| Tournament | Round | John Spaan | Gwen Chadwick |
| 05.05.2002 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 9 | 373 | 367 |
| 04.05.2003 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 9 | 364 | 324 |
| 14.09.2003 Melbourne Masters (VIC) | 1 | 467 | 292 |
| 02.05.2004 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 3 | 475 | 324 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 419.75 | 326.75 | |
| Spread: | 372 | -372 | |