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