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