| Tournament | Round | Jeff Chelton | Mary McMahon |
| 14.06.1999 Victorian Championships (VIC) | 20 | 410 | 371 |
| 10.06.2002 Victorian Championships (VIC) | 1 | 312 | 358 |
| 10.06.2006 vic06 3 DAY (VIC) | 9 | 374 | 445 |
| 09.06.2014 Vic Champs (VIC) | 17 | 296 | 440 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 348 | 403.5 | |
| Spread: | -222 | 222 | |