| Date | Tournament | State | 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 | 344.50 | 376.25 | |||
| Spread | -127 | 127 | |||