| Date | Tournament | State | Round | Bettina Tonkin | Anne Stewart |
|---|---|---|---|---|---|
| 16/02/1997 | Fremantle | WA | 6 | 335 | 384 |
| 09/03/1997 | Advanced Intermediate Recreation | WA | 3 | 361 | 386 |
| 14/02/1999 | Fremantle | WA | 2 | 356 | 430 |
| 11/07/1999 | Western Australian Masters | WA | 18 | 389 | 387 |
| 13/08/2000 | Western Australian Masters | WA | 10 | 378 | 378 |
| 27/05/2001 | Melville | WA | 6 | 320 | 395 |
| 08/07/2001 | Bassendean | WA | 5 | 363 | 389 |
| 02/09/2001 | Western Australian Masters | WA | 12 | 359 | 427 |
| 10/08/2002 | Western Australian Masters | WA | 18 | 410 | 409 |
| 12/01/2003 | Open | WA | 4 | 320 | 379 |
| 22/10/2006 | Rockingham | WA | 1 | 367 | 462 |
| 19/11/2006 | Coogee | WA | 4 | 403 | 429 |
| 21/01/2007 | January Maximin | WA | 5 | 363 | 441 |
| 09/11/2008 | COOGEE 2008 | WA | 7 | 301 | 381 |
| 14/03/2010 | BUNBURY 2010 | WA | 1 | 376 | 397 |
| 10/02/2013 | Fremantle | WA | 7 | 364 | 376 |
| 25/08/2013 | Rockingham | WA | 4 | 387 | 406 |
| 03/11/2013 | COOGEE | WA | 7 | 405 | 392 |
| 07/12/2014 | Dec OPEN | WA | 5 | 352 | 412 |
| 05/07/2015 | AGM Bisection | WA | 3 | 323 | 459 |
| 15/05/2016 | Melville | WA | 7 | 374 | 416 |
| 05/02/2017 | FEB17OP1 | WA | 7 | 360 | 424 |
| 29/10/2017 | November Open | WA | 3 | 370 | 330 |
| 17/02/2019 | Feb Open | WA | 5 | 318 | 443 |
| 18/08/2019 | AUGTRIS | WA | 1 | 353 | 355 |
| 16/05/2021 | MELV2021 | WA | 1 | 294 | 508 |
| 22/01/2023 | January Open | WA | 1 | 332 | 382 |
| 09/07/2023 | AGM BISECTION | WA | 1 | 370 | 280 |
| 10/12/2023 | Graham Bell Memorial | WA | 6 | 345 | 333 |
| 05/05/2024 | Melville May | WA | 1 | 314 | 445 |
| 01/06/2025 | WA Championship 2025 | WA | 10 | 379 | 383 |
| 07/12/2025 | Graham Bell Memorial | WA | 4 | 342 | 380 |
| Head-to-head after 32 games | 6.5 | 25.5 | |||
| Average score | 355.72 | 399.94 | |||
| Spread | -1415 | 1415 | |||