| Date | Tournament | State | Round | Ivor Zetler | Ethel Collins |
|---|---|---|---|---|---|
| 16/01/1993 | Wollongong | NSW | 4 | 435 | 324 |
| 13/02/1993 | St George February | NSW | 4 | 364 | 321 |
| 25/01/1998 | City of Sydney International Masters | NSW | 14 | 375 | 305 |
| 25/01/1998 | City of Sydney International Masters | NSW | 15 | 373 | 332 |
| 25/01/1998 | City of Sydney International Masters | NSW | 16 | 300 | 395 |
| 05/04/1999 | Australian Championships | NSW | 1 | 429 | 355 |
| Head-to-head after 6 games | 5 | 1 | |||
| Average score | 379.33 | 338.67 | |||
| Spread | 244 | -244 | |||