| Date | Tournament | State | Round | Chris Ostrowski | Tony Williams |
|---|---|---|---|---|---|
| 03/01/2009 | Janboree | NSW | 6 | 328 | 392 |
| 04/11/2012 | Nowra | NSW | 5 | 384 | 318 |
| 04/11/2012 | Nowra | NSW | 14 | 362 | 431 |
| 21/07/2013 | Winter Masters | NSW | 11 | 394 | 274 |
| 10/11/2013 | ACT CHAMPIONSHIPS | ACT | 10 | 329 | 417 |
| 08/02/2014 | WORDS FEB | NSW | 1 | 348 | 407 |
| 18/05/2014 | Ulladulla | NSW | 2 | 350 | 401 |
| 26/01/2015 | City of Sydney International Masters | NSW | 5 | 430 | 346 |
| 14/03/2015 | Bomaderry | NSW | 2 | 507 | 430 |
| 06/11/2016 | Nowra 10th Annual | NSW | 7 | 422 | 244 |
| 06/11/2016 | Nowra 10th Annual | NSW | 11 | 372 | 381 |
| 11/03/2017 | Bomaderry | NSW | 7 | 454 | 310 |
| 11/03/2017 | Bomaderry | NSW | 8 | 428 | 439 |
| 21/05/2017 | ULLADULLA | NSW | 3 | 507 | 377 |
| 17/06/2017 | WORDS WINTER | NSW | 3 | 408 | 355 |
| 04/11/2017 | NOWRA | NSW | 1 | 404 | 460 |
| 04/11/2017 | NOWRA | NSW | 11 | 453 | 335 |
| 10/02/2018 | WORDS Summer RR | NSW | 3 | 435 | 399 |
| 16/06/2018 | JUNE WGONG | NSW | 2 | 430 | 391 |
| 28/01/2019 | City Of Sydney International Masters | NSW | 7 | 374 | 369 |
| 15/01/2022 | bundanoon | NSW | 4 | 355 | 418 |
| 03/12/2022 | SUTHERLAND CLUB | NSW | 8 | 367 | 404 |
| 04/04/2026 | AUS CHAMPS | ACT | 5 | 311 | 342 |
| Head-to-head after 23 games | 12 | 11 | |||
| Average score | 397.91 | 375.65 | |||
| Spread | 512 | -512 | |||