| Date | Tournament | State | Round | Daniel Piechnick | Bob Jackman |
|---|---|---|---|---|---|
| 17/04/1995 | Australian Open Double Dictionary Championship | QLD | 7 | 454 | 369 |
| 31/03/1997 | Australian Scrabble Championship | SA | 9 | 371 | 344 |
| 05/04/1999 | Australian Championships | NSW | 7 | 291 | 428 |
| 01/08/1999 | Winter Masters | NSW | 10 | 324 | 496 |
| 22/04/2000 | Australian Championships | QLD | 20 | 408 | 405 |
| 23/03/2001 | South Australian Championships | SA | 4 | 383 | 509 |
| 21/04/2003 | Australian Championships | SA | 18 | 376 | 406 |
| 12/04/2004 | Australian Championships | ACT | 17 | 334 | 422 |
| 25/04/2011 | Aus Championship | ACT | 10 | 438 | 340 |
| 11/09/2011 | AUSTRALIAN MASTERS & STC | SA | 7 | 381 | 365 |
| 14/09/2014 | MASTERS AND STATE CHALLENGE | SA | 4 | 444 | 396 |
| 28/03/2016 | Australian Championship | SA | 23 | 448 | 429 |
| 07/08/2016 | TRANS TASMAN | SA | 23 | 303 | 430 |
| 17/04/2017 | National Championship | WA | 9 | 416 | 312 |
| 17/04/2017 | National Championship | WA | 18 | 371 | 402 |
| 10/09/2017 | Australian Masters and State Team Challenge 2017 | SA | 12 | 354 | 498 |
| 22/04/2019 | 2019 Australian Championship | TAS | 21 | 338 | 445 |
| 19/04/2025 | National Championship and Plate | SA | 6 | 448 | 495 |
| Head-to-head after 18 games | 8 | 10 | |||
| Average score | 382.33 | 416.17 | |||
| Spread | -609 | 609 | |||