| Tournament | Round | Chris May | Richard Birch |
| 05.09.1999 Baulkham Hills Open (NSW) | 8 | 349 | 371 |
| 21.03.2004 Wyong (NSW) | 2 | 401 | 412 |
| 22.03.2009 Wyong (NSW) | 1 | 561 | 299 |
| 27.02.2011 Matchplay Qualifier (NSW) | 4 | 431 | 313 |
| 29.07.2018 NSW WINTER MASTERS (NSW) | 3 | 554 | 267 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 459.2 | 332.4 | |
| Spread: | 634 | -634 | |