| Tournament | Round | Joan Riley | Jonnie Gunson |
| 05.07.1998 Southern Tasmania (TAS) | 4 | 329 | 330 |
| 09.02.2003 Ulverstone (TAS) | 6 | 375 | 321 |
| 23.01.2005 Ulverstone (TAS) | 13 | 457 | 264 |
| 15.05.2005 East Coast (TAS) | 6 | 330 | 343 |
| 15.05.2005 East Coast (TAS) | 14 | 291 | 363 |
| 30.10.2005 Tasmanian Championships (TAS) | 10 | 363 | 331 |
| 29.10.2006 Tasmanian Championships (TAS) | 13 | 382 | 317 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 361 | 324.14 | |
| Spread: | 258 | -258 | |