The big lock went over for a try with the stand-off converting two of Ayr's three tries. Murray McConnell was at scrum-half for Ayr while Mark Bennett, Adam Ashe, Sean Kennedy and Alex Dunbar were in the Stirling squad.
Currie and Boroughmuir fought out a 12-12 draw. James Johnstone and Fergus Scott started for Currie although the hooker went off through injury early in the game.
Rory Lamont was due to play for Dundee against Heriot's but the match fell victim to the weather.