| Date | Tournament | State | Round | Cheah Siu Hean | Karen Richards |
|---|---|---|---|---|---|
| 05/04/1999 | Australian Championships | NSW | 17 | 400 | 365 |
| 24/03/2002 | WA Marathon | WA | 2 | 503 | 348 |
| 24/03/2002 | WA Marathon | WA | 8 | 479 | 305 |
| 01/04/2002 | Australian Championships | WA | 5 | 466 | 371 |
| 12/04/2004 | Australian Championships | ACT | 13 | 529 | 297 |
| 09/04/2007 | Australian Championships | NSW | 5 | 447 | 296 |
| 25/04/2011 | Aus Championship | ACT | 10 | 528 | 326 |
| Head-to-head after 7 games | 7 | 0 | |||
| Average score | 478.86 | 329.71 | |||
| Spread | 1044 | -1044 | |||