| Tournament | Round | Trevor Halsall | Jan Serisier |
| 25.01.1998 City of Sydney International Masters (NSW) | 4 | 354 | 363 |
| 13.02.1999 Wollongong (NSW) | 1 | 456 | 289 |
| 30.01.2000 City of Sydney International Masters (NSW) | 1 | 420 | 387 |
| 01.10.2001 New South Wales Championships (NSW) | 16 | 418 | 334 |
| 24.11.2002 ACT Championships (ACT) | 7 | 430 | 402 |
| 04.05.2003 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 7 | 441 | 364 |
| 25.01.2004 City of Sydney International Masters (NSW) | 5 | 373 | 421 |
| 02.05.2004 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 10 | 434 | 385 |
| 04.10.2004 New South Wales Championships (NSW) | 9 | 429 | 412 |
| 17.04.2005 NSW/Victoria Border Challenge, Wagga Wagga (NSW) | 4 | 327 | 304 |
| 30.07.2006 Winter Masters (NSW) | 6 | 474 | 333 |
| 25.01.2009 City of Sydney International Masters (NSW) | 1 | 425 | 297 |
| 01.04.2013 Australian Championship (QLD) | 8 | 442 | 406 |
| Head-to-head after 13 games | 11 | 2 | |
| Average score | 417.15 | 361.3 | |
| Spread: | 726 | -726 | |