| Tournament | Round | Betty Ralph | Donna Sekkouah |
| 26.04.1998 Nedlands (WA) | 1 | 359 | 299 |
| 02.08.1998 Bassendean (WA) | 6 | 329 | 304 |
| 30.08.1998 Yokine (WA) | 4 | 279 | 325 |
| 18.10.1998 Rockingham (WA) | 2 | 258 | 341 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 306.25 | 317.25 | |
| Spread: | -44 | 44 | |