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