| Tournament | Round | Bettina Tonkin | Marvi Delfin |
| 23.01.2011 Summer Maximin (WA) | 6 | 377 | 342 |
| 01.05.2011 MELVILLE MAY (WA) | 2 | 351 | 385 |
| 23.10.2011 Coogee 2011 (WA) | 4 | 245 | 526 |
| 11.12.2011 DEC OPEN (WA) | 6 | 326 | 337 |
| 05.02.2012 FREMANTLE (WA) | 3 | 440 | 394 |
| 22.04.2012 ANZAC MAXIMIN (WA) | 5 | 359 | 406 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 349.66 | 398.33 | |
| Spread: | -292 | 292 | |