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