| Date | Tournament | State | Round | Harry Malcolm | Derek McKenzie |
|---|---|---|---|---|---|
| 08/06/1998 | Victorian Championships | VIC | 9 | 363 | 388 |
| 05/07/1998 | High Country | VIC | 3 | 257 | 406 |
| 01/08/1999 | Winter Masters | NSW | 16 | 399 | 321 |
| 04/10/1999 | New South Wales Championships | NSW | 16 | 260 | 369 |
| 22/04/2000 | Australian Championships | QLD | 10 | 438 | 323 |
| Head-to-head after 5 games | 2 | 3 | |||
| Average score | 343.40 | 361.40 | |||
| Spread | -90 | 90 | |||