| Tournament | Round | Sal Costanzo | Derek Mckenzie |
| 21.01.1999 City of Sydney Masters (NSW) | 4 | 518 | 331 |
| 22.04.2000 Australian Championships (QLD) | 8 | 296 | 631 |
| 16.04.2001 Australian Championships (VIC) | 7 | 336 | 495 |
| 24.03.2008 Australian Championship (VIC) | 8 | 355 | 418 |
| 24.03.2008 Australian Championship (VIC) | 18 | 351 | 492 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 371.2 | 473.4 | |
| Spread: | -511 | 511 | |