| Tournament | Round | Cheah Siu Hean | Sandra Morgan |
| 13.08.2000 Western Australian Masters (WA) | 10 | 509 | 344 |
| 02.09.2001 Western Australian Masters (WA) | 10 | 388 | 316 |
| 21.04.2003 Australian Championships (SA) | 3 | 455 | 370 |
| Head-to-head after 3 games | 3 | 0 | |
| Average score | 450.66 | 343.33 | |
| Spread: | 322 | -322 | |