| Date | Tournament | State | Round | Arlene Williams | Chris Ostrowski |
|---|---|---|---|---|---|
| 27/01/2014 | City of Sydney International Masters | NSW | 13 | 370 | 399 |
| 27/01/2014 | City of Sydney International Masters | NSW | 21 | 378 | 456 |
| 26/01/2015 | City of Sydney International Masters | NSW | 20 | 357 | 363 |
| 29/01/2017 | City of Sydney International Masters | NSW | 10 | 342 | 493 |
| 04/11/2017 | NOWRA | NSW | 6 | 313 | 444 |
| 07/10/2019 | NSW CHAMPIONSHIP | NSW | 10 | 395 | 361 |
| 07/10/2019 | NSW CHAMPIONSHIP | NSW | 18 | 307 | 401 |
| 29/01/2023 | CSIM2023 | NSW | 3 | 351 | 382 |
| Head-to-head after 8 games | 1 | 7 | |||
| Average score | 351.62 | 412.38 | |||
| Spread | -486 | 486 | |||