| Tournament | Round | Tony Williams | Chris Ostrowski |
| 03.01.2009 Janboree (NSW) | 6 | 392 | 328 |
| 04.11.2012 Nowra (NSW) | 5 | 318 | 384 |
| 04.11.2012 Nowra (NSW) | 14 | 431 | 362 |
| 21.07.2013 Winter Masters (NSW) | 11 | 274 | 394 |
| 10.11.2013 ACT CHAMPIONSHIPS (ACT) | 10 | 417 | 329 |
| 08.02.2014 WORDS FEB (NSW) | 1 | 407 | 348 |
| 18.05.2014 Ulladulla (NSW) | 2 | 401 | 350 |
| 26.01.2015 City of Sydney International Masters (NSW) | 5 | 346 | 430 |
| 14.03.2015 Bomaderry (NSW) | 2 | 430 | 507 |
| 06.11.2016 Nowra 10th Annual (NSW) | 7 | 244 | 422 |
| 06.11.2016 Nowra 10th Annual (NSW) | 11 | 381 | 372 |
| 11.03.2017 Bomaderry (NSW) | 7 | 310 | 454 |
| 11.03.2017 Bomaderry (NSW) | 8 | 439 | 428 |
| 21.05.2017 ULLADULLA (NSW) | 3 | 377 | 507 |
| 17.06.2017 WORDS WINTER (NSW) | 3 | 355 | 408 |
| 04.11.2017 NOWRA (NSW) | 1 | 460 | 404 |
| 04.11.2017 NOWRA (NSW) | 11 | 335 | 453 |
| 10.02.2018 WORDS Summer RR (NSW) | 3 | 399 | 435 |
| 16.06.2018 JUNE WGONG (NSW) | 2 | 391 | 430 |
| 28.01.2019 City Of Sydney International Masters (NSW) | 7 | 369 | 374 |
| 15.01.2022 bundanoon (NSW) | 4 | 418 | 355 |
| 03.12.2022 SUTHERLAND CLUB (NSW) | 8 | 404 | 367 |
| 04.04.2026 AUS CHAMPS (ACT) | 5 | 342 | 311 |
| Head-to-head after 23 games | 11 | 12 | |
| Average score | 375.65 | 397.91 | |
| Spread: | -512 | 512 | |