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