| Tournament | Round | Joan Buchanan | Betty Coleman |
| 11.01.1998 Baulkham Hills (NSW) | 1 | 333 | 386 |
| 01.03.1998 Balmain (NSW) | 6 | 317 | 395 |
| 17.05.1998 Ulladulla (NSW) | 5 | 353 | 347 |
| 05.10.1998 New South Wales Championships (NSW) | 8 | 333 | 454 |
| 14.11.1998 Sydney (NSW) | 7 | 381 | 373 |
| 04.10.1999 New South Wales Championships (NSW) | 15 | 354 | 345 |
| 07.07.2000 Chatswood (NSW) | 6 | 344 | 324 |
| 27.05.2001 Ulladulla (NSW) | 12 | 366 | 339 |
| Head-to-head after 8 games | 5 | 3 | |
| Average score | 347.62 | 370.37 | |
| Spread: | -182 | 182 | |