The winners of the Under 18s quarter final clash at Lothian Park will have home advantage against the winners of Ayr and Boroughmuir in the semi-final on January 31.

Hawick Wanderers travel to Currie in their quarter-final on Saturday with the winners facing either Highland or West of Scotland at the end of the month.

The final of the Under 18s Youth Cup will be played at Murrayfield on Sunday, March 1.

In the Under 18s Bowl competition Peebles travel to face Allan Glen's on Saturday, with the winners enjoying home advantage against either Musselburgh or Dunfermline.

Melrose Wasps welcome Biggar on Saturday with the winner entertaining either Ross Sutherland or Cumnock at the end of the month.

Ayr's under-16 team, who won last year's competition, play at their Millbrae home against Boroughmuir on Sunday as the junior tournament commences.

Also at home, are Hawick Albion, Stirling County and Currie. They welcome Ellon, Melrose and GHA to Volunteer Park, Bridgehaugh and Malleny Park respectively.

In the under-16 Bowl, this Sunday, Peebles face Highland at The Gytes; Hamilton welcome Dunbar to Laigh Bent; Dundee Eagles play Gala Red Triangle at Mayfield and Biggar conclude the fixture list with their match against Garnock at Hartree Mill.

Scottish Rugby's Head of Youth and Schools, Colin Thomson, said: "The National Youth Cup and Bowl competitions are the pinnacle of Scottish club youth rugby with teams qualifying from their respective leagues to participate at a national level.

"Knock-out rugby is a chance to test yourself and to embrace the challenge of playing against the best club youth teams from across the country.

"I wish every team involved in 2015 the very best in the national stages and look forward to welcoming the eventual finalists to Murrayfield on finals day.”