| Tournament | Round | Cheah Siu Hean | Tony Sim |
| 01.04.2002 Australian Championships (WA) | 10 | 429 | 415 |
| 11.04.2009 AUST CHAMPIONSHIP (WA) | 18 | 418 | 443 |
| 01.11.2015 WYSCA (WA) | 11 | 346 | 426 |
| 01.11.2015 WYSCA (WA) | 16 | 509 | 440 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 425.5 | 431 | |
| Spread: | -22 | 22 | |