Finn Harps secured all three points on Saturday.
Athlone Town will have to wait another week to secure a play-off position in the League of Ireland First Division.
They suffered a heavy defeat away to Finn Harps on Saturday with the scoreline ending 4-1 in favour of the Donegal side.
Tony McNamee and a hat trick, including two penalties from Ryan flood sent the harps on their way to an emphatic victory, with Jamie Watson scoring Town's goal.
Dario Castelo's men will need a win this weekend over Longford to make the play-offs.
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