| Tournament | Round | Olga Visser | John Holgate |
| 27.01.2001 City of Sydney International Masters (NSW) | 1 | 259 | 517 |
| 22.07.2001 Winter Masters (NSW) | 12 | 392 | 416 |
| 01.10.2001 New South Wales Championships (NSW) | 4 | 393 | 376 |
| 19.01.2002 Baulkham Hills Kick-off (NSW) | 4 | 320 | 486 |
| 21.07.2002 Winter Masters (NSW) | 19 | 415 | 401 |
| 06.10.2003 NSW Championships (NSW) | 17 | 389 | 396 |
| 18.07.2004 Winter Masters (NSW) | 2 | 264 | 537 |
| 03.10.2005 New South Wales Championships (NSW) | 23 | 289 | 494 |
| 28.01.2007 City of Sydney International Masters (NSW) | 2 | 299 | 498 |
| 22.07.2007 Winter Masters (NSW) | 17 | 324 | 498 |
| 30.01.2011 City of Sydney International Masters (NSW) | 3 | 335 | 489 |
| 16.06.2012 Wollongong WORDS Winter (NSW) | 1 | 327 | 439 |
| 28.01.2013 CITY OF SYDNEY MASTERS (NSW) | 4 | 354 | 363 |
| 26.01.2015 City of Sydney International Masters (NSW) | 1 | 335 | 437 |
| 06.11.2015 Perth International (WA) | 6 | 368 | 454 |
| 26.01.2018 Australia Day Open (NSW) | 4 | 344 | 530 |
| 28.01.2018 City of Sydney International Masters (NSW) | 6 | 395 | 401 |
| Head-to-head after 17 games | 2 | 15 | |
| Average score | 341.29 | 454.82 | |
| Spread: | -1930 | 1930 | |