| Date | Tournament | State | Round | John Spaan | Chris Ostrowski |
|---|---|---|---|---|---|
| 24/02/2018 | Bomaderry | NSW | 5 | 425 | 336 |
| 02/04/2018 | 2018 National Championship | ACT | 8 | 433 | 322 |
| 20/05/2018 | Ulladulla | NSW | 12 | 421 | 358 |
| 15/12/2018 | Bundanoon | NSW | 7 | 317 | 353 |
| 14/01/2023 | Bundanoon | NSW | 8 | 380 | 284 |
| 09/12/2023 | Bundanoon 2023 | NSW | 9 | 353 | 275 |
| Head-to-head after 6 games | 5 | 1 | |||
| Average score | 388.17 | 321.33 | |||
| Spread | 401 | -401 | |||