| Tournament | Round | Joan Colburt | Anne Drew |
| 03.05.1998 Maelstrom (QLD) | 4 | 423 | 415 |
| 23.08.1998 Queensland Championships (QLD) | 11 | 358 | 349 |
| 13.09.1998 Toowoomba (QLD) | 2 | 344 | 304 |
| 02.05.1999 Maelstrom (QLD) | 6 | 432 | 332 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 389.25 | 350 | |
| Spread: | 157 | -157 | |