| Tournament | Round | Alan Mathews | Carolyn Watt |
| 15.05.2005 Melville (WA) | 4 | 322 | 376 |
| 08.01.2006 Summer Maximin (WA) | 4 | 330 | 396 |
| 02.06.2014 WA Championship (WA) | 16 | 353 | 321 |
| 01.06.2015 WA Champs (WA) | 17 | 388 | 313 |
| 10.07.2016 Bisection July (WA) | 5 | 255 | 436 |
| 21.08.2016 COOGEE (WA) | 6 | 364 | 487 |
| 20.05.2018 Melville (WA) | 2 | 424 | 426 |
| 04.06.2018 WA Championship (WA) | 18 | 474 | 348 |
| 20.01.2019 Jan Half PM (WA) | 3 | 340 | 396 |
| 05.06.2022 WA State 2022 (WA) | 6 | 255 | 484 |
| 05.06.2022 WA State 2022 (WA) | 11 | 263 | 503 |
| Head-to-head after 11 games | 3 | 8 | |
| Average score | 342.54 | 407.81 | |
| Spread: | -718 | 718 | |