| Tournament | Round | Bettina Tonkin | Chris Dyson |
| 28.06.2009 WA BISECTION 2009 (WA) | 5 | 389 | 336 |
| 30.08.2009 Winter Open (WA) | 2 | 450 | 310 |
| 12.12.2010 WA December Open (WA) | 3 | 389 | 315 |
| 16.09.2012 BASSENDEAN (WA) | 7 | 390 | 298 |
| 18.11.2012 MARATHON (WA) | 1 | 337 | 304 |
| 18.11.2012 MARATHON (WA) | 8 | 435 | 318 |
| 06.04.2014 April YOOF (WA) | 4 | 414 | 302 |
| 27.04.2014 April OPEN (WA) | 4 | 391 | 395 |
| 02.06.2014 WA Championship (WA) | 3 | 424 | 263 |
| 02.06.2014 WA Championship (WA) | 17 | 415 | 355 |
| 06.07.2014 JULY OPEN (WA) | 7 | 354 | 333 |
| 27.07.2014 BASSENDEAN (WA) | 6 | 417 | 294 |
| 22.03.2015 MARCH OPEN (WA) | 4 | 415 | 298 |
| 13.03.2016 1303OPEN (WA) | 6 | 327 | 386 |
| 17.04.2016 YOOF0416 (WA) | 7 | 373 | 342 |
| 21.08.2016 COOGEE (WA) | 6 | 364 | 344 |
| 18.09.2016 Yoof September (WA) | 4 | 335 | 309 |
| 15.05.2022 Melville 2022 (WA) | 2 | 309 | 354 |
| 26.06.2022 Bassendean (WA) | 4 | 372 | 355 |
| 22.01.2023 January Open (WA) | 4 | 423 | 324 |
| Head-to-head after 20 games | 17 | 3 | |
| Average score | 386.15 | 326.75 | |
| Spread: | 1188 | -1188 | |