| Tournament | Round | Derek Mckenzie | Graeme Lock Lee |
| 29.03.1998 Wyong (NSW) | 7 | 368 | 404 |
| 17.05.1998 Ulladulla (NSW) | 3 | 408 | 275 |
| 08.06.1998 Victorian Championships (VIC) | 15 | 429 | 393 |
| 05.07.1998 High Country (VIC) | 2 | 369 | 527 |
| 23.08.1998 Queensland Championships (QLD) | 2 | 360 | 448 |
| 05.04.1999 Australian Championships (NSW) | 8 | 344 | 379 |
| 01.08.1999 Winter Masters (NSW) | 12 | 371 | 400 |
| 01.08.1999 Winter Masters (NSW) | 18 | 468 | 294 |
| 20.08.2000 Queensland Championships (QLD) | 13 | 345 | 471 |
| 21.07.2002 Winter Masters (NSW) | 11 | 440 | 301 |
| 25.08.2002 Queensland Championships (QLD) | 12 | 498 | 431 |
| 08.04.2023 AUS CHAMPS (VIC) | 8 | 404 | 394 |
| Head-to-head after 12 games | 6 | 6 | |
| Average score | 400.33 | 393.08 | |
| Spread: | 87 | -87 | |