| Tournament | Round | Harry Malcolm | Jan Serisier |
| 21.01.1999 City of Sydney Masters (NSW) | 9 | 495 | 256 |
| 01.08.1999 Winter Masters (NSW) | 1 | 350 | 361 |
| 19.01.2002 Baulkham Hills Kick-off (NSW) | 5 | 377 | 380 |
| 04.05.2003 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 8 | 344 | 298 |
| 25.01.2004 City of Sydney International Masters (NSW) | 10 | 432 | 237 |
| 02.05.2004 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 3 | 337 | 358 |
| 17.04.2005 NSW/Victoria Border Challenge, Wagga Wagga (NSW) | 7 | 346 | 405 |
| 29.01.2006 City of Sydney International Masters (NSW) | 7 | 451 | 390 |
| 17.04.2006 Australian Championships (QLD) | 1 | 435 | 337 |
| 17.04.2006 Australian Championships (QLD) | 12 | 394 | 264 |
| 30.04.2006 NSW vs Victoria Border Challenge Wagga Wagga (NSW) | 2 | 330 | 397 |
| 24.03.2008 Australian Championship (VIC) | 7 | 449 | 396 |
| Head-to-head after 12 games | 7 | 5 | |
| Average score | 395 | 339.91 | |
| Spread: | 661 | -661 | |