| Tournament | Round | Ros Gibbons | Joan Rosenthal |
| 04.04.1998 Hassall Grove (NSW) | 2 | 245 | 488 |
| 30.01.2000 City of Sydney International Masters (NSW) | 6 | 351 | 460 |
| 18.11.2000 Sydney (NSW) | 6 | 431 | 324 |
| 27.01.2001 City of Sydney International Masters (NSW) | 9 | 282 | 418 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 327.25 | 422.5 | |
| Spread: | -381 | 381 | |