| Date | Tournament | State | Round | Carol Johnsen | Daniel Piechnick |
|---|---|---|---|---|---|
| 29/06/2000 | Bordertown | SA | 1 | 438 | 319 |
| 29/06/2000 | Bordertown | SA | 5 | 346 | 534 |
| 29/06/2000 | Bordertown | SA | 12 | 364 | 319 |
| 18/11/2001 | SA/Victoria Border Challenge | VIC | 2 | 350 | 477 |
| 02/11/2003 | SA/Victoria Border Challenge Dimboola | VIC | 4 | 428 | 364 |
| 12/04/2004 | Australian Championships | ACT | 1 | 367 | 352 |
| 31/10/2004 | SA/Victoria Border Challenge Dimboola | VIC | 7 | 357 | 439 |
| 31/10/2004 | SA/Victoria Border Challenge Dimboola | VIC | 12 | 379 | 481 |
| 30/10/2005 | Victoria/SA Border Challenge Dimboola | VIC | 9 | 384 | 375 |
| 08/12/2007 | Halls Gap Border Challenge SA:Vic | VIC | 7 | 441 | 395 |
| 05/04/2010 | Aus Championship | SA | 5 | 398 | 417 |
| 23/10/2010 | Vic/SA Border Challenge | VIC | 8 | 292 | 532 |
| 17/04/2017 | National Championship | WA | 8 | 392 | 450 |
| 08/03/2020 | SA Championship | SA | 9 | 372 | 493 |
| 06/03/2021 | SA Champs | SA | 16 | 471 | 474 |
| 12/03/2022 | SA Scrabble Champs | SA | 13 | 299 | 557 |
| 03/06/2023 | Social Scrabble June 3 | SA | 1 | 373 | 473 |
| Head-to-head after 17 games | 6 | 11 | |||
| Average score | 379.47 | 438.29 | |||
| Spread | -1000 | 1000 | |||