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