| Date | Tournament | State | 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 | |||