| Tournament | Round | Doris Marsden | Keith Merritt |
| 02.05.1999 Maelstrom (QLD) | 6 | 361 | 264 |
| 23.05.1999 Brisbane Open (QLD) | 2 | 276 | 281 |
| 28.11.1999 Southport (QLD) | 1 | 319 | 363 |
| 30.04.2000 Auran Round Robin (QLD) | 4 | 282 | 363 |
| 09.07.2000 Coominya Winter (QLD) | 6 | 297 | 301 |
| 15.10.2000 Mindbenders Standard (QLD) | 6 | 282 | 335 |
| 11.03.2001 Brisbane Open (QLD) | 4 | 333 | 352 |
| 06.10.2001 Mindbenders Open (QLD) | 3 | 345 | 303 |
| 11.11.2001 Redcliffe (QLD) | 2 | 338 | 415 |
| 24.02.2002 Ipswich (QLD) | 3 | 312 | 281 |
| 19.05.2002 Donnybrook (QLD) | 2 | 355 | 338 |
| 14.07.2002 Coominya (QLD) | 6 | 333 | 363 |
| 09.02.2003 Ipswich (QLD) | 2 | 300 | 354 |
| 03.10.2004 Mindbenders Standard (QLD) | 6 | 272 | 380 |
| 23.10.2005 Mindbenders Standard (QLD) | 5 | 302 | 308 |
| Head-to-head after 15 games | 4 | 11 | |
| Average score | 313.8 | 333.4 | |
| Spread: | -294 | 294 | |