| Date | Tournament | State | Round | Margaret Griggs | Maureen Harrison |
|---|---|---|---|---|---|
| 25/01/2004 | Ulverstone | TAS | 9 | 351 | 343 |
| 23/01/2005 | Ulverstone | TAS | 2 | 420 | 302 |
| 22/01/2006 | Ulverstone | TAS | 8 | 438 | 351 |
| 14/05/2006 | Scamander | TAS | 4 | 389 | 262 |
| 14/05/2006 | Scamander | TAS | 13 | 390 | 283 |
| 30/07/2006 | Campbell Town | TAS | 6 | 375 | 355 |
| 27/08/2006 | Exeter Round Robin | TAS | 1 | 318 | 285 |
| 27/08/2006 | Exeter Round Robin | TAS | 8 | 324 | 405 |
| 04/02/2007 | Ulverstone | TAS | 11 | 347 | 371 |
| 06/05/2007 | East Coast | TAS | 10 | 280 | 335 |
| 29/07/2007 | Launceston | TAS | 8 | 389 | 283 |
| 03/02/2008 | Ulverstone | TAS | 5 | 269 | 398 |
| 02/11/2008 | Tasmanian Championships | TAS | 8 | 414 | 288 |
| 08/02/2009 | Ulverstone | TAS | 14 | 398 | 333 |
| 29/06/2013 | Bellerive | TAS | 2 | 456 | 338 |
| 30/06/2013 | Bellerive Open | TAS | 2 | 353 | 312 |
| 13/10/2013 | Campbell Town | TAS | 2 | 433 | 287 |
| 17/08/2025 | Queensland Championship | QLD | 7 | 466 | 284 |
| Head-to-head after 18 games | 14 | 4 | |||
| Average score | 378.33 | 323.06 | |||
| Spread | 995 | -995 | |||