| Date | Tournament | State | Round | Daniel Piechnick | Karen Richards |
|---|---|---|---|---|---|
| 22/08/1999 | August | SA | 5 | 496 | 277 |
| 13/02/2000 | South Australian Championships | SA | 8 | 392 | 390 |
| 22/04/2000 | Australian Championships | QLD | 2 | 381 | 300 |
| 21/10/2000 | Unley October | SA | 2 | 471 | 344 |
| 23/03/2001 | South Australian Championships | SA | 11 | 480 | 306 |
| 23/03/2001 | South Australian Championships | SA | 14 | 349 | 430 |
| 16/04/2001 | Australian Championships | VIC | 19 | 430 | 332 |
| 07/03/2004 | South Australian Championships | SA | 2 | 333 | 386 |
| 07/03/2004 | South Australian Championships | SA | 10 | 519 | 359 |
| 13/03/2005 | South Australian Championships | SA | 7 | 425 | 304 |
| 13/03/2005 | South Australian Championships | SA | 9 | 325 | 398 |
| 28/03/2005 | Australian Championships | TAS | 5 | 328 | 410 |
| 12/03/2006 | South Australian Championships | SA | 2 | 349 | 363 |
| 17/04/2006 | Australian Championships | QLD | 10 | 351 | 396 |
| 11/03/2007 | South Australian Championships | SA | 7 | 270 | 454 |
| 11/03/2007 | South Australian Championships | SA | 14 | 453 | 402 |
| 08/11/2008 | WYSC Fundraiser | SA | 1 | 371 | 382 |
| 05/04/2010 | Aus Championship | SA | 14 | 365 | 334 |
| 13/03/2016 | SA Championship | SA | 6 | 431 | 281 |
| 13/03/2016 | SA Championship | SA | 15 | 474 | 374 |
| 07/08/2016 | TRANS TASMAN | SA | 13 | 479 | 273 |
| 10/09/2017 | Australian Masters and State Team Challenge 2017 | SA | 16 | 459 | 437 |
| 12/03/2022 | SA Scrabble Champs | SA | 3 | 482 | 402 |
| 12/03/2022 | SA Scrabble Champs | SA | 12 | 356 | 473 |
| 09/03/2024 | SA CHAMPS 2024 | SA | 3 | 433 | 372 |
| 09/03/2024 | SA CHAMPS 2024 | SA | 14 | 401 | 459 |
| 07/09/2024 | AUSTRALIAN MASTERS | SA | 12 | 568 | 335 |
| 19/04/2025 | National Championship and Plate | SA | 21 | 411 | 414 |
| 07/03/2026 | SA Champs 2026 | SA | 16 | 287 | 500 |
| Head-to-head after 29 games | 17 | 12 | |||
| Average score | 409.28 | 375.41 | |||
| Spread | 982 | -982 | |||