Ireland will face England at Moortown on Friday looking for a win that would give Tony Goode's charges the Raymond Trophy for an unprecedented fourth year running.
While England are seeking their first win since Ganton in 2013 and their 37th outright victory, Ireland are trying to create some history for Irish amateur golf.
They defeated Scotland 10-5 as England were forced to dig deep to beat Wales 9.5-5.5 after losing the foursomes 3-2.
Against Scotland, Ireland claimed the foursomes 4-1 with Paul McBride and Conor O'Rourke, Colin Fairweather and Caolan Rafferty, Peter O'Keeffe and Robin Dawson and Colm Campbell and John Ross Galbraith all winning in the morning.
In the singles, Alex Gleeson was rested and McBride returned at the top of the order after missing out against Wales in the opening day's singles to rest a wrist injury.
He beat Liam Johnson 5 and 4 to maintain his 100 percent record with Rafferty and Rowan Lester also taking their points tallies to three.
O'Keeffe, Conor Purcell and Galbraith provided the other three points as Ireland won the session 6-4.
Ireland hold a slender advantage over England in terms of games won which will be in their favour should tomorrow’s match be halved.
Wales and Scotland will play-off for third place.
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