| Date | Tournament | State | Round | George Khamis | Chris Ostrowski |
|---|---|---|---|---|---|
| 09/04/2007 | Australian Championships | NSW | 10 | 381 | 294 |
| 04/10/2008 | NSW CHAMPIONSHIPS 08 | NSW | 7 | 277 | 356 |
| 04/10/2008 | NSW CHAMPIONSHIPS 08 | NSW | 23 | 298 | 380 |
| 14/02/2009 | wordsfeb09 | NSW | 4 | 394 | 380 |
| 04/04/2009 | Blacktown | NSW | 4 | 353 | 346 |
| 13/06/2009 | Wollongong Winter | NSW | 5 | 395 | 342 |
| 30/05/2010 | Revesby | NSW | 7 | 313 | 394 |
| 04/07/2010 | Winter Challenge | NSW | 12 | 282 | 498 |
| 30/01/2011 | City of Sydney International Masters | NSW | 13 | 277 | 442 |
| 28/05/2011 | REVESBY | NSW | 6 | 306 | 444 |
| 27/01/2014 | City of Sydney International Masters | NSW | 7 | 443 | 336 |
| 27/01/2014 | City of Sydney International Masters | NSW | 17 | 372 | 387 |
| 05/10/2015 | NSW Championships | NSW | 4 | 378 | 407 |
| 31/01/2016 | CSIM 2016 | NSW | 3 | 328 | 443 |
| 31/01/2016 | CSIM 2016 | NSW | 15 | 398 | 405 |
| 21/08/2016 | Hills Open | NSW | 6 | 347 | 492 |
| 29/01/2017 | City of Sydney International Masters | NSW | 1 | 300 | 441 |
| 02/10/2017 | NSW CHAMPS | NSW | 10 | 511 | 339 |
| 09/12/2017 | BUNDANOON | NSW | 6 | 295 | 499 |
| 28/01/2018 | City of Sydney International Masters | NSW | 11 | 391 | 391 |
| 14/04/2018 | Beecroft Marathon | NSW | 13 | 341 | 435 |
| 21/09/2019 | Beecroft Marathon | NSW | 8 | 306 | 482 |
| 27/10/2019 | Empire Bay Oct | NSW | 3 | 430 | 407 |
| 27/10/2019 | Empire Bay Oct | NSW | 3 | 430 | 407 |
| 23/05/2021 | EmpireBayMay | NSW | 5 | 323 | 389 |
| Head-to-head after 25 games | 8.5 | 16.5 | |||
| Average score | 354.76 | 405.44 | |||
| Spread | -1267 | 1267 | |||