| Tournament | Round | Colleen Walker | Margaret Andrews |
| 06.10.2003 NSW Championships (NSW) | 8 | 252 | 397 |
| 14.08.2005 Oatlands (NSW) | 6 | 339 | 259 |
| 03.10.2005 New South Wales Championships (NSW) | 9 | 372 | 406 |
| 29.10.2005 Sydney Club Silver Jubilee (NSW) | 7 | 351 | 379 |
| 03.12.2005 Turramurra (NSW) | 7 | 395 | 352 |
| 08.04.2006 Blacktown (NSW) | 6 | 336 | 321 |
| 23.07.2006 Winter Challenge (NSW) | 3 | 295 | 392 |
| 02.10.2006 New South Wales Championships (NSW) | 5 | 386 | 375 |
| 25.02.2007 Matchplay Qualifier (NSW) | 4 | 427 | 413 |
| 20.05.2007 Ulladulla 2007 (NSW) | 9 | 351 | 454 |
| 04.08.2007 WSC Fundraiser (NSW) | 2 | 409 | 382 |
| 01.10.2007 New South Wales Champs (NSW) | 12 | 437 | 318 |
| 15.03.2008 Wyong (NSW) | 7 | 394 | 355 |
| 13.09.2008 Sydney Club (NSW) | 1 | 371 | 339 |
| 18.10.2008 Spring Marathon (NSW) | 12 | 390 | 286 |
| 06.09.2009 hillsopen (NSW) | 5 | 345 | 424 |
| 18.09.2010 Ulladulla 2010 (NSW) | 14 | 378 | 310 |
| 27.02.2011 Matchplay Qualifier (NSW) | 1 | 358 | 341 |
| Head-to-head after 18 games | 12 | 6 | |
| Average score | 365.88 | 361.27 | |
| Spread: | 83 | -83 | |