| Tournament | Round | Judy Hay | Ivor Zetler |
| 25.01.1998 City of Sydney International Masters (NSW) | 1 | 441 | 417 |
| 30.01.2000 City of Sydney International Masters (NSW) | 5 | 327 | 386 |
| 21.10.2000 Spring Marathon (NSW) | 4 | 344 | 359 |
| 04.03.2001 Balmain BUGS (NSW) | 6 | 266 | 410 |
| 27.01.2002 City of Sydney International Masters (NSW) | 20 | 332 | 361 |
| 20.07.2003 Winter Masters (NSW) | 1 | 236 | 472 |
| 25.01.2004 City of Sydney International Masters (NSW) | 13 | 324 | 407 |
| 26.04.2009 Matchplay Qualifier (NSW) | 1 | 363 | 468 |
| Head-to-head after 8 games | 1 | 7 | |
| Average score | 329.12 | 410 | |
| Spread: | -647 | 647 | |