In GROUP 1, The Borders beat their visitors from Fife at Peebles GC by 5.5 - 3.5, sharing the points in the morning foursomes and winning the singles 4 - 32 in the afternoon.
Lothians got their title defence off to a winning start at Bathgate GC against The North District, sharing the spoils in the foursomes and winning the singles 4.5 - 1.5 for a 6 - 3 victory overall.
In GROUP 2 Ayrshire won the foursomes 3 - 0 against South of Scotland at Royal Troon and shared the afternoon singles en route to a 6 - 3 victory.
In the other fixture in the section, Dumbartonshire matched Ayrshire's 6 - 3 winning margin against Angus at Cardross fighting back from a 2 - 1 deficit in the morning foursomes to take the afternoon singles by 5 - 1.
In GROUP 3, Stirlingshire and Perth & Kinross shared the honours at Dunblane GC with a 4.4. draw, the visitors leading 2 - 1 after the morning foursomes but being pegged back by the hosts who took the afternoon singles 3.5 - 2.5.
Glasgow had a good win away to Clackmannanshire at Alloa GC by 6.5 - 2.5, winning the foursomes by 2.5 - 0.5 and the singles by 4 - 2
In GROUP 4, Argyll & Bute and Lanarkshire fought out a 4.5 - 4.5 draw over the links at Macrahanish the visitors leading 2 - 1 after the foursomes but being matched overall when the hosts won the singles 3.5 - 2.5
The other match in the group saw North East District secure a narrow victory by 5 - 4 over their visitors, Renfrewshire, at Portlethen GC, with the hosts winning the singles 3.5 - 2.5 after the foursomes were shared in the morning.
The second round of matches take place on Sunday the 5th of June with fixtures scheduled as follows:-
Fife vs Lothians at Dunfermline GC
North District Vs Borders at Spey Valley GC (prov.)
South of Scotland vs Dumbartonshire at Southerness GC
Angus Vs Ayrshire at Downfield GC
Perth & Kinross vs Clackmannanshire - venue tbc
Glasgow Vs Stirlingshire - venue tbc
Lanarkshire Vs North East at Lanark GC
Renfrewshire Vs Argyll & Bute - venue tbc