.2001 Bunbury (WA) | 6 | 360 | 424 |
| 20.10.2002 Rockingham (WA) | 4 | 362 | 444 |
| 16.03.2003 Bunbury (WA) | 2 | 334 | 429 |
| 25.05.2003 Melville (WA) | 3 | 358 | 353 |
| 31.05.2003 Western Australian Championships (WA) | 2 | 438 | 312 |
| 19.06.2004 Western Australian Championships (WA) | 1 | 465 | 242 |
| Head-to-head after 9 games | 4 | 5 | |
| Average score | 375 | 364 | |
| Spread: | 99 | -99 | |