| Date | Tournament | State | Round | Sheryl Davidson | Olga Visser |
|---|---|---|---|---|---|
| 05/05/2002 | Big Weekend Open | QLD | 5 | 425 | 292 |
| 12/04/2003 | Nationals Warm-up | QLD | 2 | 348 | 330 |
| 12/04/2003 | Nationals Warm-up | QLD | 10 | 361 | 313 |
| 03/05/2003 | Big Weekend Saturday | QLD | 2 | 422 | 315 |
| 13/07/2003 | Coominya | QLD | 5 | 354 | 317 |
| 24/08/2003 | Queensland Championships | QLD | 8 | 414 | 336 |
| 25/10/2003 | Mindbenders Open | QLD | 2 | 411 | 355 |
| 15/11/2003 | Cleveland | QLD | 3 | 419 | 405 |
| 13/12/2003 | December Progressive Marathon | QLD | 4 | 319 | 445 |
| 13/12/2003 | December Progressive Marathon | QLD | 9 | 422 | 343 |
| 17/01/2004 | Greenbank | QLD | 6 | 385 | 408 |
| 02/05/2004 | Charity Open | QLD | 5 | 461 | 275 |
| 22/08/2004 | Queensland Championships | QLD | 16 | 468 | 356 |
| 12/09/2004 | Toowoomba | QLD | 2 | 434 | 273 |
| 13/11/2004 | Cleveland | QLD | 3 | 460 | 446 |
| 19/06/2005 | Albert & Logan | QLD | 5 | 346 | 409 |
| 31/07/2005 | KKO Round Robin | QLD | 4 | 454 | 340 |
| 31/07/2005 | KKO Round Robin | QLD | 9 | 388 | 377 |
| 21/08/2005 | Queensland Championships | QLD | 9 | 410 | 360 |
| 06/11/2005 | Newmarket | QLD | 6 | 414 | 365 |
| 04/12/2005 | Southport | QLD | 1 | 428 | 373 |
| 09/04/2006 | Coorparoo Warmup Marathon | QLD | 8 | 422 | 314 |
| 16/07/2006 | Newmarket | QLD | 2 | 443 | 291 |
| 27/08/2006 | Queensland Championships | QLD | 6 | 378 | 386 |
| 28/10/2006 | Mindbenders Saturday | QLD | 3 | 394 | 397 |
| 31/03/2007 | qld warmup | QLD | 7 | 410 | 356 |
| 07/05/2007 | Queensland Championships (Masters) | QLD | 9 | 499 | 269 |
| 11/08/2007 | Watoto Charity | QLD | 1 | 424 | 275 |
| 27/10/2007 | Mindbenders Open | QLD | 5 | 366 | 449 |
| 30/08/2008 | Claytons Saturday | QLD | 8 | 441 | 380 |
| 16/11/2008 | Cleveland | QLD | 5 | 253 | 512 |
| 18/01/2009 | Logan City | QLD | 3 | 411 | 339 |
| 05/04/2009 | Nationals Warm-up | QLD | 2 | 439 | 417 |
| 24/10/2009 | Redcliffe ABC | QLD | 5 | 495 | 464 |
| 13/02/2010 | Ipswich | QLD | 1 | 409 | 329 |
| 04/07/2010 | Coominya | QLD | 5 | 483 | 296 |
| 29/08/2010 | Qld Championships | QLD | 1 | 444 | 309 |
| 10/10/2010 | Oktober Scrabblefest | QLD | 7 | 381 | 414 |
| 14/11/2010 | Remember November | QLD | 4 | 373 | 413 |
| 16/01/2011 | Logan Clovers | QLD | 7 | 453 | 332 |
| 12/03/2011 | Redland Bay | QLD | 2 | 358 | 297 |
| 03/04/2011 | Foolishly April | QLD | 4 | 370 | 344 |
