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