| Tournament | Round | Judy Hay | Ethel Collins |
| 26.07.1998 Winter Masters (NSW) | 15 | 326 | 283 |
| 26.07.1998 Winter Masters (NSW) | 20 | 359 | 313 |
| 12.12.1998 North Shore (NSW) | 4 | 320 | 343 |
| 14.11.1999 Sydney (NSW) | 5 | 375 | 293 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 345 | 308 | |
| Spread: | 148 | -148 | |