| Tournament | Round | Jeffery Lam | Chris Ostrowski |
| 03.10.2020 NSW CHAMPS 2020 (NSW) | 2 | 408 | 413 |
| 03.10.2020 NSW CHAMPS 2020 (NSW) | 11 | 275 | 427 |
| 03.10.2022 2022 NSW CHAMPIONSHIP (NSW) | 2 | 329 | 354 |
| 29.01.2023 CSIM2023 (NSW) | 14 | 366 | 311 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 344.5 | 376.25 | |
| Spread: | -127 | 127 | |