| Date | Tournament | State | Round | Meg Henderson | Zina Costanzo |
|---|---|---|---|---|---|
| 08/06/1998 | Victorian Championships | VIC | 1 | 518 | 358 |
| 05/07/1998 | High Country | VIC | 7 | 391 | 364 |
| 05/03/2000 | Bendigo | VIC | 1 | 395 | 432 |
| 12/06/2000 | Victorian Championships | VIC | 13 | 383 | 333 |
| 09/06/2001 | Victorian Championships | VIC | 19 | 365 | 357 |
| 10/06/2002 | Victorian Championships | VIC | 9 | 391 | 264 |
| 02/03/2003 | Bendigo | VIC | 6 | 445 | 305 |
| 21/04/2003 | Australian Championships | SA | 14 | 438 | 371 |
| 14/11/2004 | Geelong | VIC | 4 | 343 | 353 |
| 01/05/2005 | Mayday | VIC | 7 | 427 | 333 |
| 13/06/2005 | Victorian Championships | VIC | 5 | 426 | 255 |
| 27/11/2005 | McKinnon | VIC | 1 | 411 | 348 |
| 24/03/2006 | March Notturno | VIC | 4 | 328 | 404 |
| 20/10/2007 | WSC Fundraiser 2 | VIC | 2 | 349 | 467 |
| Head-to-head after 14 games | 10 | 4 | |||
| Average score | 400.71 | 353.14 | |||
| Spread | 666 | -666 | |||