| Tournament | Round | Carolyn Watt | Marge Roberts |
| 13.07.2003 Bassendean (WA) | 5 | 390 | 346 |
| 06.08.2023 Glenys Lawrie Memorial (WA) | 2 | 382 | 354 |
| 02.06.2024 WA State Championship (WA) | 7 | 463 | 288 |
| Head-to-head after 3 games | 3 | 0 | |
| Average score | 411.66 | 329.33 | |
| Spread: | 247 | -247 | |