| Tournament | Round | Olga Visser | Ian Hoffman |
| 31.03.2001 Albert & Logan (QLD) | 1 | 350 | 332 |
| 10.06.2001 Millmerran (QLD) | 6 | 318 | 394 |
| 02.12.2001 Southport (QLD) | 2 | 415 | 299 |
| 01.04.2002 Australian Championships (WA) | 18 | 420 | 437 |
| 04.05.2002 Big Weekend Round Robin (QLD) | 3 | 415 | 324 |
| 19.05.2002 Donnybrook (QLD) | 6 | 376 | 473 |
| 25.08.2002 Queensland Championships (QLD) | 8 | 394 | 410 |
| 29.03.2003 Albert & Logan (QLD) | 2 | 436 | 368 |
| 24.08.2003 Queensland Championships (QLD) | 15 | 369 | 356 |
| 30.08.2015 Qld Championships (QLD) | 6 | 535 | 298 |
| 22.08.2021 Qld Champs (QLD) | 13 | 379 | 493 |
| 16.04.2022 Australian Championship (QLD) | 6 | 410 | 333 |
| Head-to-head after 12 games | 7 | 5 | |
| Average score | 401.41 | 376.41 | |
| Spread: | 300 | -300 | |