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