| Tournament | Round | Tony Williams | Karrin Henderson |
| 01.04.2013 Australian Championship (QLD) | 1 | 442 | 448 |
| 25.08.2019 WESPA Seniors 2019 (QLD) | 19 | 384 | 386 |
| 16.04.2022 Australian Championship (QLD) | 11 | 307 | 380 |
| 28.01.2024 CSIM 2024 (NSW) | 11 | 401 | 391 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 383.5 | 401.25 | |
| Spread: | -71 | 71 | |