| Tournament | Round | Marge Roberts | Chris Dyson |
| 08.12.2002 Marathon (WA) | 4 | 363 | 345 |
| 06.06.2005 Western Australian Championships (WA) | 7 | 338 | 312 |
| 06.06.2005 Western Australian Championships (WA) | 14 | 447 | 310 |
| 04.06.2006 Western Australian Championships (WA) | 4 | 371 | 253 |
| 04.06.2007 Western Australian Championships C & D (WA) | 2 | 362 | 324 |
| 24.08.2008 Rockingham (WA) | 2 | 357 | 297 |
| 03.06.2013 WA Championship (WA) | 9 | 313 | 297 |
| 03.06.2013 WA Championship (WA) | 16 | 333 | 331 |
| 04.10.2015 Rockingham (WA) | 6 | 411 | 339 |
| 06.06.2016 WA Championship (WA) | 9 | 341 | 384 |
| 31.07.2016 Bassendean (WA) | 6 | 309 | 295 |
| 21.08.2016 COOGEE (WA) | 2 | 452 | 311 |
| 09.10.2016 Rockingham (WA) | 3 | 324 | 323 |
| 22.01.2023 January Open (WA) | 6 | 319 | 362 |
| 19.03.2023 March Round Robin (WA) | 7 | 406 | 235 |
| Head-to-head after 15 games | 13 | 2 | |
| Average score | 363.06 | 314.53 | |
| Spread: | 728 | -728 | |