| Date | Tournament | State | Round | John Barker | Sal Costanzo |
|---|---|---|---|---|---|
| 08/04/1996 | Australian Masters | VIC | 15 | 399 | 425 |
| 08/06/1996 | Victorian Championships | VIC | 18 | 487 | 274 |
| 12/01/1997 | Lasseters Inodoor Challenge (Masters Only) | NT | 8 | 389 | 397 |
| 12/01/1997 | Lasseters Inodoor Challenge (Masters Only) | NT | 21 | 554 | 329 |
| 31/03/1997 | Australian Scrabble Championship | SA | 7 | 475 | 264 |
| 09/06/1997 | Victorian Championships | VIC | 9 | 501 | 383 |
| 06/10/1997 | New South Wales Championships | NSW | 20 | 488 | 275 |
| 05/07/1998 | High Country | VIC | 6 | 300 | 406 |
| 05/10/1998 | New South Wales Championships | NSW | 10 | 441 | 383 |
| 21/01/1999 | City of Sydney Masters | NSW | 3 | 453 | 420 |
| 21/01/1999 | City of Sydney Masters | NSW | 17 | 526 | 308 |
| 14/06/1999 | Victorian Championships | VIC | 13 | 482 | 354 |
| 07/05/2000 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 4 | 321 | 502 |
| 06/05/2001 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 6 | 300 | 350 |
| 09/06/2001 | Victorian Championships | VIC | 19 | 454 | 329 |
| 05/05/2002 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 8 | 453 | 359 |
| 27/01/2003 | City of Sydney International Masters | NSW | 4 | 472 | 407 |
| 04/05/2003 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 5 | 471 | 388 |
| 14/09/2003 | Melbourne Masters | VIC | 10 | 485 | 366 |
| 02/05/2004 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 2 | 426 | 341 |
| 07/06/2008 | VIC CHAMPS | VIC | 12 | 432 | 473 |
| 07/06/2008 | VIC CHAMPS | VIC | 17 | 431 | 380 |
| 13/09/2009 | MASTERS AND STATE CHALLENGE TROPHY | NSW | 5 | 374 | 458 |
| Head-to-head after 23 games | 16 | 7 | |||
| Average score | 439.74 | 372.65 | |||
| Spread | 1543 | -1543 | |||