| Tournament | Round | Ivor Zetler | Dianne Davis |
| 26.07.1998 Winter Masters (NSW) | 4 | 388 | 361 |
| 27.01.2002 City of Sydney International Masters (NSW) | 8 | 311 | 345 |
| 04.12.2016 Festive Frolics (VIC) | 5 | 433 | 309 |
| 18.09.2022 MASTERS and STATE CHALLENGE (VIC) | 2 | 317 | 344 |
| 04.04.2026 AUS CHAMPS (ACT) | 4 | 300 | 415 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 349.8 | 354.8 | |
| Spread: | -25 | 25 | |