| Date | Tournament | State | Round | Chris Ostrowski | John Hamilton |
|---|---|---|---|---|---|
| 17/03/2007 | Wyong | NSW | 5 | 375 | 271 |
| 09/04/2007 | Australian Championships | NSW | 21 | 346 | 384 |
| 09/09/2007 | Hills Open | NSW | 2 | 378 | 431 |
| 02/11/2008 | Nowra Bomaderry 2008 | NSW | 13 | 400 | 400 |
| 02/11/2008 | Nowra Bomaderry 2008 | NSW | 14 | 354 | 401 |
| 17/07/2011 | Winter Masters | NSW | 13 | 386 | 445 |
| 04/11/2012 | Nowra | NSW | 8 | 404 | 440 |
| 16/02/2013 | Oatlands Free | NSW | 5 | 461 | 430 |
| 23/03/2013 | Bomaderry | NSW | 1 | 364 | 487 |
| 18/08/2013 | Baulkham Hills Open | NSW | 8 | 369 | 414 |
| 10/11/2013 | ACT CHAMPIONSHIPS | ACT | 4 | 350 | 438 |
| 20/07/2014 | Winter Masters | NSW | 10 | 311 | 459 |
| 12/03/2016 | BOMADERRY | NSW | 8 | 411 | 477 |
| 14/10/2017 | Spring Marathon | NSW | 4 | 412 | 420 |
| 12/08/2018 | WYSC Fundraiser | NSW | 7 | 349 | 374 |
| 01/12/2018 | Sutherland Shire | NSW | 6 | 353 | 421 |
| 16/04/2022 | Australian Championship | QLD | 3 | 379 | 383 |
| 07/08/2022 | Revesby | NSW | 1 | 294 | 454 |
| Head-to-head after 18 games | 2.5 | 15.5 | |||
| Average score | 372.00 | 418.28 | |||
| Spread | -833 | 833 | |||