| Tournament | Round | Trevor Halsall | Ivor Zetler |
| 25.01.1998 City of Sydney International Masters (NSW) | 6 | 455 | 396 |
| 01.03.1998 Balmain (NSW) | 1 | 335 | 454 |
| 21.01.1999 City of Sydney Masters (NSW) | 2 | 396 | 249 |
| 21.01.1999 City of Sydney Masters (NSW) | 18 | 336 | 357 |
| 07.03.1999 Balmain (NSW) | 5 | 485 | 311 |
| 30.01.2000 City of Sydney International Masters (NSW) | 6 | 389 | 284 |
| 27.01.2003 City of Sydney International Masters (NSW) | 17 | 379 | 380 |
| 25.01.2004 City of Sydney International Masters (NSW) | 19 | 492 | 306 |
| 25.01.2009 City of Sydney International Masters (NSW) | 5 | 565 | 330 |
| 30.01.2011 City of Sydney International Masters (NSW) | 7 | 547 | 282 |
| 30.01.2011 City of Sydney International Masters (NSW) | 19 | 392 | 398 |
| 22.04.2019 2019 Australian Championship (TAS) | 18 | 519 | 322 |
| Head-to-head after 12 games | 8 | 4 | |
| Average score | 440.83 | 339.08 | |
| Spread: | 1221 | -1221 | |