| Date | Tournament | State | Round | Daniel Piechnick | John Barker |
|---|---|---|---|---|---|
| 20/06/1994 | South Australian Championships | SA | 4 | 344 | 492 |
| 14/05/1995 | South Australian Championships | SA | 7 | 294 | 378 |
| 14/05/1995 | South Australian Championships | SA | 12 | 348 | 346 |
| 31/03/1997 | Australian Scrabble Championship | SA | 2 | 460 | 384 |
| 01/08/1999 | Winter Masters | NSW | 8 | 443 | 426 |
| 22/04/2000 | Australian Championships | QLD | 7 | 402 | 441 |
| 12/06/2000 | Victorian Championships | VIC | 21 | 479 | 332 |
| 28/10/2012 | October Pub Tourney | SA | 5 | 505 | 281 |
| 22/04/2019 | 2019 Australian Championship | TAS | 2 | 564 | 230 |
| Head-to-head after 9 games | 6 | 3 | |||
| Average score | 426.56 | 367.78 | |||
| Spread | 529 | -529 | |||