| Tournament | Round | Cheryl Michler | Sal Costanzo |
| 21.01.1999 City of Sydney Masters (NSW) | 1 | 299 | 459 |
| 14.06.1999 Victorian Championships (VIC) | 12 | 384 | 407 |
| 01.08.1999 Winter Masters (NSW) | 15 | 484 | 424 |
| 01.08.1999 Winter Masters (NSW) | 18 | 327 | 319 |
| 30.01.2000 City of Sydney International Masters (NSW) | 13 | 354 | 351 |
| 22.04.2000 Australian Championships (QLD) | 14 | 304 | 417 |
| 27.01.2002 City of Sydney International Masters (NSW) | 8 | 355 | 403 |
| Head-to-head after 7 games | 3 | 4 | |
| Average score | 358.14 | 397.14 | |
| Spread: | -273 | 273 | |