| Tournament | Round | Ivy Nicholls | Betty Foreman |
| 21.04.2003 Australian Championships (SA) | 13 | 308 | 389 |
| 12.04.2004 Australian Championships (ACT) | 1 | 338 | 370 |
| 05.04.2010 Aus Championship (SA) | 16 | 372 | 357 |
| 25.04.2011 Aus Championship (ACT) | 23 | 354 | 333 |
| 21.04.2014 Australian Championship (NSW) | 8 | 408 | 391 |
| 28.03.2016 Australian Championship (SA) | 6 | 339 | 358 |
| 28.03.2016 Australian Championship (SA) | 15 | 405 | 372 |
| 04.03.2018 Ross March (TAS) | 7 | 320 | 318 |
| 24.06.2018 Kingston June (TAS) | 3 | 274 | 399 |
| 21.07.2018 Ross July (TAS) | 4 | 354 | 397 |
| 03.02.2019 Ulverstone (TAS) | 1 | 405 | 395 |
| 25.05.2019 Ross Winter (TAS) | 1 | 283 | 418 |
| 09.06.2019 Kingston (TAS) | 10 | 390 | 367 |
| 02.02.2020 ulverstone (TAS) | 8 | 312 | 421 |
| Head-to-head after 14 games | 7 | 7 | |
| Average score | 347.28 | 377.5 | |
| Spread: | -423 | 423 | |