The midlanders were held to a 2-2 draw.
Athlone Town have lost their place at the top of the Women's Premier Division standings after failing to win in league action for a third straight game.
The midlanders were held to a 2-2 draw away to Bohemians on Saturday, allowing Shelbourne to take top spot in the table.
Colin Fortune's side were staring at a likely defeat after falling two goals down after 35 minutes before Kelly Brady struck back five minutes before half time to halve the gap.
Roisin Molloy's 84th minute equaliser secured the Westmeath club a share of the spoils, while Shelbourne picked up three points with a 2-1 win at home to Waterford.
Athlone are in FAI Cup action this weekend with a tricky away trip to take on Peamount United in Dublin on Saturday.
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