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