| Tournament | Round | Graeme Lock Lee | Zina Costanzo |
| 05.10.1998 New South Wales Championships (NSW) | 20 | 436 | 344 |
| 05.04.1999 Australian Championships (NSW) | 3 | 384 | 408 |
| 30.01.2000 City of Sydney International Masters (NSW) | 11 | 424 | 331 |
| 07.05.2000 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 8 | 414 | 274 |
| 05.05.2002 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 2 | 469 | 231 |
| 08.09.2002 Beecroft Marathon (NSW) | 1 | 354 | 312 |
| 07.10.2002 New South Wales Championships (NSW) | 5 | 361 | 392 |
| 07.10.2002 New South Wales Championships (NSW) | 21 | 312 | 502 |
| 12.04.2004 Australian Championships (ACT) | 7 | 336 | 318 |
| 14.06.2004 Victorian Championships (VIC) | 17 | 448 | 371 |
| Head-to-head after 10 games | 7 | 3 | |
| Average score | 393.8 | 348.3 | |
| Spread: | 455 | -455 | |