| Tournament | Round | Esther Perrins | Chris Ostrowski |
| 17.03.2012 Matchplay (NSW) | 2 | 450 | 306 |
| 22.07.2012 Winter Masters (NSW) | 6 | 492 | 330 |
| 07.10.2013 NSW Champs (NSW) | 3 | 543 | 321 |
| 07.10.2013 NSW Champs (NSW) | 15 | 376 | 365 |
| 06.10.2014 NSW Championships (NSW) | 4 | 414 | 422 |
| 07.02.2015 Matchplay qualifier (NSW) | 3 | 499 | 284 |
| 23.05.2015 Fundraiser (NSW) | 1 | 365 | 335 |
| 26.07.2015 Winter Masters (NSW) | 1 | 385 | 382 |
| 03.10.2016 NSW Championships (NSW) | 20 | 389 | 360 |
| 29.01.2017 City of Sydney International Masters (NSW) | 2 | 416 | 333 |
| 02.10.2017 NSW CHAMPS (NSW) | 9 | 458 | 314 |
| 28.01.2018 City of Sydney International Masters (NSW) | 1 | 384 | 393 |
| 03.10.2020 NSW CHAMPS 2020 (NSW) | 8 | 419 | 377 |
| 23.01.2021 CSIM (NSW) | 1 | 428 | 354 |
| 30.01.2022 City of Sydney Masters (NSW) | 1 | 460 | 244 |
| 26.02.2023 MATCHPLAY QUALIFIER 23 (NSW) | 8 | 454 | 278 |
| 16.07.2023 2023 Winter Masters (NSW) | 2 | 436 | 367 |
| Head-to-head after 17 games | 15 | 2 | |
| Average score | 433.41 | 339.11 | |
| Spread: | 1603 | -1603 | |