| Date | Tournament | State | Round | John Holgate | Dianne Davis |
|---|---|---|---|---|---|
| 30/12/1996 | Summer Sgramble | VIC | 16 | 512 | 334 |
| 20/04/1997 | NSW/Victoria Border Challenge | NSW | 5 | 364 | 401 |
| 06/10/1997 | New South Wales Championships | NSW | 12 | 361 | 375 |
| 26/07/1998 | Winter Masters | NSW | 2 | 496 | 307 |
| 12/04/2004 | Australian Championships | ACT | 19 | 461 | 344 |
| 12/04/2004 | Australian Championships | ACT | 21 | 397 | 460 |
| 02/04/2018 | 2018 National Championship | ACT | 16 | 362 | 347 |
| 27/12/2023 | Decathon 2023 | VIC | 10 | 447 | 296 |
| Head-to-head after 8 games | 5 | 3 | |||
| Average score | 425.00 | 358.00 | |||
| Spread | 536 | -536 | |||