| Tournament | Round | Gloria Gallagher | Olga Visser |
| 05.04.1999 Australian Championships (NSW) | 17 | 389 | 361 |
| 30.01.2000 City of Sydney International Masters (NSW) | 4 | 431 | 353 |
| 27.01.2001 City of Sydney International Masters (NSW) | 12 | 396 | 358 |
| 22.07.2001 Winter Masters (NSW) | 9 | 468 | 396 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 421 | 367 | |
| Spread: | 216 | -216 | |