| Tournament | Round | Mary Mackie | Merle Holding |
| 22.02.1998 Ballarat (VIC) | 5 | 353 | 374 |
| 12.09.1999 Victorian Country Championships (VIC) | 2 | 331 | 315 |
| 06.02.2000 Ballarat (VIC) | 6 | 311 | 368 |
| 05.03.2000 Bendigo (VIC) | 1 | 374 | 366 |
| 04.03.2001 Bendigo (VIC) | 5 | 425 | 312 |
| 9.02.2002 Ballarat (VIC) | 5 | 352 | 319 |
| 02.03.2003 Bendigo (VIC) | 6 | 398 | 267 |
| 09.11.2003 Geelong (VIC) | 6 | 321 | 277 |
| 28.02.2004 Ballarat (VIC) | 2 | 337 | 294 |
| 07.08.2004 Victorian Country Championships (VIC) | 4 | 359 | 356 |
| 03.09.2005 Ballarat (VIC) | 4 | 397 | 257 |
| 06.08.2006 Victorian Country Championships (VIC) | 6 | 409 | 304 |
| Head-to-head after 12 games | 10 | 2 | |
| Average score | 363.91 | 317.41 | |
| Spread: | 558 | -558 | |