| Tournament | Round | Chris Ostrowski | Vinh Nguyen |
| 05.01.2021 oitoo by lake 05012021 (NSW) | 2 | 454 | 285 |
| 13.04.2021 OITOO East Hills (NSW) | 1 | 369 | 298 |
| 21.12.2021 OITOO by river (NSW) | 1 | 456 | 301 |
| 11.04.2022 OITOO IN SHIRE APRIL (NSW) | 3 | 367 | 293 |
| 26.11.2023 Central Coast Open (NSW) | 5 | 407 | 344 |
| 19.10.2024 Spring Marathon (NSW) | 2 | 364 | 404 |
| 26.01.2025 CITY OF SYDNEY MASTERS (NSW) | 13 | 481 | 298 |
| 26.01.2025 CITY OF SYDNEY MASTERS (NSW) | 16 | 370 | 342 |
| Head-to-head after 8 games | 7 | 1 | |
| Average score | 408.5 | 320.62 | |
| Spread: | 703 | -703 | |