| Tournament | Round | Trevor Tao | Dianne Gibson |
| 14.07.2013 SA/Vic Border Challenge (SA) | 4 | 510 | 363 |
| 16.10.2016 Vic/SA Border Challenge (VIC) | 8 | 443 | 414 |
| 22.10.2017 SA/Vic Border Challenge (SA) | 10 | 255 | 465 |
| 21.10.2018 VicSA Border Challenge (VIC) | 1 | 413 | 341 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 405.25 | 395.75 | |
| Spread: | 38 | -38 | |