A one-point victory was enough for the club to claim their second victory of the campaign.
Shamrocks have topped group two of the Offaly Senior Football Championship with a round to spare.
A Nigel Dunne penalty in the first half proved to be crucial, as his side claimed a one-point victory over Edenderry on Friday.
The win represents Shamrock's second victory of the campaign - the final score in Gaelic Park was 1-9 to 0-11.
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