Limerick enjoy a four-point lead at the top of Allianz Football League Division 4 after emerging as slender 0-10 to 0-9 winners over Carlow this afternoon.
Carlow had a two-point half-time buffer at the Gaelic Grounds but Limerick, with Ian Ryan impressing, edged home to take their fourth successive league victory.
The Darragh Foley-inspired Carlow side led by 0-9 to 0-7 in the 50th minute following a Martin Doyle score, but amazingly failed to score for the remainder of the contest as three unanswered points from Ryan ensured a home win.
The Darby clan know all about late match-winning scores for Offaly, and Brian hit an injury-time winner as Offaly beat Leitrim 0-9 to 0-8 at Carrick-on-Shannon.
Emlyn Mulligan scored five points for the hosts as Leitrim lost their third game of the campaign.
Leitrim led by 0-4 to 0-3 at half-time and although Peter Cunningham was dismissed for Offaly the visitors held out for victory.
Eight players were on target for London as the Exiles claimed their first win of the league run, edging out Waterford on a 0-14 to 1-10 scoreline at Ruislip on Saturday.
Two late points from substitute Lorcan Mulvey earned Paul Coggins' charges victory in a game which hung in the balance throughout.
London led by 0-8 to 1-3 at half-time, with Rob Ahearne netting the visitors' goal. Three points separated the sides in the 60th minute, but Waterford bounced back to take a late lead with four unanswered points, including two from Paul Whyte.
However, London held their nerve with Cavan native Mulvey picking off two vital points at the death.
A 60th minute goal from Hugh Coghlan paved the way for Tipperary's 1-13 to 0-10 triumph over Munster rivals Clare at Cusack Park.
Both sides were reduced to 14-men in the 67th minute when Tipperary's Alan Maloney and Enda Coughlan of Clare were shown straight red cards.