| Tournament | Round | Graeme Lock Lee | Patricia Mitchell |
| 08.06.1998 Victorian Championships (VIC) | 16 | 372 | 339 |
| 09.06.2001 Victorian Championships (VIC) | 20 | 388 | 351 |
| 10.06.2002 Victorian Championships (VIC) | 12 | 495 | 305 |
| 28.03.2005 Australian Championships (TAS) | 8 | 446 | 356 |
| 24.03.2008 Australian Championship (VIC) | 4 | 408 | 388 |
| Head-to-head after 5 games | 5 | 0 | |
| Average score | 421.8 | 347.8 | |
| Spread: | 370 | -370 | |