| Tournament | Round | Zina Costanzo | Ian Close |
| 05.10.1998 New South Wales Championships (NSW) | 16 | 428 | 348 |
| 21.01.1999 City of Sydney Masters (NSW) | 6 | 385 | 335 |
| 01.08.1999 Winter Masters (NSW) | 5 | 346 | 440 |
| 27.01.2002 City of Sydney International Masters (NSW) | 6 | 361 | 405 |
| 12.04.2004 Australian Championships (ACT) | 20 | 394 | 402 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 382.8 | 386 | |
| Spread: | -16 | 16 | |