| Date | Tournament | State | Round | John Spaan | Doris Schwenn |
|---|---|---|---|---|---|
| 16/01/1999 | January | SA | 5 | 388 | 374 |
| 23/05/1999 | May | SA | 2 | 389 | 410 |
| 22/08/1999 | August | SA | 1 | 485 | 306 |
| 21/11/1999 | November | SA | 1 | 479 | 386 |
| 23/03/2001 | South Australian Championships | SA | 5 | 387 | 297 |
| Head-to-head after 5 games | 4 | 1 | |||
| Average score | 425.60 | 354.60 | |||
| Spread | 355 | -355 | |||