| Tournament | Round | Derek McKenzie | Betty Foreman |
| 25.01.1998 City of Sydney International Masters (NSW) | 7 | 362 | 334 |
| 17.05.1998 Ulladulla (NSW) | 7 | 400 | 322 |
| 20.06.1998 Wollongong Marj Babb (NSW) | 7 | 338 | 315 |
| 05.10.1998 New South Wales Championships (NSW) | 10 | 274 | 434 |
| 12.12.1998 North Shore (NSW) | 1 | 381 | 304 |
| 01.08.1999 Winter Masters (NSW) | 6 | 406 | 318 |
| 21.10.2000 Spring Marathon (NSW) | 2 | 345 | 392 |
| Head-to-head after 7 games | 5 | 2 | |
| Average score | 358 | 345.57 | |
| Spread: | 87 | -87 | |