| 03/07/2011 | Coominya | QLD | 1 | 504 | 306 |
| 23/07/2011 | July Extra | QLD | 5 | 383 | 312 |
| 29/10/2011 | Redcliffe Saturday | QLD | 2 | 345 | 331 |
| 15/01/2012 | Logan Clovers | QLD | 4 | 304 | 355 |
| 10/03/2012 | Redland Bay | QLD | 5 | 346 | 372 |
| 25/03/2012 | March Marathon | QLD | 2 | 233 | 461 |
| 25/03/2012 | March Marathon | QLD | 8 | 409 | 411 |
| 07/05/2012 | Alzheimer's FR Monday | QLD | 8 | 456 | 297 |
| 26/08/2012 | Qld Championships | QLD | 8 | 385 | 379 |
| 26/08/2012 | Qld Championships | QLD | 15 | 357 | 449 |
| 24/10/2012 | Norman Pub October | QLD | 2 | 391 | 380 |
| 20/01/2013 | Logan Clovers | QLD | 4 | 380 | 381 |
| 09/03/2013 | Redland Bay | QLD | 4 | 347 | 367 |
| 24/03/2013 | Multi Matchplay | QLD | 6 | 312 | 469 |
| 13/04/2013 | Bremer Waters | QLD | 5 | 408 | 384 |
| 09/06/2013 | Toowoomba June | QLD | 8 | 362 | 362 |
| 01/12/2013 | Southport Sunday | QLD | 6 | 393 | 373 |
| 28/12/2013 | Last Chance | QLD | 4 | 406 | 392 |
| 05/04/2014 | Bremer Waters | QLD | 5 | 360 | 335 |
| 06/07/2014 | Coominya | QLD | 6 | 410 | 339 |
| 03/08/2014 | WYSC Fundraiser | QLD | 3 | 393 | 337 |
| 21/09/2014 | Toowoomba | QLD | 6 | 407 | 409 |
| 25/10/2014 | Redcliffe Saturday | QLD | 5 | 362 | 405 |
| 28/06/2015 | Southport Winter | QLD | 6 | 444 | 367 |
| 30/08/2015 | Qld Championships | QLD | 8 | 379 | 422 |
| 25/10/2015 | Redcliffe | QLD | 8 | 261 | 420 |
| 27/12/2015 | Last Chance | QLD | 3 | 380 | 334 |
| 26/06/2016 | Southport Winter | QLD | 1 | 245 | 422 |
| 09/10/2016 | Octoploid | QLD | 7 | 358 | 312 |
| 27/12/2017 | Last Chance | QLD | 1 | 305 | 420 |
| 20/01/2018 | Jan Jaunt B | QLD | 5 | 374 | 377 |
| 24/02/2018 | Feb RR | QLD | 7 | 323 | 444 |
| 10/03/2018 | Bremer Waters | QLD | 5 | 297 | 428 |
| 29/04/2018 | Brunswick Valley | QLD | 7 | 376 | 277 |
| 19/05/2018 | Paradise Point | QLD | 7 | 464 | 367 |
| 10/06/2018 | Toowoomba Wound Wobins | QLD | 1 | 371 | 423 |
| 26/08/2018 | Queensland Championships | QLD | 7 | 360 | 408 |
| 15/09/2018 | Toowoomba Spring | QLD | 4 | 429 | 324 |
| 14/10/2018 | Mid-October Madness | QLD | 6 | 544 | 415 |
| 25/11/2018 | Southport Christmas | QLD | 4 | 378 | 358 |
| 20/01/2019 | Tangara Jan | QLD | 1 | 416 | 354 |
| 10/02/2019 | Logan Clovers | QLD | 6 | 316 | 323 |
| 07/04/2019 | Brunswick Valley | QLD | 7 | 305 | 398 |
| 02/06/2019 | Sunshine Coast | QLD | 13 | 394 | 383 |
| 25/08/2019 | WESPA Seniors 2019 | QLD | 21 | 407 | 285 |
