| Tournament | Round | Ivor Zetler | Colleen Birch |
| 11.01.2009 Baulkham Hills Yearly Nearly Early (NSW) | 3 | 307 | 283 |
| 04.03.2012 Balmain BUGS (NSW) | 6 | 441 | 332 |
| 07.01.2017 Janboree (NSW) | 3 | 345 | 317 |
| 03.06.2017 Central Coast (NSW) | 1 | 381 | 347 |
| 04.01.2020 JanBoree (NSW) | 8 | 369 | 450 |
| 05.06.2021 BEECROFT MARATHON (NSW) | 6 | 515 | 316 |
| 13.11.2021 2021 NSW Championship (NSW) | 4 | 453 | 388 |
| 08.01.2022 JANBOREE (NSW) | 8 | 359 | 480 |
| 04.01.2025 JanBoree (NSW) | 3 | 351 | 405 |
| Head-to-head after 9 games | 6 | 3 | |
| Average score | 391.22 | 368.66 | |
| Spread: | 203 | -203 | |