| Tournament | Round | Olga Visser | Jeff Chelton |
| 01.10.2001 New South Wales Championships (NSW) | 14 | 392 | 352 |
| 24.08.2003 Queensland Championships (QLD) | 13 | 338 | 322 |
| 06.10.2003 NSW Championships (NSW) | 12 | 378 | 364 |
| 06.10.2003 NSW Championships (NSW) | 20 | 402 | 413 |
| 01.08.2004 Redcliffe Go For Dough (QLD) | 5 | 395 | 379 |
| 21.08.2005 Queensland Championships (QLD) | 7 | 417 | 324 |
| 27.08.2006 Queensland Championships (QLD) | 3 | 392 | 377 |
| 04.02.2007 Kempsey Challenge (NSW) | 11 | 237 | 447 |
| 16.06.2007 Wollongong (NSW) | 7 | 443 | 326 |
| 09.08.2009 Magnetic Island Sunday (QLD) | 2 | 387 | 215 |
| 25.04.2011 Aus Championship (ACT) | 15 | 402 | 463 |
| 29.10.2011 Redcliffe Saturday (QLD) | 6 | 323 | 384 |
| 28.10.2012 Redcliffe Sunday (QLD) | 3 | 417 | 311 |
| 06.10.2014 NSW Championships (NSW) | 1 | 453 | 351 |
| Head-to-head after 14 games | 10 | 4 | |
| Average score | 384 | 359.14 | |
| Spread: | 348 | -348 | |