| Tournament | Round | Mary McMahon | Graeme Lock Lee |
| 09.06.2001 Victorian Championships (VIC) | 6 | 310 | 424 |
| 10.06.2002 Victorian Championships (VIC) | 14 | 384 | 374 |
| 08.06.2003 Victorian Championships (VIC) | 7 | 336 | 458 |
| 14.06.2004 Victorian Championships (VIC) | 23 | 381 | 325 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 352.75 | 395.25 | |
| Spread: | -170 | 170 | |