| Tournament | Round | Zina Costanzo | Anne Michell |
| 18.11.2001 SA/Victoria Border Challenge (VIC) | 10 | 389 | 387 |
| 18.11.2001 SA/Victoria Border Challenge (VIC) | 11 | 400 | 372 |
| 18.11.2001 SA/Victoria Border Challenge (VIC) | 12 | 390 | 381 |
| 03.11.2002 SA/Victoria Border Challenge Dimboola (VIC) | 7 | 334 | 503 |
| 02.11.2003 SA/Victoria Border Challenge Dimboola (VIC) | 9 | 347 | 359 |
| 12.04.2004 Australian Championships (ACT) | 8 | 298 | 362 |
| 14.06.2004 Victorian Championships (VIC) | 9 | 370 | 273 |
| 14.06.2004 Victorian Championships (VIC) | 23 | 424 | 386 |
| Head-to-head after 8 games | 5 | 3 | |
| Average score | 369 | 377.87 | |
| Spread: | -71 | 71 | |