With Clontarf slipping up at St. Mary's on Friday night, Terenure College closed in on a home semi-final in Ulster Bank League Division 1A with a well-judged 20-8 win away to Cork Constitution this afternoon.

As Terenure College strengthened their hold on second spot, Ballynahinch made a significant move into Division 1A's top four as they edged out fellow play-off hopefuls UCD by a single point. Meanwhile, in Division 1B, the top four clubs all won as the race for promotion enters its final weeks.

Division 1A leaders Lansdowne will try to get back to winning ways when they visit Old Belvedere tonight, while the other Friday Night Lights tussle sees St. Mary's College entertaining title holders Clontarf at Templeville Road.

Two mouth-watering local derbies kick off the action in Ulster Bank League Division 1B this weekend, as Corinthians make the short trip to Galwegians and Dooradoyle is UL Bohemians' destination for their all-Limerick clash with Garryowen.