| Tournament | Round | Trevor Tao | Barry Harridge |
| 16.10.2011 SA/Vic Border Challenge (SA) | 10 | 439 | 356 |
| 18.10.2015 SA/Vic Border Challenge (SA) | 10 | 456 | 506 |
| 24.11.2019 VicSA Border Challenge (SA) | 4 | 386 | 375 |
| Head-to-head after 3 games | 2 | 1 | |
| Average score | 427 | 412.33 | |
| Spread: | 44 | -44 | |