| Tournament | Round | Nan Smith | Sal Costanzo |
| 22.02.1998 Ballarat (VIC) | 4 | 348 | 371 |
| 08.06.1998 Victorian Championships (VIC) | 7 | 479 | 359 |
| 28.12.1998 Decathon (VIC) | 10 | 347 | 421 |
| 14.06.1999 Victorian Championships (VIC) | 4 | 484 | 442 |
| 18.07.1999 Nunawading (VIC) | 5 | 371 | 437 |
| 22.08.1999 Bentleigh (VIC) | 3 | 422 | 389 |
| 23.01.2000 Aestival (VIC) | 7 | 362 | 379 |
| 12.06.2000 Victorian Championships (VIC) | 7 | 398 | 351 |
| 09.06.2001 Victorian Championships (VIC) | 7 | 367 | 363 |
| 28.10.2001 Teams Event (VIC) | 4 | 394 | 342 |
| 13.10.2002 Frankston (VIC) | 1 | 343 | 429 |
| 21.04.2003 Australian Championships (SA) | 12 | 455 | 318 |
| 14.09.2003 Melbourne Masters (VIC) | 3 | 400 | 402 |
| 14.09.2003 Melbourne Masters (VIC) | 18 | 411 | 413 |
| 19.10.2003 Frankston (VIC) | 3 | 344 | 348 |
| 12.04.2004 Australian Championships (ACT) | 8 | 386 | 415 |
| 01.05.2005 Mayday (VIC) | 4 | 576 | 257 |
| 07.05.2006 Matchplay Qualifier (VIC) | 4 | 390 | 448 |
| 24.03.2007ARVOEVO (VIC) | 7 | 279 | 424 |
| 07.04.2007 Not The Nationals (VIC) | 3 | 369 | 469 |
| 22.04.2007 Melbourne Team Challenge (VIC) | 6 | 393 | 448 |
| 02.12.2007 Bentleigh (VIC) | 2 | 387 | 410 |
| Head-to-head after 22 games | 8 | 14 | |
| Average score | 395.68 | 392.5 | |
| Spread: | 70 | -70 | |