| Tournament | Round | Derek McKenzie | Patricia Mitchell |
| 08.06.1998 Victorian Championships (VIC) | 19 | 439 | 323 |
| 05.10.1998 New South Wales Championships (NSW) | 7 | 401 | 380 |
| 05.10.1998 New South Wales Championships (NSW) | 20 | 335 | 317 |
| Head-to-head after 3 games | 3 | 0 | |
| Average score | 391.66 | 340 | |
| Spread: | 155 | -155 | |