| Tournament | Round | Peter Griffiths | Chris Ostrowski |
| 31.03.2007 Blacktown (NSW) | 8 | 320 | 338 |
| 30.05.2010 Revesby (NSW) | 4 | 368 | 353 |
| 17.07.2010 Winter Masters (NSW) | 2 | 443 | 327 |
| 21.11.2010 Central Coast Championships (NSW) | 6 | 376 | 382 |
| 30.01.2011 City of Sydney International Masters (NSW) | 19 | 456 | 314 |
| 20.08.2011 Oatlands War of the Words (NSW) | 1 | 326 | 324 |
| 29.01.2012 CITY OF SYDNEY MASTERS (NSW) | 16 | 397 | 396 |
| 25.11.2012 CENTRAL COAST C'SHIP 2 DAY (NSW) | 2 | 337 | 424 |
| 09.02.2013 WORDS SUMMER (NSW) | 5 | 428 | 303 |
| 25.05.2013 Revesby (NSW) | 3 | 345 | 347 |
| 10.11.2013 ACT CHAMPIONSHIPS (ACT) | 8 | 388 | 348 |
| 08.02.2014 WORDS FEB (NSW) | 5 | 383 | 303 |
| 25.10.2014 Room to Read Charity (NSW) | 5 | 365 | 311 |
| 11.09.2016 Revesby Tournament (NSW) | 4 | 336 | 362 |
| 06.05.2023 BURWOOD NO FRILLS (NSW) | 7 | 312 | 397 |
| 20.07.2024 WINTER MASTERS (NSW) | 13 | 314 | 361 |
| 04.01.2025 JanBoree (NSW) | 9 | 404 | 377 |
| 10.01.2026 JANBOREE (NSW) | 1 | 317 | 366 |
| Head-to-head after 18 games | 10 | 8 | |
| Average score | 367.5 | 351.83 | |