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