Holders Banbridge were knocked out of the Irish Senior Cup on Saturday following a 3-1 defeat at Railway Union.
Lisnagarveyare the only Ulster representatives left in the draw after defeats for Cookstown, Kilkeel, Annadale, South Antrim and Mossley.
‘Garvey defeated Instonians 3-0 to preserve their Senior Cup credentials.
In the women’s competition Ulster Elks continued their defence of the trophy with a convincing 6-1 win at Corinthian.
They are joined in the quarter-finals by Ards, Pegasus and Ballymoney, who won on penalty strokes against Muckross.
Banbridgehad taken the lead against Railway Union before losing out.
Having failed to take their chances they succumbed to the Dublin side with goals coming from Nick Tate, Mark English and Simon McKeever.
At Shaw’s Bridge a goal from Neal Glassy in the first minute gave Lisnagarvey the ideal start against Instonians.
Sean Murray added a second goal from open play before the quarter of an hour mark to ease the IHL side clear.
With the last play of the game Glassey scored his second to add a little gloss to the scoreline.
Elsewhere it wasn’t a good day for Ulster sides as Cookstown were beaten 3-1 at Three Rock Rovers, Kilkeel lost 3-0 at Cork C of I and despite two goals from Robbie McGuire, Annadale’s poor season continued as they lost 6-3 at home to YMCA.
South Antrim were hammered 9-1 by Pembroke Wanderers and Mossley pushed IHL side Glenanne all the way to penalty shots before losing 6-5. Monkstown were the other winners beating UCC 6-1.
Meanwhile, in the women’s section six different scorers found the net for holders Ulster Elks as they eased into the last eight with a 6-1 win at Corinthian.
Laura McAlpine, Megan Frazer, Gemma Frazer, Jessica McMaster, Robyn Chambers and Kirstie Lammey were the ladies on target.
Pegasus won their Ulster derby at Dungannon 4-1 with Suzanne Ferris and Vanessa Surgenor among the scorers while Ards beat Trinity College 3-0 with Chloe Brown, Emma Reid and Kerry Harvey getting their goals.
Ballymoney are also in the hat for the quarter-final draw after edging Muckross 5-3 after penalty strokes.
Randalstown were beaten 3-0 at home by UCD while Lurgan were unlucky not to get more from their home tie against Railway Union. Sarah McClure got their goal in a 2-1 defeat but they had two other opportunities cleared off the line.
Dublin sides Loreto and Hermes complete the line up for the quarter-finals