| Tournament | Round | Trevor Halsall | Jeff Chelton |
| 25.01.1998 City of Sydney International Masters (NSW) | 12 | 430 | 366 |
| 25.01.1998 City of Sydney International Masters (NSW) | 18 | 478 | 363 |
| 05.04.1999 Australian Championships (NSW) | 1 | 370 | 377 |
| 17.04.1999 Central Coast - Wyong (NSW) | 3 | 415 | 365 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 423.25 | 367.75 | |
| Spread: | 222 | -222 | |