| Tournament | Round | Noela Costello | Marge Roberts |
| 25.06.2000 Advanced Intermediate Recreation (WA) | 6 | 299 | 356 |
| 10.09.2000 Yokine (WA) | 4 | 357 | 323 |
| 08.12.2002 Marathon (WA) | 3 | 323 | 338 |
| 08.12.2002 Marathon (WA) | 10 | 251 | 368 |
| 13.07.2003 Bassendean (WA) | 6 | 330 | 308 |
| 30.05.2004 Melville (WA) | 7 | 424 | 266 |
| 19.06.2004 Western Australian Championships (WA) | 3 | 424 | 311 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 344 | 324.28 | |
| Spread: | 138 | -138 | |