| Tournament | Round | Steve Sunter | Sal Costanzo |
| 16.05.1998 Dandenong (VIC) | 1 | 285 | 382 |
| 28.12.1998 Decathon (VIC) | 13 | 378 | 252 |
| 21.01.1999 City of Sydney Masters (NSW) | 16 | 381 | 403 |
| 21.01.1999 City of Sydney Masters (NSW) | 18 | 590 | 317 |
| 27.01.2001 City of Sydney International Masters (NSW) | 13 | 445 | 422 |
| 16.04.2001 Australian Championships (VIC) | 19 | 312 | 288 |
| 24.03.2002 Langwarrin (VIC) | 2 | 336 | 407 |
| 25.05.2002 Bunny (VIC) | 4 | 339 | 460 |
| 29.09.2002 Essendon (VIC) | 5 | 388 | 420 |
| 27.10.2002 Mooroolbark (VIC) | 2 | 524 | 258 |
| 16.11.2002 Melbourne November (VIC) | 10 | 300 | 100 |
| 29.12.2002 Decathon (VIC) | 1 | 319 | 474 |
| 09.02.2003 Camberwell (VIC) | 6 | 274 | 393 |
| 27.07.2003 Bentleigh (VIC) | 6 | 644 | 248 |
| 16.01.2005 Aestival (VIC) | 5 | 451 | 405 |
| Head-to-head after 15 games | 8 | 7 | |
| Average score | 397.73 | 348.6 | |
| Spread: | 737 | -737 | |