| Tournament | Round | Mary Morgan | Sue Gergelifi |
| 28.01.2007 City of Sydney International Masters (NSW) | 13 | 274 | 468 |
| 23.01.2010 CITY OF SYDNEY (NSW) | 13 | 402 | 313 |
| 11.12.2011 SYDNEY CLUB (NSW) | 1 | 365 | 400 |
| 28.01.2013 CITY OF SYDNEY MASTERS (NSW) | 21 | 293 | 398 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 333.5 | 394.75 | |
| Spread: | -245 | 245 | |