| Tournament | Round | Harry Malcolm | Doris Schwenn |
| 15.04.1998 Australian Championships (TAS) | 19 | 332 | 447 |
| 14.02.1999 South Australian Championships (SA) | 2 | 348 | 346 |
| 22.04.2000 Australian Championships (QLD) | 9 | 479 | 314 |
| 03.11.2002 SA/Victoria Border Challenge Dimboola (VIC) | 6 | 364 | 375 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 380.75 | 370.5 | |
| Spread: | 41 | -41 | |