| Tournament | Round | Olga Visser | Richard Birch |
| 27.01.2001 City of Sydney International Masters (NSW) | 6 | 428 | 374 |
| 04.02.2001 Kempsey (NSW) | 7 | 449 | 326 |
| 29.07.2001 Newcastle (NSW) | 5 | 411 | 335 |
| 27.01.2002 City of Sydney International Masters (NSW) | 12 | 492 | 298 |
| 01.02.2004 Kempsey (NSW) | 8 | 388 | 348 |
| 18.07.2004 Winter Masters (NSW) | 12 | 395 | 338 |
| 30.01.2005 City of Sydney International Masters (NSW) | 18 | 418 | 286 |
| 05.02.2006 Kempsey Challenge (NSW) | 7 | 429 | 381 |
| 04.02.2007 Kempsey Challenge (NSW) | 2 | 382 | 345 |
| 03.02.2008 Kempsey Challenge & Cup (NSW) | 3 | 293 | 373 |
| 03.02.2008 Kempsey Challenge & Cup (NSW) | 11 | 378 | 390 |
| 30.01.2010 Kempsey Cup & Challenge (NSW) | 3 | 396 | 376 |
| 05.04.2010 Aus Championship (SA) | 15 | 307 | 519 |
| 29.01.2012 CITY OF SYDNEY MASTERS (NSW) | 5 | 348 | 386 |
| 29.01.2012 CITY OF SYDNEY MASTERS (NSW) | 20 | 447 | 303 |
| 05.02.2012 Kempsey (NSW) | 8 | 449 | 349 |
| 18.02.2024 February Frolic (QLD) | 7 | 327 | 346 |
| Head-to-head after 17 games | 12 | 5 | |
| Average score | 396.29 | 357.23 | |
| Spread: | 664 | -664 | |