| Tournament | Round | Dianne Davis | Graeme Lock Lee |
| 25.01.1998 City of Sydney International Masters (NSW) | 18 | 376 | 389 |
| 26.07.1998 Winter Masters (NSW) | 20 | 432 | 380 |
| 07.05.2000 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 4 | 393 | 401 |
| 05.05.2002 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 1 | 280 | 530 |
| 21.04.2003 Australian Championships (SA) | 5 | 281 | 558 |
| 08.06.2003 Victorian Championships (VIC) | 3 | 248 | 461 |
| 12.04.2004 Australian Championships (ACT) | 16 | 362 | 362 |
| 09.04.2007 Australian Championships (NSW) | 11 | 389 | 383 |
| 09.04.2007 Australian Championships (NSW) | 24 | 429 | 364 |
| 02.04.2018 2018 National Championship (ACT) | 24 | 402 | 356 |
| 25.08.2019 WESPA Seniors 2019 (QLD) | 14 | 405 | 460 |
| 25.08.2019 WESPA Seniors 2019 (QLD) | 21 | 384 | 450 |
| 04.04.2026 AUS CHAMPS (ACT) | 8 | 389 | 411 |
| Head-to-head after 13 games | 4.5 | 8.5 | |
| Average score | 366.92 | 423.46 | |
| Spread: | -735 | 735 | |