| Tournament | Round | Ethel Collins | Rene Chelton |
| 25.01.1998 City of Sydney International Masters (NSW) | 2 | 457 | 327 |
| 05.04.1999 Australian Championships (NSW) | 5 | 463 | 335 |
| 14.08.1999 Revesby (NSW) | 6 | 305 | 345 |
| Head-to-head after 3 games | 2 | 1 | |
| Average score | 408.33 | 335.66 | |
| Spread: | 218 | -218 | |