| Date | Tournament | State | Round | Trevor Halsall | Cheah Siu Hean |
|---|---|---|---|---|---|
| 01/04/2002 | Australian Championships | WA | 8 | 399 | 406 |
| 21/04/2003 | Australian Championships | SA | 14 | 476 | 480 |
| 12/04/2004 | Australian Championships | ACT | 12 | 351 | 545 |
| 28/03/2005 | Australian Championships | TAS | 10 | 450 | 481 |
| 28/11/2006 | Warm-up Alpha | NSW | 4 | 442 | 419 |
| 29/11/2006 | Warm-up Beta | NSW | 5 | 268 | 527 |
| 24/03/2008 | Australian Championship | VIC | 24 | 467 | 313 |
| 11/04/2009 | AUST CHAMPIONSHIP | WA | 19 | 370 | 520 |
| 25/04/2011 | Aus Championship | ACT | 3 | 438 | 394 |
| 25/04/2011 | Aus Championship | ACT | 23 | 403 | 379 |
| 17/04/2017 | National Championship | WA | 24 | 401 | 344 |
| 02/04/2018 | 2018 National Championship | ACT | 8 | 381 | 471 |
| Head-to-head after 12 games | 5 | 7 | |||
| Average score | 403.83 | 439.92 | |||
| Spread | -433 | 433 | |||