| Tournament | Round | Chris Ostrowski | Arnold Appelhof |
| 31.07.2016 Winter Masters (NSW) | 8 | 393 | 393 |
| 31.07.2016 Winter Masters (NSW) | 11 | 383 | 351 |
| 17.04.2017 National Championship (WA) | 11 | 407 | 316 |
| 17.04.2017 National Championship (WA) | 16 | 364 | 337 |
| 02.04.2018 2018 National Championship (ACT) | 19 | 404 | 342 |
| 01.10.2018 NSW Champs (NSW) | 12 | 434 | 348 |
| 28.01.2019 City Of Sydney International Masters (NSW) | 13 | 353 | 449 |
| 27.01.2020 City of Sydney International Masters (NSW) | 7 | 417 | 320 |
| 27.01.2020 City of Sydney International Masters (NSW) | 17 | 433 | 352 |
| 03.04.2021 OZ CHAMPS (NSW) | 11 | 398 | 315 |
| 03.04.2021 OZ CHAMPS (NSW) | 15 | 340 | 384 |
| 16.04.2022 Australian Championship (QLD) | 7 | 359 | 296 |
| 16.04.2022 Australian Championship (QLD) | 14 | 407 | 370 |
| 02.07.2022 NO FRILLS 3 (NSW) | 7 | 370 | 356 |
| 03.10.2022 2022 NSW CHAMPIONSHIP (NSW) | 20 | 290 | 372 |
| 06.11.2022 Revesby Round Robin (NSW) | 1 | 414 | 371 |
| 28.01.2024 CSIM 2024 (NSW) | 9 | 392 | 351 |
| 26.01.2025 CITY OF SYDNEY MASTERS (NSW) | 3 | 348 | 357 |
| 06.10.2025 NSW CHAMPIONSHIP 2025 (NSW) | 20 | 314 | 424 |
| Head-to-head after 19 games | 13.5 | 5.5 | |
| Average score | 380 | 358.1 | |
| Spread: | 416 | -416 | |