| Date | Tournament | State | Round | John Hamilton | Olga Visser |
|---|---|---|---|---|---|
| 05/10/2009 | NSW CHAMPIONSHIPS | NSW | 5 | 393 | 320 |
| 23/01/2010 | CITY OF SYDNEY | NSW | 15 | 383 | 409 |
| 26/09/2010 | Moss Vale | NSW | 1 | 258 | 509 |
| 21/04/2011 | Championship WARMUP 2 | ACT | 2 | 380 | 369 |
| 01/10/2012 | NSW Championships | NSW | 4 | 417 | 396 |
| 01/10/2012 | NSW Championships | NSW | 15 | 383 | 419 |
| 28/01/2013 | CITY OF SYDNEY MASTERS | NSW | 17 | 440 | 352 |
| Head-to-head after 7 games | 4 | 3 | |||
| Average score | 379.14 | 396.29 | |||
| Spread | -120 | 120 | |||