| Tournament | Round | Jan hill | Olga Visser |
| 11.04.2009 AUST CHAMPIONSHIP (WA) | 16 | 428 | 347 |
| 25.04.2011 Aus Championship (ACT) | 11 | 427 | 376 |
| 09.04.2012 Australian Championship (TAS) | 7 | 383 | 438 |
| 09.04.2012 Australian Championship (TAS) | 22 | 431 | 340 |
| 01.04.2013 Australian Championship (QLD) | 9 | 294 | 438 |
| 01.04.2013 Australian Championship (QLD) | 14 | 452 | 396 |
| 06.04.2015 Australian Championship (VIC) | 5 | 335 | 391 |
| 06.04.2015 Australian Championship (VIC) | 20 | 312 | 454 |
| 16.04.2022 Australian Championship (QLD) | 19 | 389 | 341 |
| 09.08.2025 Women's Championship (QLD) | 4 | 462 | 362 |
| 09.08.2025 Women's Championship (QLD) | 13 | 345 | 406 |
| 02.04.2026 Australian Womens Champ (ACT) | 6 | 394 | 348 |
| 04.04.2026 AUS CHAMPS (ACT) | 8 | 367 | 350 |
| 04.04.2026 AUS CHAMPS (ACT) | 19 | 363 | 402 |
| Head-to-head after 14 games | 8 | 6 | |
| Average score | 384.42 | 384.92 | |
| Spread: | -7 | 7 | |