| Date | Tournament | State | Round | Zina Costanzo | Ian Close |
|---|---|---|---|---|---|
| 31/03/1997 | Australian Scrabble Championship | SA | 3 | 341 | 336 |
| 15/04/1998 | Australian Championships | TAS | 1 | 353 | 411 |
| 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 7 games | 3 | 4 | |||
| Average score | 372.57 | 382.43 | |||
| Spread | -69 | 69 | |||