The 2003 Harris Edwardes competition was played on consecutive Mondays at the Chess Centre at the Kings Hotel in Perth and was contested by 12 teams. Gordon Dunlop did a splendid job as DOP.
A division was won by Fremante who defeated Metro in the final (2.5 to 1.5). Top scorer in this division was Adam Haasse.
In the B division, Fremantle were too good for Metro in the final (3.0 to 1.0) with Jack Saffen and Mark Chapman being the top board scorers.
C division resulted in a tie (2.0 to 2.0) between Midland and Metro C1. The top scorers were Dennis Holland and Andrew Arnold.
| A Division | Fremantle | Metro | Midland | Points | Tie-break | Place |
| Fremantle | 1.5 + 3.5 | 2.5 + 2 | 5 | 9.5 | 1 | |
| Metro | 2.5 + 0.5 | 2.5 + 0.5 | 4 | 6.0 | 2 | |
| Midland | 1.5 + 2 | 1.5 + 3.5 | 3 | 8.5 | 3 |
A Division won by Fremantle. Final: Fremantle (2.5) V Metro (1.5)
| B Division | Fremantle | Metro | JCC | Midland | Perth | Points | Tie-break | Place |
| Fremantle | 0 | 3.5 | 3.5 | 2.5 | 6 | 9.5 | 1 | |
| Metro | 4 | 0.5 | 4 | 2 | 5 | 10.5 | 2 | |
| JCC | 0.5 | 3.5 | 1 | 2.5 | 4 | 7.5 | 3 | |
| Midland | 0.5 | 0 | 3 | 3.5 | 4 | 7.0 | 4 | |
| Perth | 1.5 | 2 | 1.5 | 0.5 | 1 | 5.5 | 5 |
B Division won by Fremantle. Final: Fremantle (3) V Metro (1)
| C Division | Midland | Metro C1 | Perth | Metro C2 | Points | Tie-break | Place |
| Midland | 4 + 1.5 | 2.5 + 2 | 2 + 3 | 8 | 15 | 1 | |
| Metro C1 | 0 + 2.5 | 3 + 2.5 | 1 + 3 | 8 | 12 | 2 | |
| Perth | 1.5 + 2 | 1 + 1.5 | 2 + 3 | 4 | 11 | 3 | |
| Metro C2 | 2 + 1 | 3 + 1 | 2 + 1 | 4 | 10 | 4 |
C Division tied between Midland & Metro C1. Final: Midland (2) V Metro C1 (2)