| Tournament | Round | Ethel Collins | Ian Close |
| 25.01.1998 City of Sydney International Masters (NSW) | 12 | 332 | 441 |
| 17.01.1999 Baulkham Hills (NSW) | 2 | 388 | 302 |
| 21.01.1999 City of Sydney Masters (NSW) | 11 | 360 | 369 |
| 05.04.1999 Australian Championships (NSW) | 13 | 420 | 406 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 375 | 379.5 | |
| Spread: | -18 | 18 | |