| Date | Tournament | State | Round | Cheah Siu Hean | Chris May |
|---|---|---|---|---|---|
| 21/04/2003 | Australian Championships | SA | 11 | 477 | 337 |
| 28/03/2005 | Australian Championships | TAS | 8 | 528 | 412 |
| 29/11/2006 | Warm-up Beta | NSW | 9 | 329 | 543 |
| 09/04/2007 | Australian Championships | NSW | 14 | 478 | 387 |
| 24/03/2008 | Australian Championship | VIC | 11 | 540 | 292 |
| 24/03/2008 | Australian Championship | VIC | 14 | 418 | 467 |
| 25/04/2011 | Aus Championship | ACT | 18 | 338 | 408 |
| 09/04/2012 | Australian Championship | TAS | 4 | 466 | 450 |
| 09/04/2012 | Australian Championship | TAS | 20 | 416 | 416 |
| 01/04/2013 | Australian Championship | QLD | 11 | 452 | 425 |
| 21/04/2014 | Australian Championship | NSW | 18 | 504 | 330 |
| Head-to-head after 11 games | 7.5 | 3.5 | |||
| Average score | 449.64 | 406.09 | |||
| Spread | 479 | -479 | |||