| Tournament | Round | Chris Ostrowski | Krystyna Batten |
| 01.09.2007 Oatlands (NSW) | 5 | 411 | 380 |
| 02.03.2008 Balmain BUGS (NSW) | 1 | 415 | 308 |
| 06.07.2008 Winter Challenge (NSW) | 14 | 395 | 392 |
| 03.01.2009 Janboree (NSW) | 4 | 367 | 278 |
| 01.03.2009 Balmain BUGS (NSW) | 1 | 345 | 342 |
| 05.07.2009 Winter Challenge (NSW) | 6 | 419 | 325 |
| 20.04.2013 Spot Surprize (NSW) | 1 | 488 | 311 |
| 18.08.2013 Baulkham Hills Open (NSW) | 4 | 417 | 284 |
| 14.12.2013 Spot Prize December (NSW) | 6 | 316 | 312 |
| 18.10.2015 Spring Marathon (NSW) | 7 | 346 | 277 |
| 16.10.2016 Spring Marathon (NSW) | 1 | 292 | 240 |
| 16.10.2016 Spring Marathon (NSW) | 6 | 396 | 361 |
| 26.01.2018 Australia Day Open (NSW) | 1 | 486 | 327 |
| 17.03.2018 Newtown Club (NSW) | 7 | 369 | 362 |
| 26.01.2019 AUSTRALIA DAY OPEN (NSW) | 1 | 337 | 360 |
| 29.08.2020 HOME CHALLENGE FINAL (NSW) | 1 | 396 | 296 |
| 23.01.2021 CSIM (NSW) | 3 | 555 | 285 |
| 23.01.2021 CSIM (NSW) | 17 | 360 | 415 |
| 22.07.2023 WYC Fundraiser July (NSW) | 7 | 426 | 278 |
| 19.10.2024 Spring Marathon (NSW) | 5 | 415 | 251 |
| 18.10.2025 SPRING MARATHON (NSW) | 5 | 408 | 321 |
| Head-to-head after 21 games | 19 | 2 | |
| Average score | 398.04 | 319.28 | |
| Spread: | 1654 | -1654 | |