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