| Tournament | Round | Joanna Moss | Alan Mathews |
| 01.06.2015 WA Champs (WA) | 1 | 467 | 278 |
| 27.02.2022 Feb 2022 Bisection (WA) | 4 | 390 | 397 |
| 21.08.2022 August Bisection (WA) | 2 | 406 | 409 |
| 06.10.2024 October Bisection (WA) | 2 | 354 | 309 |
| 10.11.2024 November Trisection (WA) | 5 | 405 | 321 |
| 12.01.2025 January Open (WA) | 2 | 358 | 366 |
| 09.03.2025 March Trisection (WA) | 7 | 301 | 396 |
| 01.06.2025 WA Championship 2025 (WA) | 3 | 325 | 331 |
| 05.10.2025 October Bisection (WA) | 3 | 405 | 332 |
| 09.11.2025 November Bisection (WA) | 4 | 286 | 419 |
| 08.03.2026 March Trisect (WA) | 2 | 432 | 322 |
| Head-to-head after 11 games | 5 | 6 | |
| Average score | 375.36 | 352.72 | |
| Spread: | 249 | -249 | |