| Tournament | Round | Marlene Brown | Arni Abbott |
| 21.03.1998 February (SA) | 6 | 336 | 358 |
| 24.07.2000 July (SA) | 6 | 379 | 322 |
| 15.07.2001 July (SA) | 5 | 343 | 333 |
| 25.08.2001 August (SA) | 4 | 313 | 359 |
| 16.09.2001 September (SA) | 4 | 307 | 416 |
| 14.10.2001 October (SA) | 3 | 353 | 292 |
| 23.11.2001 November (SA) | 6 | 327 | 415 |
| 25.05.2002 Northern Tournament (SA) | 6 | 275 | 353 |
| 21.06.2003 Unley June (SA) | 5 | 419 | 292 |
| 20.07.2003 Hove (SA) | 3 | 351 | 385 |
| 08.02.2004 February Open (SA) | 6 | 317 | 373 |
| 07.03.2004 South Australian Championships (SA) | 2 | 340 | 380 |
| 24.04.2004 Unley April (SA) | 3 | 401 | 426 |
| 16.10.2004 Unley October (SA) | 3 | 350 | 365 |
| 18.06.2005 June (SA) | 5 | 375 | 393 |
| 29.12.2005 Xmas Leftovers (SA) | 6 | 376 | 341 |
| 05.02.2006 Round Robin (SA) | 7 | 276 | 399 |
| 30.04.2006 April Tournament (SA) | 3 | 327 | 301 |
| 16.07.2006 SA July (SA) | 4 | 348 | 343 |
| 28.07.2006 Norwood Nightowl (SA) | 4 | 359 | 337 |
| 12.04.2008SA April (SA) | 4 | 273 | 412 |
| 05.07.2009 July Pub Scrabble (SA) | 1 | 301 | 408 |
| 06.02.2011 SA February (SA) | 3 | 391 | 355 |
| Head-to-head after 23 games | 9 | 14 | |
| Average score | 340.73 | 363.39 | |
| Spread: | -521 | 521 | |