| Date | Tournament | State | Round | Mary McMahon | Jeff Chelton |
|---|---|---|---|---|---|
| 14/06/1999 | Victorian Championships | VIC | 20 | 371 | 410 |
| 10/06/2002 | Victorian Championships | VIC | 1 | 358 | 312 |
| 10/06/2006 | vic06 3 DAY | VIC | 9 | 445 | 374 |
| 09/06/2014 | Vic Champs | VIC | 17 | 440 | 296 |
| Head-to-head after 4 games | 3 | 1 | |||
| Average score | 403.50 | 348.00 | |||
| Spread | 222 | -222 | |||