| Tournament | Round | Trudi Owens | Anne Zion |
| 19.03.2000 Bunbury (WA) | 2 | 348 | 346 |
| 06.04.2003 Nedlands (WA) | 7 | 460 | 422 |
| 31.05.2003 Western Australian Championships (WA) | 15 | 418 | 317 |
| 13.07.2003 Bassendean (WA) | 4 | 370 | 421 |
| 28.09.2003 Manjimup (WA) | 5 | 388 | 329 |
| 19.10.2003 Rockingham (WA) | 3 | 386 | 332 |
| 14.02.2010 Fremantle 2010 (WA) | 4 | 328 | 282 |
| 07.06.2010 WA CHAMPIONSHIP 2010 (WA) | 7 | 418 | 405 |
| 25.07.2010 BASSENDEAN 2010 (WA) | 2 | 343 | 415 |
| 10.10.2010 SPRING MAXIMIN (WA) | 5 | 456 | 329 |
| 12.12.2010 WA December Open (WA) | 2 | 418 | 337 |
| 07.03.2011 Bindoon 2011 (WA) | 7 | 324 | 416 |
| Head-to-head after 12 games | 9 | 3 | |
| Average score | 388.08 | 362.58 | |
| Spread: | 306 | -306 | |