| Tournament | Round | Alastair Richards | Cheah Siu Hean |
| 28.11.2006 Warm-up Alpha (NSW) | 8 | 326 | 419 |
| 24.03.2008 Australian Championship (VIC) | 7 | 411 | 404 |
| 24.03.2008 Australian Championship (VIC) | 23 | 538 | 322 |
| 05.04.2010 Aus Championship (SA) | 5 | 447 | 410 |
| 05.04.2010 Aus Championship (SA) | 16 | 480 | 301 |
| 09.04.2012 Australian Championship (TAS) | 3 | 343 | 466 |
| 09.04.2012 Australian Championship (TAS) | 16 | 441 | 463 |
| 01.04.2013 Australian Championship (QLD) | 20 | 475 | 384 |
| 06.04.2015 Australian Championship (VIC) | 5 | 428 | 472 |
| 06.04.2015 Australian Championship (VIC) | 14 | 480 | 442 |
| Head-to-head after 10 games | 6 | 4 | |
| Average score | 436.9 | 408.3 | |
| Spread: | 286 | -286 | |