| Tournament | Round | John Spaan | Daniel Piechnick |
| 23.05.1999 May (SA) | 4 | 402 | 395 |
| 24.10.1999 October (SA) | 4 | 188 | 594 |
| 23.03.2001 South Australian Championships (SA) | 3 | 399 | 401 |
| 17.04.2006 Australian Championships (QLD) | 6 | 398 | 485 |
| 25.04.2011 Aus Championship (ACT) | 23 | 452 | 425 |
| 02.04.2018 2018 National Championship (ACT) | 14 | 487 | 393 |
| 27.12.2018 Christmas Leftovers (SA) | 1 | 355 | 479 |
| 27.12.2022 Xmas Leftovers 22 (SA) | 3 | 330 | 414 |
| 07.09.2024 AUSTRALIAN MASTERS (SA) | 17 | 282 | 543 |
| 19.04.2025 National Championship and Plate (SA) | 7 | 363 | 503 |
| Head-to-head after 10 games | 3 | 7 | |
| Average score | 365.6 | 463.2 | |
| Spread: | -976 | 976 | |