| Tournament | Round | Gianna Devcic | John Parker |
| 27.06.2010 Trans Tasman Support (VIC) | 3 | 273 | 427 |
| 07.07.2013 World Youth Fundraiser (VIC) | 2 | 336 | 332 |
| 21.07.2013 Nunawading (VIC) | 7 | 265 | 373 |
| 30.03.2014 Nunawading (VIC) | 1 | 357 | 367 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 307.75 | 374.75 | |
| Spread: | -268 | 268 | |