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