| Tournament | Round | Ivor Zetler | Harry Malcolm |
| 21.01.1999 City of Sydney Masters (NSW) | 17 | 300 | 391 |
| 25.01.2004 City of Sydney International Masters (NSW) | 7 | 426 | 444 |
| 30.01.2005 City of Sydney International Masters (NSW) | 14 | 289 | 338 |
| Head-to-head after 3 games | 0 | 3 | |
| Average score | 338.33 | 391 | |
| Spread: | -158 | 158 | |