| Tournament | Round | Esther Perrins | Cheah Siu Hean |
| 05.04.1999 Australian Championships (NSW) | 5 | 431 | 379 |
| 12.04.2004 Australian Championships (ACT) | 14 | 433 | 356 |
| 09.04.2007 Australian Championships (NSW) | 23 | 348 | 494 |
| 11.04.2009 AUST CHAMPIONSHIP (WA) | 11 | 350 | 471 |
| 25.04.2011 Aus Championship (ACT) | 11 | 402 | 398 |
| 09.04.2012 Australian Championship (TAS) | 12 | 468 | 295 |
| 09.04.2012 Australian Championship (TAS) | 18 | 467 | 327 |
| 01.04.2013 Australian Championship (QLD) | 2 | 422 | 400 |
| 01.04.2013 Australian Championship (QLD) | 15 | 449 | 369 |
| 21.04.2014 Australian Championship (NSW) | 19 | 499 | 440 |
| 06.04.2015 Australian Championship (VIC) | 10 | 443 | 354 |
| 06.04.2015 Australian Championship (VIC) | 19 | 428 | 330 |
| 28.03.2016 Australian Championship (SA) | 19 | 483 | 281 |
| Head-to-head after 13 games | 11 | 2 | |
| Average score | 432.53 | 376.46 | |
| Spread: | 729 | -729 | |