| Tournament | Round | Dianne Davis | John Barker |
| 08.06.1998 Victorian Championships (VIC) | 6 | 437 | 424 |
| 07.05.2000 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 8 | 420 | 318 |
| 06.05.2001 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 10 | 300 | 350 |
| 06.05.2001 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 11 | 300 | 350 |
| 09.06.2001 Victorian Championships (VIC) | 5 | 362 | 443 |
| 27.01.2002 City of Sydney International Masters (NSW) | 14 | 480 | 366 |
| 05.05.2002 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 6 | 437 | 288 |
| 27.01.2003 City of Sydney International Masters (NSW) | 3 | 554 | 380 |
| 17.04.2006 Australian Championships (QLD) | 19 | 385 | 403 |
| 10.06.2006 vic06 3 DAY (VIC) | 9 | 398 | 375 |
| 10.06.2006 vic06 3 DAY (VIC) | 19 | 440 | 406 |
| 07.06.2008 VIC CHAMPS (VIC) | 9 | 263 | 415 |
| 07.06.2008 VIC CHAMPS (VIC) | 14 | 324 | 528 |
| 08.06.2009 Vic Championship (VIC) | 3 | 395 | 459 |
| 10.06.2013 VIC CHAMPIONSHIP (VIC) | 4 | 277 | 541 |
| 08.06.2015 Vic Championship (VIC) | 7 | 471 | 393 |
| 26.05.2019 Tri-State (NSW) | 3 | 392 | 363 |
| Head-to-head after 17 games | 9 | 8 | |
| Average score | 390.29 | 400.11 | |
| Spread: | -167 | 167 | |