| Tournament | Round | Bettina Tonkin | Robin Andersen |
| 12.07.1998 WA Masters (WA) | 10 | 325 | 431 |
| 14.02.1999 Fremantle (WA) | 1 | 373 | 424 |
| 04.02.2001 Fremantle (WA) | 2 | 332 | 468 |
| 10.08.2002 Western Australian Masters (WA) | 1 | 340 | 551 |
| 31.05.2003 Western Australian Championships (WA) | 5 | 355 | 489 |
| 14.09.2003 Maximin (WA) | 7 | 329 | 465 |
| 08.02.2004 Fremantle (WA) | 3 | 438 | 327 |
| 19.06.2004 Western Australian Championships (WA) | 9 | 344 | 351 |
| 19.06.2004 Western Australian Championships (WA) | 18 | 289 | 338 |
| 11.12.2011 DEC OPEN (WA) | 1 | 314 | 454 |
| 05.03.2012 BINDOON 2012 (WA) | 13 | 343 | 452 |
| 07.12.2014 Dec OPEN (WA) | 3 | 299 | 398 |
| 05.07.2015 AGM Bisection (WA) | 4 | 350 | 372 |
| Head-to-head after 13 games | 1 | 12 | |
| Average score | 340.84 | 424.61 | |
| Spread: | -1089 | 1089 | |