| Date | Tournament | State | Round | Derek McKenzie | Doris Schwenn |
|---|---|---|---|---|---|
| 15/04/1998 | Australian Championships | TAS | 17 | 406 | 397 |
| 05/04/1999 | Australian Championships | NSW | 1 | 477 | 351 |
| 05/04/1999 | Australian Championships | NSW | 21 | 428 | 306 |
| Head-to-head after 3 games | 3 | 0 | |||
| Average score | 437.00 | 351.33 | |||
| Spread | 257 | -257 | |||