| Date | Tournament | State | Round | Colleen Birch | Chris May |
|---|---|---|---|---|---|
| 05/09/1999 | Baulkham Hills Open | NSW | 1 | 367 | 408 |
| 02/06/2018 | Central Coast | NSW | 7 | 339 | 446 |
| 01/10/2018 | NSW Champs | NSW | 2 | 360 | 406 |
| 23/02/2019 | MatchPlay Qualifier | NSW | 5 | 321 | 488 |
| 13/11/2021 | 2021 NSW Championship | NSW | 6 | 296 | 530 |
| Head-to-head after 5 games | 0 | 5 | |||
| Average score | 336.60 | 455.60 | |||
| Spread | -595 | 595 | |||