| Tournament | Round | Joan Riley | Lorraine Gray |
| 05.07.1998 Southern Tasmania (TAS) | 7 | 300 | 322 |
| 19.09.1998 Tasmanian Championships (TAS) | 5 | 308 | 329 |
| 19.09.1998 Tasmanian Championships (TAS) | 12 | 400 | 301 |
| 13.06.1999 Round Robin (TAS) | 2 | 361 | 329 |
| 13.06.1999 Round Robin (TAS) | 12 | 363 | 360 |
| 31.10.1999 Tasmanian Championships (TAS) | 4 | 274 | 316 |
| 29.10.2000 Hobart October (TAS) | 10 | 370 | 365 |
| 31.03.2001 Tasmania March (TAS) | 6 | 356 | 271 |
| 26.05.2002 Bellerive (TAS) | 5 | 339 | 339 |
| 27.10.2002 Tasmnaian Championships (TAS) | 2 | 386 | 333 |
| 08.03.2003 Glenorchy (TAS) | 3 | 348 | 312 |
| 31.10.2004 Tasmanian Championships (TAS) | 6 | 319 | 370 |
| Head-to-head after 12 games | 7.5 | 4.5 | |
| Average score | 343.66 | 328.91 | |
| Spread: | 177 | -177 | |