| Tournament | Round | Ruby Kotwall | Betty Foreman |
| 26.07.1998 Winter Masters (NSW) | 8 | 271 | 419 |
| 11.09.1999 St George (NSW) | 6 | 337 | 417 |
| 04.10.1999 New South Wales Championships (NSW) | 14 | 417 | 442 |
| 04.10.1999 New South Wales Championships (NSW) | 21 | 425 | 335 |
| 11.04.2002 Sutherland (NSW) | 6 | 333 | 399 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 356.6 | 402.4 | |
| Spread: | -229 | 229 | |