| Tournament | Round | Ethel Collins | Sam Greenberg |
| 01.03.1998 Balmain (NSW) | 3 | 289 | 339 |
| 04.04.1998 Hassall Grove (NSW) | 4 | 339 | 332 |
| 21.01.1999 City of Sydney Masters (NSW) | 13 | 381 | 262 |
| 14.11.1999 Sydney (NSW) | 4 | 357 | 397 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 341.5 | 332.5 | |
| Spread: | 36 | -36 | |