Kilkenny needed a late winner to see off Waterford in Division 1A of the National Hurling League.
Cian Kenny's free completed a comeback for the Cats who came away from Nowlan Park with a 1-21 to 1-20 victory.
Meanwhile, Galway have their first win of the year.
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They were too good for Offaly and emerged as 2-23 to 18 point winners.
