| Tournament | Round | Sal Costanzo | Chris May |
| 27.01.2001 City of Sydney International Masters (NSW) | 14 | 397 | 305 |
| 07.10.2002 New South Wales Championships (NSW) | 16 | 357 | 515 |
| 02.05.2004 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 1 | 326 | 403 |
| 18.09.2005 Australian Masters & State Challenge Trophy (VIC) | 14 | 290 | 498 |
| 10.06.2006 vic06 3 DAY (VIC) | 9 | 341 | 456 |
| 10.06.2006 vic06 3 DAY (VIC) | 19 | 405 | 447 |
| 06.01.2007 Marathon (VIC) | 15 | 279 | 484 |
| 06.01.2007 Marathon (VIC) | 20 | 418 | 388 |
| Head-to-head after 8 games | 2 | 6 | |
| Average score | 351.62 | 437 | |
| Spread: | -683 | 683 | |