In Ardfinnan Moyle Rovers defeated Galtee Rovers/St. Pecaun in a tight game by 0-09 to 0-08.
In Bansha Arravale Rovers booked their place in the last 8, with a 0-13 to 1-06 victory over Ardfinnan.
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At Leahy Park Thomas MacDonaghs saw off the challenge of Kilsheelan-Kilcash, winning by 3-08 to 0-09.
And in the relegation clash in Killenaule Clonmel Óg edged Fethard by 2-06 to 1-08, thanks to a late goal from Dwayne Burns.
Elsewhere, Holycross/Ballycahill beat Moycarkey-Borris in their Mid U21 A Hurling Championship encounter in Boherlahan by 1-18 to 1-09.
Mid U21 A Hurling (Boherlahan): Holycross/Ballycahill 1-18 Moycarkey-Borris 1-09