| Tournament | Round | Heather Lowden | John Spaan |
| 19.01.2000 January Open (SA) | 2 | 412 | 390 |
| 24.09.2006 Australian Masters and State Challenge Trophy (NSW) | 4 | 366 | 506 |
| 08.09.2007 AUST MASTERS & STATE CHALLENGE (VIC) | 8 | 463 | 283 |
| 13.09.2008 MASTERS AND STATE CHALLENGE TROPHY (VIC) | 17 | 462 | 368 |
| 13.09.2009 MASTERS AND STATE CHALLENGE TROPHY (NSW) | 10 | 255 | 461 |
| 12.09.2010 Australian Masters & State Challenge Trophy (VIC) | 7 | 420 | 406 |
| Head-to-head after 6 games | 4 | 2 | |
| Average score | 396.33 | 402.33 | |
| Spread: | -36 | 36 | |