| Tournament | Round | Sal Costanzo | John Barker |
| 05.07.1998 High Country (VIC) | 6 | 406 | 300 |
| 05.10.1998 New South Wales Championships (NSW) | 10 | 383 | 441 |
| 21.01.1999 City of Sydney Masters (NSW) | 3 | 420 | 453 |
| 21.01.1999 City of Sydney Masters (NSW) | 17 | 308 | 526 |
| 14.06.1999 Victorian Championships (VIC) | 13 | 354 | 482 |
| 07.05.2000 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 4 | 502 | 321 |
| 06.05.2001 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 6 | 350 | 300 |
| 09.06.2001 Victorian Championships (VIC) | 19 | 329 | 454 |
| 05.05.2002 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 8 | 359 | 453 |
| 27.01.2003 City of Sydney International Masters (NSW) | 4 | 407 | 472 |
| 04.05.2003 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 5 | 388 | 471 |
| 14.09.2003 Melbourne Masters (VIC) | 10 | 366 | 485 |
| 02.05.2004 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 2 | 341 | 426 |
| 07.06.2008 VIC CHAMPS (VIC) | 12 | 473 | 432 |
| 07.06.2008 VIC CHAMPS (VIC) | 17 | 380 | 431 |
| 13.09.2009 MASTERS AND STATE CHALLENGE TROPHY (NSW) | 5 | 458 | 374 |
| Head-to-head after 16 games | 5 | 11 | |
| Average score | 389 | 426.31 | |
| Spread: | -597 | 597 | |