| 27/10/2019 | Redcliffe | QLD | 4 | 374 | 484 |
| 17/11/2019 | November QAH | QLD | 5 | 350 | 364 |
| 01/12/2019 | Southport Christmas | QLD | 4 | 413 | 352 |
| 12/01/2020 | Logan City Clovers | QLD | 6 | 382 | 428 |
| 23/02/2020 | Zephyr Fundraiser | QLD | 3 | 459 | 355 |
| 21/09/2020 | Bethania | QLD | 3 | 351 | 365 |
| 10/12/2020 | Bethania Thurs | QLD | 4 | 429 | 323 |
| 10/12/2020 | Bethania Thurs | QLD | 4 | 429 | 323 |
| 20/12/2020 | Last Chance | QLD | 6 | 367 | 385 |
| 07/02/2021 | Logan Clovers | QLD | 8 | 358 | 301 |
| 07/03/2021 | March Madness | QLD | 5 | 398 | 306 |
| 02/05/2021 | May Day | QLD | 4 | 409 | 341 |
| 05/06/2021 | Toowoomba Winter | QLD | 8 | 453 | 344 |
| 17/06/2021 | Bethania Thu RR | QLD | 5 | 428 | 320 |
| 11/07/2021 | July Surprise | QLD | 7 | 385 | 342 |
| 22/08/2021 | Qld Champs | QLD | 4 | 356 | 460 |
| 19/12/2021 | Last Chance | QLD | 8 | 310 | 465 |
| 16/01/2022 | Logan Clovers 2022 | QLD | 2 | 445 | 301 |
| 18/06/2022 | Toowoomba June | QLD | 2 | 380 | 399 |
| 21/08/2022 | Qld Championship | QLD | 2 | 325 | 253 |
| 11/12/2022 | Southport Xmas | QLD | 7 | 367 | 376 |
| 22/01/2023 | Logan Clovers | QLD | 4 | 399 | 290 |
| 14/05/2023 | Queensland May | QLD | 2 | 465 | 300 |
| 14/05/2023 | Queensland May | QLD | 2 | 465 | 300 |
| 04/06/2023 | Southport Winter | QLD | 6 | 341 | 382 |
| 17/06/2023 | Toowoomba Winter | QLD | 3 | 354 | 373 |
| 19/08/2023 | Qld Champs | QLD | 4 | 284 | 472 |
| 21/01/2024 | Logan Clovers | QLD | 2 | 451 | 372 |
| 17/03/2024 | March Madness | QLD | 5 | 341 | 312 |
| 19/05/2024 | May Mayhem | QLD | 1 | 354 | 406 |
| 02/06/2024 | Southport Mid-Year | QLD | 6 | 393 | 401 |
| 15/06/2024 | Toowoomba Winter | QLD | 8 | 322 | 351 |
| 12/10/2024 | Qld AGM | QLD | 7 | 393 | 353 |
| 10/11/2024 | November Qld | QLD | 1 | 326 | 442 |
| 23/02/2025 | February Frolic | QLD | 1 | 479 | 360 |
| 27/04/2025 | April Antics | QLD | 2 | 441 | 363 |
| 01/06/2025 | June Jaunt | QLD | 1 | 390 | 315 |
| 20/07/2025 | July Jaunt | QLD | 1 | 381 | 293 |
| 13/09/2025 | Toowoomba Spring | QLD | 6 | 454 | 348 |
| 07/12/2025 | Southport Christmas | QLD | 4 | 368 | 381 |
| 15/02/2026 | Matchplay Qualifier | QLD | 2 | 437 | 351 |
| 07/06/2026 | Gold Coast Winter | QLD | 5 | 328 | 432 |
| 13/06/2026 | Toowoomba Winter | QLD | 3 | 329 | 377 |
| Head-to-head after 130 games | 80.5 | 49.5 | |||
| Average score | 389.47 | 364.95 | |||
| Spread | 3187 | -3187 | |||