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