Ulster are on course for their fourth Youths Interprovincial title after their 5 1/2-3 1/2 win over Munster on the second day of the championships at Waterford Golf Club yesterday.
The holders took two points from the morning foursomes and followed with wins in the singles from David Jones, Gavin McDowell and Robin Symes.
Leinster must now beat favourites Ulster by a big margin in today's final series of games to have any chance of overall victory.