| Tournament | Round | Joan Buchanan | Donna MacDonald |
| 30.08.1998 Baulkham Hills (NSW) | 2 | 309 | 400 |
| 08.05.1999 Hassall Grove (NSW) | 1 | 263 | 411 |
| 24.03.2003 Blue Mountains (NSW) | 8 | 322 | 304 |
| 28.08.2004 Revesby (NSW) | 6 | 356 | 384 |
| 16.07.2005 Winter Challenge (NSW) | 13 | 390 | 310 |
| 27.08.2005 Revesby (NSW) | 2 | 402 | 293 |
| 25.08.2007 Revesby (NSW) | 2 | 320 | 359 |
| 03.01.2009 Janboree (NSW) | 3 | 416 | 317 |
| 02.05.2009 Sydney West (NSW) | 5 | 411 | 395 |
| 02.01.2010 Janboree (NSW) | 4 | 303 | 437 |
| Head-to-head after 10 games | 5 | 5 | |
| Average score | 349.2 | 361 | |
| Spread: | -118 | 118 | |