| Tournament | Round | Diane Stoyan | Norma Engel |
| 17.10.1999 Frankston (VIC) | 6 | 305 | 418 |
| 21.05.2000 Dandenong (VIC) | 5 | 405 | 363 |
| 19.11.2000 Geelong (VIC) | 3 | 437 | 299 |
| 25.03.2001 Langwarrin (VIC) | 2 | 407 | 315 |
| 26.08.2001 Eastern Suburbs (VIC) | 2 | 444 | 307 |
| 30.12.2012 Decathon (VIC) | 6 | 379 | 379 |
| Head-to-head after 6 games | 4.5 | 1.5 | |
| Average score | 396.16 | 346.83 | |
| Spread: | 296 | -296 | |