| Tournament | Round | Gwen Chadwick | Mary Campbell |
| 16.05.1998 Dandenong (VIC) | 2 | 323 | 345 |
| 21.02.1999 Camberwell (VIC) | 4 | 416 | 319 |
| 23.05.1999 Dandenong (VIC) | 2 | 340 | 345 |
| 14.06.1999 Victorian Championships (VIC) | 9 | 400 | 383 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 369.75 | 348 | |
| Spread: | 87 | -87 | |