| Tournament | Round | Joan Rosenthal | Peter Tobler |
| 11.01.1998 Baulkham Hills (NSW) | 7 | 395 | 379 |
| 25.01.1998 City of Sydney International Masters (NSW) | 13 | 301 | 385 |
| 01.08.1999 Winter Masters (NSW) | 9 | 387 | 336 |
| Head-to-head after 3 games | 2 | 1 | |
| Average score | 361 | 366.66 | |
| Spread: | -17 | 17 | |