The eighth-placed Gulls were disappointed to come away with a 2-2 draw against 11th-placed Perth Glory at home, a side they would normally beat.
At Dalmatinac Park, ninth-placed ECU Joondalup suffered its third-straight loss when Cockburn City won 2-1.
The Jacks’ Tommy Amphlett levelled the score at 1-1 in the 50th minute and they held on until the 80th minute when Harry O’Brien scored again.
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